{"id":555,"date":"2025-10-22T15:15:15","date_gmt":"2025-10-22T07:15:15","guid":{"rendered":"https:\/\/sunhyings.com\/?page_id=555"},"modified":"2026-02-04T16:45:33","modified_gmt":"2026-02-04T08:45:33","slug":"plate-flat-face-flanges","status":"publish","type":"page","link":"https:\/\/sunhyings.com\/pt\/stainless-steel-flange\/plate-flat-face-flanges\/","title":{"rendered":"Flanges Chapa (Face Plana)"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"555\" class=\"elementor elementor-555\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f664d6a e-flex e-con-boxed e-con e-parent\" data-id=\"f664d6a\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-209edcd e-con-full e-flex e-con e-child\" data-id=\"209edcd\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-97109e5 elementor-widget elementor-widget-heading\" data-id=\"97109e5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Plate Flat Face (FF) Flanges - ASME B16.5<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-41d3dbe elementor-widget elementor-widget-shortcode\" data-id=\"41d3dbe\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\"><nav aria-label=\"breadcrumbs\" class=\"rank-math-breadcrumb\"><p><span class=\"last\">Home<\/span><\/p><\/nav><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ca1a0ca elementor-widget elementor-widget-text-editor\" data-id=\"ca1a0ca\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Plate Flat Face (FF) flanges are a foundational component for low-pressure piping systems, designed for applications where a full-face soft gasket is required.<\/p><p>As a specialist manufacturer of industrial flanges, Sunhyings produces a comprehensive range of Plate FF Flanges engineered to meet strict <b>ASME B16.5<\/b> standards. Our production capabilities cover all standard specifications, including <b>Class 150<\/b> and <b>Class 300<\/b>, in materials such as <b>Stainless Steel (SS304\/316L)<\/b>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c83f3b0 e-flex e-con-boxed e-con e-parent\" data-id=\"c83f3b0\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-3b3dd55 e-con-full e-flex e-con e-child\" data-id=\"3b3dd55\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-6696624 e-con-full e-flex e-con e-child\" data-id=\"6696624\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-048574b elementor-widget elementor-widget-heading\" data-id=\"048574b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Types of Plate Flat Face Flanges We Supply<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5e758c7 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"5e758c7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-939b8b9 elementor-widget elementor-widget-n-accordion\" data-id=\"939b8b9\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;n_accordion_animation_duration&quot;:{&quot;unit&quot;:&quot;ms&quot;,&quot;size&quot;:600,&quot;sizes&quot;:[]},&quot;default_state&quot;:&quot;expanded&quot;,&quot;max_items_expended&quot;:&quot;one&quot;}\" data-widget_type=\"nested-accordion.default\">\n\t\t\t\t\t\t\t<div class=\"e-n-accordion\" aria-label=\"Accordion. Open links with Enter or Space, close with Escape, and navigate with Arrow Keys\">\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1540\" class=\"e-n-accordion-item\" open>\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"1\" tabindex=\"0\" aria-expanded=\"true\" aria-controls=\"e-n-accordion-item-1540\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> <div class=\"centered-link-container\">     <a href=\"https:\/\/sunhyings.com\/stainless-steel-flange\" class=\"styled-flange-link\">                  <img decoding=\"async\" src=\"https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/flang.webp\" alt=\"Plate Flat Face Flanges\" width=\"50px\" height=\"50px\">                        Stainless Steel Flanges     <\/a> <\/div> <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1540\" class=\"elementor-element elementor-element-0ecb2b8 e-con-full e-flex e-con e-child\" data-id=\"0ecb2b8\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c918eb8 elementor-widget elementor-widget-n-accordion\" data-id=\"c918eb8\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;default_state&quot;:&quot;expanded&quot;,&quot;max_items_expended&quot;:&quot;one&quot;,&quot;n_accordion_animation_duration&quot;:{&quot;unit&quot;:&quot;ms&quot;,&quot;size&quot;:400,&quot;sizes&quot;:[]}}\" data-widget_type=\"nested-accordion.default\">\n\t\t\t\t\t\t\t<div class=\"e-n-accordion\" aria-label=\"Accordion. Open links with Enter or Space, close with Escape, and navigate with Arrow Keys\">\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2100\" class=\"e-n-accordion-item\" open>\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"1\" tabindex=\"0\" aria-expanded=\"true\" aria-controls=\"e-n-accordion-item-2100\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> By Design Type <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region region\" aria-labelledby=\"e-n-accordion-item-1540 e-n-accordion-item-2100\" class=\"elementor-element elementor-element-f80cd32 e-con-full e-flex e-con e-child\" data-id=\"f80cd32\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-efbf6fb elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"efbf6fb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/sunhyings.com\/stainless-steel-flange\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">All Stainless Steel Flange<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/sunhyings.com\/stainless-steel-flange\/weld-neck-flanges\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">\u200b\u200bWeld Neck Flanges<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/sunhyings.com\/stainless-steel-flange\/slip-on-flanges\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">\u200b\u200bSlip-On Flanges<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/sunhyings.com\/stainless-steel-flange\/blind-flanges\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Blind Flanges<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/sunhyings.com\/stainless-steel-flange\/socket-weld-flanges\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Socket Weld Flanges<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/sunhyings.com\/stainless-steel-flange\/threaded-flanges\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Threaded Flanges<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/sunhyings.com\/stainless-steel-flange\/lap-joint-flanges\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Lap Joint Flanges<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/sunhyings.com\/stainless-steel-flange\/plate-flat-face-flanges\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">\u200b\u200bPlate Flat Face Flanges<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/sunhyings.com\/stainless-steel-flange\/custom-flanges\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Custom Flange\u200bs<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2101\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"2\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2101\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> By Standard &amp; Class <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region region\" aria-labelledby=\"e-n-accordion-item-1540 e-n-accordion-item-2101\" class=\"elementor-element elementor-element-168f160 e-con-full e-flex e-con e-child\" data-id=\"168f160\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-300a019 elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"300a019\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/sunhyings.com\/stainless-steel-flange\/standards\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">All Standard<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/sunhyings.com\/stainless-steel-flange\/standards\/asme-b16-5\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">ASME \/ ANSI B16.5<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/sunhyings.com\/stainless-steel-flange\/standards\/asme-b16-47\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">ASME B16.47 Series A\/B<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/sunhyings.com\/stainless-steel-flange\/standards\/api-6a\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">High Pressure (API 6A)<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/sunhyings.com\/stainless-steel-flange\/standards\/en-din\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">EN 1092-1 \/ DIN<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/sunhyings.com\/stainless-steel-flange\/standards\/jis-b2220\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">JIS B2220<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2102\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"3\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2102\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Advanced Materials <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region region\" aria-labelledby=\"e-n-accordion-item-1540 e-n-accordion-item-2102\" class=\"elementor-element elementor-element-6226968 e-con-full e-flex e-con e-child\" data-id=\"6226968\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ff627f5 elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"ff627f5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/sunhyings.com\/materials\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">All Materials<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/sunhyings.com\/materials\/stainless-steel-304-316\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">304\/304L &amp; 316\/316L<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/sunhyings.com\/materials\/duplex-steel-2205\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Duplex Steel 2205<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/sunhyings.com\/materials\/super-duplex-2507\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Super Duplex 2507<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/sunhyings.com\/materials\/nickel-alloys-flanges\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Nickel Alloys<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/sunhyings.com\/materials\/titanium-flanges\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Titanium Flanges<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/sunhyings.com\/materials\/super-austenitic-flanges\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Super Austenitic<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2103\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"4\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2103\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Specialty &amp; Engineering <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region region\" aria-labelledby=\"e-n-accordion-item-1540 e-n-accordion-item-2103\" class=\"elementor-element elementor-element-89af282 e-con-full e-flex e-con e-child\" data-id=\"89af282\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-79d381e elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"79d381e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/sunhyings.com\/stainless-steel-flange\/specialty\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">All Specialty<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/sunhyings.com\/stainless-steel-flange\/specialty\/tube-sheet-flanges\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Tube Sheet Flanges<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/sunhyings.com\/stainless-steel-flange\/specialty\/pressure-vessel-flanges\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Pressure Vessel Flanges<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/sunhyings.com\/stainless-steel-flange\/specialty\/orifice-flanges\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Orifice Flanges<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/sunhyings.com\/stainless-steel-flange\/specialty\/anchor-flanges\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Anchor Flanges<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/sunhyings.com\/stainless-steel-flange\/specialty\/swivel-flanges\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Swivel Flanges<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/sunhyings.com\/stainless-steel-flange\/specialty\/spectacle-blinds-flanges\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Spectacle Blinds \/ Spades<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3e8f661 elementor-widget elementor-widget-text-editor\" data-id=\"3e8f661\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><a href=\"https:\/\/sunhyings.com\/resources\/flange-dimensions\/\">\u27a1 Flange Dimensions Table<\/a><\/p><p><a href=\"https:\/\/sunhyings.com\/resources\/material-grades\/\">\u27a1 Material Grades Guide<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-17c7e39 e-con-full e-flex e-con e-child\" data-id=\"17c7e39\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-47925bc e-grid e-con-full e-con e-child\" data-id=\"47925bc\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fa7c502 elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"fa7c502\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><img fetchpriority=\"high\" decoding=\"async\" width=\"2560\" height=\"2560\" src=\"https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges-2-scaled.webp\" class=\"attachment-full size-full wp-image-929\" alt=\"\u200b\u200bPlate Flat Face Flanges\" srcset=\"https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges-2-scaled.webp 2560w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges-2-300x300.webp 300w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges-2-1024x1024.webp 1024w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges-2-150x150.webp 150w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges-2-768x768.webp 768w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges-2-1536x1536.webp 1536w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges-2-2048x2048.webp 2048w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges-2-12x12.webp 12w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/figure><div class=\"elementor-image-box-content\"><h3 class=\"elementor-image-box-title\">4-Bolt Stainless Steel Plate Flange, PN16 Flat Face (FF)<\/h3><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-21d52f3 elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"21d52f3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><img decoding=\"async\" width=\"2560\" height=\"2560\" src=\"https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges2-scaled.webp\" class=\"attachment-full size-full wp-image-931\" alt=\"\u200b\u200bPlate Flat Face Flanges2\" srcset=\"https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges2-scaled.webp 2560w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges2-300x300.webp 300w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges2-1024x1024.webp 1024w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges2-150x150.webp 150w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges2-768x768.webp 768w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges2-1536x1536.webp 1536w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges2-2048x2048.webp 2048w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges2-12x12.webp 12w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/figure><div class=\"elementor-image-box-content\"><h3 class=\"elementor-image-box-title\">4-Bolt SS304 Stainless Steel Plate Flange, FF<\/h3><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c645d83 elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"c645d83\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><img decoding=\"async\" width=\"2560\" height=\"2560\" src=\"https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges3-scaled.webp\" class=\"attachment-full size-full wp-image-932\" alt=\"\u200b\u200bPlate Flat Face Flanges3\" srcset=\"https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges3-scaled.webp 2560w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges3-300x300.webp 300w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges3-1024x1024.webp 1024w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges3-150x150.webp 150w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges3-768x768.webp 768w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges3-1536x1536.webp 1536w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges3-2048x2048.webp 2048w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges3-12x12.webp 12w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/figure><div class=\"elementor-image-box-content\"><h3 class=\"elementor-image-box-title\">4-Bolt Stainless Steel Plate Flange, ASME B16.5 Class 150 FF<\/h3><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2096318 elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"2096318\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><a href=\"https:\/\/sunhyings.com\/plate-slip-on-flange-manufacturer-pn16-304-q235b\/\" tabindex=\"-1\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"2560\" src=\"https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges4-scaled.webp\" class=\"attachment-full size-full wp-image-933\" alt=\"\u200b\u200bPlate Flat Face Flanges4\" srcset=\"https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges4-scaled.webp 2560w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges4-300x300.webp 300w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges4-1024x1024.webp 1024w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges4-150x150.webp 150w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges4-768x768.webp 768w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges4-1536x1536.webp 1536w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges4-2048x2048.webp 2048w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges4-12x12.webp 12w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/a><\/figure><div class=\"elementor-image-box-content\"><h3 class=\"elementor-image-box-title\"><a href=\"https:\/\/sunhyings.com\/plate-slip-on-flange-manufacturer-pn16-304-q235b\/\">8-Bolt Large Diameter Stainless Steel Plate Flange, PN10 FF<\/a><\/h3><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d7a9166 elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"d7a9166\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"2560\" src=\"https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges5-scaled.webp\" class=\"attachment-full size-full wp-image-934\" alt=\"\u200b\u200bPlate Flat Face Flanges5\" srcset=\"https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges5-scaled.webp 2560w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges5-300x300.webp 300w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges5-1024x1024.webp 1024w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges5-150x150.webp 150w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges5-768x768.webp 768w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges5-1536x1536.webp 1536w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges5-2048x2048.webp 2048w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges5-12x12.webp 12w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/figure><div class=\"elementor-image-box-content\"><h3 class=\"elementor-image-box-title\">4-Bolt Stainless Steel Plate Flange, DIN Standard FF<\/h3><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-849096e elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"849096e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"2560\" src=\"https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges7-scaled.webp\" class=\"attachment-full size-full wp-image-936\" alt=\"\u200b\u200bPlate Flat Face Flanges7\" srcset=\"https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges7-scaled.webp 2560w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges7-300x300.webp 300w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges7-1024x1024.webp 1024w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges7-150x150.webp 150w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges7-768x768.webp 768w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges7-1536x1536.webp 1536w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges7-2048x2048.webp 2048w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges7-12x12.webp 12w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/figure><div class=\"elementor-image-box-content\"><h3 class=\"elementor-image-box-title\">8-Bolt SS316L Plate Flange, PN16 Flat Face (FF)<\/h3><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a1b2b3e elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"a1b2b3e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"2560\" src=\"https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges9-scaled.webp\" class=\"attachment-full size-full wp-image-938\" alt=\"\u200b\u200bPlate Flat Face Flanges9\" srcset=\"https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges9-scaled.webp 2560w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges9-300x300.webp 300w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges9-1024x1024.webp 1024w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges9-150x150.webp 150w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges9-768x768.webp 768w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges9-1536x1536.webp 1536w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges9-2048x2048.webp 2048w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges9-12x12.webp 12w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/figure><div class=\"elementor-image-box-content\"><h3 class=\"elementor-image-box-title\">8-Bolt Industrial Stainless Steel Plate Flange, FF<\/h3><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9f61df7 elementor-position-top elementor-widget elementor-widget-image-box\" data-id=\"9f61df7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"2560\" src=\"https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges10-scaled.webp\" class=\"attachment-full size-full wp-image-939\" alt=\"\u200b\u200bPlate Flat Face Flanges10\" srcset=\"https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges10-scaled.webp 2560w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges10-300x300.webp 300w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges10-1024x1024.webp 1024w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges10-150x150.webp 150w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges10-768x768.webp 768w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges10-1536x1536.webp 1536w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges10-2048x2048.webp 2048w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/\u200b\u200bPlate-Flat-Face-Flanges10-12x12.webp 12w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/figure><div class=\"elementor-image-box-content\"><h3 class=\"elementor-image-box-title\">8-Bolt Stainless Steel Plate Flange, JIS 10K FF<\/h3><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-cf4f4b8 e-con-full e-flex e-con e-parent\" data-id=\"cf4f4b8\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-7c978c7 e-con-full e-flex e-con e-child\" data-id=\"7c978c7\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-88f7da7 e-flex e-con-boxed e-con e-child\" data-id=\"88f7da7\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7312530 elementor-widget elementor-widget-heading\" data-id=\"7312530\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Precision Forged Plate FF Flanges Supplier<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e052603 elementor-widget elementor-widget-text-editor\" data-id=\"e052603\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>In low-pressure piping systems, reliable sealing is critical. Sunhyings\u2019 Plate FF Flanges are designed specifically for such applications. Their flat-face design is intended for use with full-face gaskets, providing a cost-effective and secure sealing solution.<\/p><p>As a professional manufacturer, we ensure that every flange meets the precise tolerances of ASME B16.5. We specialize in SS304\/316L stainless steel and maintain a stock of Class 150 and Class 300 to ensure rapid response and superior quality for your projects.<\/p><ul><li><p><b>Nominal Pipe Size (NPS \/ DN):<\/b><\/p><ul><li><p><b>NPS:<\/b> 1\/2\u2033 to 48\u2033<\/p><\/li><li><p><b>DN (Metric):<\/b> DN15 to DN2000 (Covers small to large pipelines)<\/p><\/li><\/ul><\/li><li><p><b>Pressure Rating (Class \/ PN):<\/b><\/p><ul><li><p><b>ASME Class:<\/b> 150, 300, 400, 600, 900, 1500, 2500<\/p><\/li><li><p><b>Metric (PN):<\/b> PN6, PN10, PN16, PN25, PN40 (Indicates pressure capacity)<\/p><\/li><\/ul><\/li><li><p><b>Joint\/Facing Type:<\/b><\/p><p>Flat Face (FF)\uff0c Raised Face (RF) \uff0cRing Type Joint (RTJ)<\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2cfff57 elementor-align-left elementor-widget elementor-widget-button\" data-id=\"2cfff57\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"#elementor-action%3Aaction%3Dpopup%3Aopen%26settings%3DeyJpZCI6IjEzNCIsInRvZ2dsZSI6ZmFsc2V9\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Get Your Project Quote Now<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1181155 e-con-full e-flex e-con e-parent\" data-id=\"1181155\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-db1e1da e-flex e-con-boxed e-con e-child\" data-id=\"db1e1da\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-4843f90 e-con-full e-flex e-con e-child\" data-id=\"4843f90\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4316e5a elementor-widget elementor-widget-heading\" data-id=\"4316e5a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">What is a Plate \/  Flat Face Flanges\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-28369e4 elementor-widget elementor-widget-text-editor\" data-id=\"28369e4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Plate flanges are a highly cost-effective connection solution, as they are cut directly from sheet steel rather than forged. This manufacturing process makes them ideal for low-pressure, non-critical systems such as water treatment and HVAC. During installation, they are fitted over the pipe and secured by fillet welds on both the inner and outer sides.<\/p><p>Their &#8220;flat face&#8221; (FF) characteristic means that the entire sealing surface of the flange is completely flat. This design requires the use of a full-face gasket, whose key function is to protect the connected, fragile equipment (such as cast iron valves or pumps). By evenly distributing bolt pressure across the entire surface, FF flanges effectively prevent flange breakage due to uneven stress.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-cad88d4 e-con-full e-flex e-con e-child\" data-id=\"cad88d4\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-33ad67a elementor-widget elementor-widget-image\" data-id=\"33ad67a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"418\" src=\"https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/11\/What-is-a-Plate-Flat-Face-Flanges.webp\" class=\"attachment-large size-large wp-image-2272\" alt=\"What is a Plate Flat Face Flanges\" srcset=\"https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/11\/What-is-a-Plate-Flat-Face-Flanges.webp 1024w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/11\/What-is-a-Plate-Flat-Face-Flanges-300x157.webp 300w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/11\/What-is-a-Plate-Flat-Face-Flanges-768x401.webp 768w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/11\/What-is-a-Plate-Flat-Face-Flanges-18x9.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4c5860d e-flex e-con-boxed e-con e-parent\" data-id=\"4c5860d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-6524632 e-con-full e-flex e-con e-child\" data-id=\"6524632\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-ba80dd2 e-con-full e-flex e-con e-child\" data-id=\"ba80dd2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b45f36d elementor-widget elementor-widget-heading\" data-id=\"b45f36d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Plate \/ Flat Face Flanges Specifications<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b896ab7 elementor-widget elementor-widget-text-editor\" data-id=\"b896ab7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Multi-Standard Versatility<\/p><p>Our Plate Flanges are engineered for global adaptability, fully compliant with EN 1092-1 Type 01 (European) and JIS B2220 SOP (Japanese\/Asian) standards.<\/p><ul data-path-to-node=\"6\"><li><p data-path-to-node=\"6,0,0\"><b>Legacy Support:<\/b> Fully compatible with and often used as a direct replacement for the classic <b>DIN 2576<\/b> (PN10\/PN16) standard.<\/p><\/li><li><p data-path-to-node=\"6,1,0\"><b>Waterworks Application:<\/b> Also available in <b>AWWA C207<\/b> and <b>BS 10<\/b> configurations for municipal water and low-pressure utility lines.<\/p><\/li><\/ul><p>Design &amp; Engineering<\/p><p>Machined directly from high-quality steel plate, offering a robust yet cost-effective solution for non-critical pressure applications.<\/p><ul data-path-to-node=\"8\"><li><p data-path-to-node=\"8,0,0\"><b>Flat Face (FF) Design:<\/b> Ideal for mating with brittle materials (such as cast iron valves) or where full-face gaskets are required to prevent flange rotation.<\/p><\/li><li><p data-path-to-node=\"8,1,0\"><b>Profile:<\/b> Features a low-profile design without a hub, reducing weight and simplifying alignment in tight spaces compared to Slip-On flanges.<\/p><\/li><\/ul><p>Dimensional Reference<\/p><p>Refer to the schematic diagram to ensure correct fitment:<\/p><ul data-path-to-node=\"10\"><li><p data-path-to-node=\"10,0,0\"><b><span class=\"math-inline\" data-math=\"D\">D<\/span>:<\/b> Outside Diameter<\/p><\/li><li><p data-path-to-node=\"10,1,0\"><b><span class=\"math-inline\" data-math=\"K\">K<\/span>:<\/b> Bolt Circle Diameter (Crucial for mating compatibility)<\/p><\/li><li><p data-path-to-node=\"10,2,0\"><b><span class=\"math-inline\" data-math=\"B\">B<\/span>:<\/b> Inside Diameter (Pipe Clearance)<\/p><\/li><li><p data-path-to-node=\"10,3,0\"><b><span class=\"math-inline\" data-math=\"C\">C<\/span>:<\/b> Flange Thickness<\/p><\/li><\/ul><p data-path-to-node=\"11\"><i>Technical Note: Plate flanges are designed for low-pressure systems. For high-stress or cyclic pressure environments, please consider our Forged Slip-On or Weld Neck flanges.<\/i><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-82a47ff elementor-widget elementor-widget-image\" data-id=\"82a47ff\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"543\" height=\"229\" src=\"https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/11\/Plate-Flat-Face-Flanges-Dimensions9.webp\" class=\"attachment-large size-large wp-image-2270\" alt=\"\" srcset=\"https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/11\/Plate-Flat-Face-Flanges-Dimensions9.webp 543w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/11\/Plate-Flat-Face-Flanges-Dimensions9-300x127.webp 300w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/11\/Plate-Flat-Face-Flanges-Dimensions9-18x8.webp 18w\" sizes=\"(max-width: 543px) 100vw, 543px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-8380319 e-con-full e-flex e-con e-child\" data-id=\"8380319\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fe6a5d5 elementor-widget elementor-widget-html\" data-id=\"fe6a5d5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<style>\r\n    \/* --- Sunhyings Technical Widget Styles (Visuals Consistent) --- *\/\r\n    :root {\r\n        --brand-color: #ffc107; \/* Yellow Line *\/\r\n        --brand-dark: #b38600;\r\n        --header-bg: #003366;   \/* Dark Navy Blue *\/\r\n        --header-text: #ffffff;\r\n        --header-red: #ff5252;  \/* Red for Bolt Circle *\/\r\n        --header-sub: #a3b8cc;  \/* Light Blue-Grey *\/\r\n        --text-dark: #2c3e50;\r\n        --highlight-bg: #fffbeb;\r\n    }\r\n\r\n    .sh-container {\r\n        font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;\r\n        max-width: 1200px;\r\n        margin: 0 auto;\r\n        border: 1px solid #e0e0e0;\r\n        box-shadow: 0 4px 12px rgba(0,0,0,0.06);\r\n        background: #fff;\r\n        border-radius: 8px;\r\n        overflow: hidden;\r\n    }\r\n\r\n    \/* Header Section *\/\r\n    .sh-header {\r\n        background-color: var(--text-dark);\r\n        color: white;\r\n        padding: 15px 25px;\r\n        display: flex;\r\n        justify-content: space-between;\r\n        align-items: center;\r\n        flex-wrap: wrap;\r\n    }\r\n    .sh-header h2 { margin: 0; font-size: 22px; font-weight: 600; }\r\n    .sh-header span { font-size: 13px; opacity: 0.9; color: var(--brand-color); font-weight: 500; }\r\n\r\n    \/* Tabs Navigation *\/\r\n    .sh-tabs {\r\n        display: flex;\r\n        flex-wrap: wrap;\r\n        background-color: #f1f1f1;\r\n        border-bottom: 2px solid #ddd;\r\n    }\r\n    .sh-tab-btn {\r\n        flex: 1;\r\n        min-width: 120px;\r\n        padding: 16px 10px;\r\n        border: none;\r\n        background: #f1f1f1;\r\n        cursor: pointer;\r\n        font-size: 14px;\r\n        font-weight: 700;\r\n        color: #555;\r\n        transition: all 0.2s ease;\r\n        border-right: 1px solid #e0e0e0;\r\n    }\r\n    .sh-tab-btn:hover { background-color: #e9ecef; color: #000; }\r\n    .sh-tab-btn.active {\r\n        background-color: #fff;\r\n        color: var(--header-bg);\r\n        border-top: 3px solid var(--brand-color);\r\n        margin-bottom: -1px;\r\n    }\r\n\r\n    \/* Table & Content *\/\r\n    .sh-content { display: none; animation: fadeIn 0.3s; }\r\n    .sh-content.active-content { display: block; }\r\n    \r\n    .sh-table-wrapper { overflow-x: auto; padding: 25px; }\r\n    .sh-table { width: 100%; border-collapse: collapse; min-width: 800px; font-size: 14px; }\r\n    .sh-table th, .sh-table td { border: 1px solid #dee2e6; padding: 12px 10px; text-align: center; color: #333; }\r\n    \r\n    \/* Header Styling *\/\r\n    .sh-table th {\r\n        background-color: var(--header-bg);\r\n        color: var(--header-text);\r\n        font-weight: 700;\r\n        text-transform: uppercase;\r\n        border-bottom: 3px solid var(--brand-color);\r\n        border-right: 1px solid rgba(255,255,255,0.1);\r\n        vertical-align: middle;\r\n        white-space: nowrap;\r\n    }\r\n    .sh-table th span { \r\n        display: block; \r\n        font-size: 10px; \r\n        color: var(--header-sub); \r\n        font-weight: normal; \r\n        margin-top: 4px; \r\n    }\r\n    \r\n    \/* Red Highlight Header *\/\r\n    .sh-table th.th-red-highlight { color: var(--header-red); }\r\n    .sh-table th.th-red-highlight span { color: rgba(255, 82, 82, 0.7); }\r\n\r\n    \/* Column Specifics *\/\r\n    .col-secondary { background-color: #f4f8fb; color: #003366; font-weight: 600; }\r\n    .col-highlight { background-color: var(--highlight-bg); font-weight: 700; color: #d32f2f; }\r\n    \r\n    .sh-table tr:nth-child(even) { background-color: #fbfbfb; }\r\n    .sh-table tr:hover { background-color: #fff9db; }\r\n\r\n    \/* CTA *\/\r\n    .sh-cta-block { text-align: center; padding: 20px; background: #fcfcfc; border-top: 1px solid #eee; }\r\n    .sh-cta-btn {\r\n        display: inline-block;\r\n        background-color: var(--header-bg);\r\n        color: #fff;\r\n        padding: 10px 25px;\r\n        border-radius: 4px;\r\n        text-decoration: none;\r\n        font-weight: 600;\r\n        font-size: 14px;\r\n        transition: background 0.3s;\r\n    }\r\n    .sh-cta-btn:hover { background-color: var(--brand-dark); }\r\n\r\n    @keyframes fadeIn { from {opacity:0; transform: translateY(5px);} to {opacity:1; transform: translateY(0);} }\r\n<\/style>\r\n\r\n<section class=\"sh-container\">\r\n\r\n    <div class=\"sh-header\">\r\n        <h2>Plate Flanges (Flat Face, PN\/10K\/AWWA) Dimensions<\/h2>\r\n        <span>Standards: EN 1092-1 Type 01, JIS B2220 SOP, AWWA C207, BS 10<\/span>\r\n    <\/div>\r\n\r\n    <div class=\"sh-tabs\">\r\n        <button class=\"sh-tab-btn active\" onclick=\"openTab(event, 'pl-en')\">EN 1092-1 Type 01<\/button>\r\n        <button class=\"sh-tab-btn\" onclick=\"openTab(event, 'pl-jis')\">JIS 10K SOP<\/button>\r\n        <button class=\"sh-tab-btn\" onclick=\"openTab(event, 'pl-awwa')\">AWWA C207 (USA)<\/button>\r\n        <button class=\"sh-tab-btn\" onclick=\"openTab(event, 'pl-bs')\">BS 10 Table D\/E<\/button>\r\n        <button class=\"sh-tab-btn\" onclick=\"openTab(event, 'pl-vs')\">Plate vs Slip On<\/button>\r\n    <\/div>\r\n\r\n    <div id=\"pl-en\" class=\"sh-content active-content\">\r\n        <div class=\"sh-table-wrapper\">\r\n            <h3>EN 1092-1 Type 01 (PN16) - Metric Plate<\/h3>\r\n            <p style=\"font-size:13px; color:#666; margin-bottom:10px;\">Commonly referred to as DIN 2576 (legacy standard).<\/p>\r\n            <table class=\"sh-table\">\r\n                <thead>\r\n                    <tr>\r\n                        <th>DN<br><span>(Size)<\/span><\/th>\r\n                        <th>Outside Dia (D)<br><span>(mm)<\/span><\/th>\r\n                        <th class=\"col-secondary\">Inside Dia (B)<br><span>(Pipe Clearance)<\/span><\/th>\r\n                        <th class=\"col-secondary\">Thickness (b)<br><span>(mm)<\/span><\/th>\r\n                        <th class=\"th-red-highlight\">Bolt Circle (K)<br><span>(mm)<\/span><\/th>\r\n                        <th>Holes<br><span>(Qty)<\/span><\/th>\r\n                        <th>Bolt<br><span>(Metric)<\/span><\/th>\r\n                    <\/tr>\r\n                <\/thead>\r\n                <tbody>\r\n                    <tr><td>DN15<\/td><td>95<\/td><td class=\"col-secondary\">22.0<\/td><td class=\"col-secondary\">14<\/td><td class=\"col-highlight\">65<\/td><td>4<\/td><td>M12<\/td><\/tr>\r\n                    <tr><td>DN20<\/td><td>105<\/td><td class=\"col-secondary\">27.5<\/td><td class=\"col-secondary\">16<\/td><td class=\"col-highlight\">75<\/td><td>4<\/td><td>M12<\/td><\/tr>\r\n                    <tr><td>DN25<\/td><td>115<\/td><td class=\"col-secondary\">34.5<\/td><td class=\"col-secondary\">16<\/td><td class=\"col-highlight\">85<\/td><td>4<\/td><td>M12<\/td><\/tr>\r\n                    <tr><td>DN40<\/td><td>150<\/td><td class=\"col-secondary\">49.5<\/td><td class=\"col-secondary\">18<\/td><td class=\"col-highlight\">110<\/td><td>4<\/td><td>M16<\/td><\/tr>\r\n                    <tr><td>DN50<\/td><td>165<\/td><td class=\"col-secondary\">61.5<\/td><td class=\"col-secondary\">20<\/td><td class=\"col-highlight\">125<\/td><td>4<\/td><td>M16<\/td><\/tr>\r\n                    <tr><td>DN80<\/td><td>200<\/td><td class=\"col-secondary\">90.5<\/td><td class=\"col-secondary\">20<\/td><td class=\"col-highlight\">160<\/td><td>8<\/td><td>M16<\/td><\/tr>\r\n                    <tr><td>DN100<\/td><td>220<\/td><td class=\"col-secondary\">116.0<\/td><td class=\"col-secondary\">22<\/td><td class=\"col-highlight\">180<\/td><td>8<\/td><td>M16<\/td><\/tr>\r\n                    <tr><td>DN150<\/td><td>285<\/td><td class=\"col-secondary\">170.5<\/td><td class=\"col-secondary\">24<\/td><td class=\"col-highlight\">240<\/td><td>8<\/td><td>M20<\/td><\/tr>\r\n                    <tr><td>DN200<\/td><td>340<\/td><td class=\"col-secondary\">221.5<\/td><td class=\"col-secondary\">26<\/td><td class=\"col-highlight\">295<\/td><td>12<\/td><td>M20<\/td><\/tr>\r\n                <\/tbody>\r\n            <\/table>\r\n        <\/div>\r\n    <\/div>\r\n\r\n    <div id=\"pl-jis\" class=\"sh-content\">\r\n        <div class=\"sh-table-wrapper\">\r\n            <h3>JIS B2220 10K SOP (Slip On Plate)<\/h3>\r\n            <table class=\"sh-table\">\r\n                <thead>\r\n                    <tr>\r\n                        <th>Size<br><span>(DN)<\/span><\/th>\r\n                        <th>Outside Dia<br><span>(mm)<\/span><\/th>\r\n                        <th class=\"col-secondary\">Inside Dia<br><span>(mm)<\/span><\/th>\r\n                        <th class=\"col-secondary\">Thickness<br><span>(mm)<\/span><\/th>\r\n                        <th class=\"th-red-highlight\">Bolt Circle<br><span>(mm)<\/span><\/th>\r\n                        <th>Holes<br><span>(Qty)<\/span><\/th>\r\n                        <th>Bolt<br><span>(Metric)<\/span><\/th>\r\n                    <\/tr>\r\n                <\/thead>\r\n                <tbody>\r\n                    <tr><td>15A<\/td><td>95<\/td><td class=\"col-secondary\">22.2<\/td><td class=\"col-secondary\">12<\/td><td class=\"col-highlight\">70<\/td><td>4<\/td><td>M15<\/td><\/tr>\r\n                    <tr><td>25A<\/td><td>125<\/td><td class=\"col-secondary\">34.5<\/td><td class=\"col-secondary\">14<\/td><td class=\"col-highlight\">90<\/td><td>4<\/td><td>M16<\/td><\/tr>\r\n                    <tr><td>40A<\/td><td>140<\/td><td class=\"col-secondary\">49.1<\/td><td class=\"col-secondary\">16<\/td><td class=\"col-highlight\">105<\/td><td>4<\/td><td>M16<\/td><\/tr>\r\n                    <tr><td>50A<\/td><td>155<\/td><td class=\"col-secondary\">61.1<\/td><td class=\"col-secondary\">16<\/td><td class=\"col-highlight\">120<\/td><td>4<\/td><td>M16<\/td><\/tr>\r\n                    <tr><td>80A<\/td><td>185<\/td><td class=\"col-secondary\">90.0<\/td><td class=\"col-secondary\">18<\/td><td class=\"col-highlight\">150<\/td><td>8<\/td><td>M16<\/td><\/tr>\r\n                    <tr><td>100A<\/td><td>210<\/td><td class=\"col-secondary\">115.4<\/td><td class=\"col-secondary\">18<\/td><td class=\"col-highlight\">175<\/td><td>8<\/td><td>M16<\/td><\/tr>\r\n                    <tr><td>150A<\/td><td>280<\/td><td class=\"col-secondary\">166.6<\/td><td class=\"col-secondary\">22<\/td><td class=\"col-highlight\">240<\/td><td>8<\/td><td>M20<\/td><\/tr>\r\n                    <tr><td>200A<\/td><td>330<\/td><td class=\"col-secondary\">218.0<\/td><td class=\"col-secondary\">22<\/td><td class=\"col-highlight\">290<\/td><td>12<\/td><td>M20<\/td><\/tr>\r\n                <\/tbody>\r\n            <\/table>\r\n        <\/div>\r\n    <\/div>\r\n\r\n    <div id=\"pl-awwa\" class=\"sh-content\">\r\n        <div class=\"sh-table-wrapper\">\r\n            <h3>AWWA C207 Class D (150 psi)<\/h3>\r\n            <p style=\"font-size:13px; color:#666; margin-bottom:10px;\">The US standard for waterworks plate flanges (Flat Face).<\/p>\r\n            <table class=\"sh-table\">\r\n                <thead>\r\n                    <tr>\r\n                        <th>NPS<br><span>(Size)<\/span><\/th>\r\n                        <th>OD<br><span>(Inch)<\/span><\/th>\r\n                        <th class=\"col-secondary\">ID<br><span>(Inch)<\/span><\/th>\r\n                        <th class=\"col-secondary\">Thickness<br><span>(Inch)<\/span><\/th>\r\n                        <th class=\"th-red-highlight\">Bolt Circle<br><span>(Inch)<\/span><\/th>\r\n                        <th>Holes<br><span>(Qty)<\/span><\/th>\r\n                        <th>Bolt<br><span>(Inch)<\/span><\/th>\r\n                    <\/tr>\r\n                <\/thead>\r\n                <tbody>\r\n                    <tr><td>4\"<\/td><td>9.00<\/td><td class=\"col-secondary\">4.57<\/td><td class=\"col-secondary\">0.625<\/td><td class=\"col-highlight\">7.50<\/td><td>8<\/td><td>5\/8\"<\/td><\/tr>\r\n                    <tr><td>6\"<\/td><td>11.00<\/td><td class=\"col-secondary\">6.72<\/td><td class=\"col-secondary\">0.688<\/td><td class=\"col-highlight\">9.50<\/td><td>8<\/td><td>3\/4\"<\/td><\/tr>\r\n                    <tr><td>8\"<\/td><td>13.50<\/td><td class=\"col-secondary\">8.72<\/td><td class=\"col-secondary\">0.688<\/td><td class=\"col-highlight\">11.75<\/td><td>8<\/td><td>3\/4\"<\/td><\/tr>\r\n                    <tr><td>10\"<\/td><td>16.00<\/td><td class=\"col-secondary\">10.88<\/td><td class=\"col-secondary\">0.688<\/td><td class=\"col-highlight\">14.25<\/td><td>12<\/td><td>7\/8\"<\/td><\/tr>\r\n                    <tr><td>12\"<\/td><td>19.00<\/td><td class=\"col-secondary\">12.88<\/td><td class=\"col-secondary\">0.812<\/td><td class=\"col-highlight\">17.00<\/td><td>12<\/td><td>7\/8\"<\/td><\/tr>\r\n                <\/tbody>\r\n            <\/table>\r\n        <\/div>\r\n    <\/div>\r\n\r\n    <div id=\"pl-bs\" class=\"sh-content\">\r\n        <div class=\"sh-table-wrapper\">\r\n            <h3>BS 10 Table E (Historic Plate)<\/h3>\r\n            <table class=\"sh-table\">\r\n                <thead>\r\n                    <tr>\r\n                        <th>NPS<br><span>(Size)<\/span><\/th>\r\n                        <th>Outside Dia (D)<br><span>(mm)<\/span><\/th>\r\n                        <th class=\"col-secondary\">Thickness<br><span>(mm)<\/span><\/th>\r\n                        <th class=\"th-red-highlight\">Bolt Circle (PCD)<br><span>(mm)<\/span><\/th>\r\n                        <th>Holes<br><span>(Qty)<\/span><\/th>\r\n                        <th>Bolt Dia<br><span>(Inch)<\/span><\/th>\r\n                    <\/tr>\r\n                <\/thead>\r\n                <tbody>\r\n                    <tr><td>1\"<\/td><td>114.3<\/td><td class=\"col-secondary\">7.1<\/td><td class=\"col-highlight\">82.6<\/td><td>4<\/td><td>1\/2\"<\/td><\/tr>\r\n                    <tr><td>2\"<\/td><td>152.4<\/td><td class=\"col-secondary\">8.7<\/td><td class=\"col-highlight\">114.3<\/td><td>4<\/td><td>5\/8\"<\/td><\/tr>\r\n                    <tr><td>3\"<\/td><td>184.2<\/td><td class=\"col-secondary\">11.1<\/td><td class=\"col-highlight\">146.1<\/td><td>4<\/td><td>5\/8\"<\/td><\/tr>\r\n                    <tr><td>4\"<\/td><td>215.9<\/td><td class=\"col-secondary\">12.7<\/td><td class=\"col-highlight\">177.8<\/td><td>8<\/td><td>5\/8\"<\/td><\/tr>\r\n                    <tr><td>6\"<\/td><td>279.4<\/td><td class=\"col-secondary\">17.5<\/td><td class=\"col-highlight\">235.0<\/td><td>8<\/td><td>3\/4\"<\/td><\/tr>\r\n                    <tr><td>8\"<\/td><td>336.6<\/td><td class=\"col-secondary\">19.0<\/td><td class=\"col-highlight\">292.1<\/td><td>8<\/td><td>3\/4\"<\/td><\/tr>\r\n                <\/tbody>\r\n            <\/table>\r\n        <\/div>\r\n        <div class=\"sh-cta-block\">\r\n            <p>Looking for SANS 1123 or Table D dimensions?<\/p>\r\n            <a href=\"\/contact-us\" class=\"sh-cta-btn\">Download Full BS\/SABS Table<\/a>\r\n        <\/div>\r\n    <\/div>\r\n\r\n    <div id=\"pl-vs\" class=\"sh-content\">\r\n        <div class=\"sh-cta-block\" style=\"padding: 30px; background:white; text-align:left;\">\r\n            <h3 style=\"color:#003366; border-bottom:1px solid #eee; padding-bottom:10px;\">Tech Note: Plate (Type 01) vs Slip On (Type 12)<\/h3>\r\n            \r\n            <div style=\"display:flex; flex-wrap:wrap; gap:20px; margin-top:20px;\">\r\n                <div style=\"flex:1; min-width:250px; background:#f9f9f9; padding:15px; border-radius:4px; border-left: 4px solid #555;\">\r\n                    <strong style=\"color:#2c3e50;\">Plate Flange (Type 01 \/ SOP)<\/strong>\r\n                    <ul style=\"font-size:14px; color:#555; margin-top:10px; padding-left:20px;\">\r\n                        <li><strong>Structure:<\/strong> Flat disc, no hub.<\/li>\r\n                        <li><strong>Welding:<\/strong> Double fillet weld (inside & outside).<\/li>\r\n                        <li><strong>Use Case:<\/strong> Low pressure, water pipelines, cost-critical projects.<\/li>\r\n                    <\/ul>\r\n                <\/div>\r\n                \r\n                <div style=\"flex:1; min-width:250px; background:#f4f8fb; padding:15px; border-radius:4px; border-left: 4px solid #003366;\">\r\n                    <strong style=\"color:#003366;\">Slip On Flange (Type 12 \/ SOH)<\/strong>\r\n                    <ul style=\"font-size:14px; color:#555; margin-top:10px; padding-left:20px;\">\r\n                        <li><strong>Structure:<\/strong> Has a tapered hub for reinforcement.<\/li>\r\n                        <li><strong>Pressure:<\/strong> Suitable for higher pressures (up to Class 1500).<\/li>\r\n                        <li><strong>Use Case:<\/strong> Oil & Gas, Process Piping, ASME B16.5 standards.<\/li>\r\n                    <\/ul>\r\n                <\/div>\r\n            <\/div>\r\n\r\n            <p style=\"font-size:13px; color:#666; margin-top:15px; text-align:center;\">\r\n                Not sure which flange type fits your pipeline? Our engineers can balance stress, pressure and cost for your specific project.\r\n            <\/p>\r\n            \r\n            <div style=\"text-align:center; margin-top:25px;\">\r\n                <a href=\"https:\/\/sunhyings.com\/stainless-steel-flange\/slip-on-flanges\/\" class=\"sh-cta-btn\">View Forged Slip On (Type 12)<\/a>\r\n            <\/div>\r\n        <\/div>\r\n    <\/div>\r\n\r\n<\/section>\r\n\r\n<script>\r\n    function openTab(evt, tabName) {\r\n        var i, content, tablinks;\r\n        content = document.getElementsByClassName(\"sh-content\");\r\n        for (i = 0; i < content.length; i++) {\r\n            content[i].style.display = \"none\";\r\n            content[i].classList.remove(\"active-content\");\r\n        }\r\n        tablinks = document.getElementsByClassName(\"sh-tab-btn\");\r\n        for (i = 0; i < tablinks.length; i++) {\r\n            tablinks[i].className = tablinks[i].className.replace(\" active\", \"\");\r\n        }\r\n        document.getElementById(tabName).style.display = \"block\";\r\n        setTimeout(() => {\r\n            document.getElementById(tabName).classList.add(\"active-content\");\r\n        }, 10);\r\n        evt.currentTarget.className += \" active\";\r\n    }\r\n<\/script>\r\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-093d5e2 e-con-full e-flex e-con e-parent\" data-id=\"093d5e2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-38ce825 e-flex e-con-boxed e-con e-child\" data-id=\"38ce825\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-a417312 e-con-full e-flex e-con e-child\" data-id=\"a417312\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ba5d2c4 elementor-widget elementor-widget-heading\" data-id=\"ba5d2c4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">When and Where to Use Plate \/  Flat Face Flanges<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2b5c086 elementor-widget elementor-widget-text-editor\" data-id=\"2b5c086\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>1. <strong>Economy Applications (Plate):<\/strong> Since the flange is directly cut from a steel plate, it is the most cost-effective choice for low-pressure, non-critical systems (such as Class 150\/PN16 and below).<\/p><p>Typical Applications: Building water treatment, HVAC (Heating, Ventilation, and Air Conditioning) systems, drainage lines, and general industrial air ducts.<\/p><p>2. <strong>Protecting Brittle Equipment (Flat Face):<\/strong> This is the most important rule of use. When your piping needs to connect to flanges made of brittle materials, a flat face (FF) flange must be used.<\/p><p>Typical Applications: Connecting cast iron valves, pumps, plastic flanges, or fiberglass tanks. The flat face (FF) design, combined with a full-face gasket, distributes bolt pressure evenly, preventing the brittle flange from cracking due to uneven stress.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-62ac2b3 e-con-full e-flex e-con e-parent\" data-id=\"62ac2b3\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-6b79977 e-flex e-con-boxed e-con e-child\" data-id=\"6b79977\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-340f267 e-con-full e-flex e-con e-child\" data-id=\"340f267\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fd44fb4 elementor-widget elementor-widget-heading\" data-id=\"fd44fb4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Plate \/  Flat Face Flanges Installation and Welding Best Practices<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-98f9f4a elementor-widget elementor-widget-text-editor\" data-id=\"98f9f4a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>Welding Best Practice<\/strong><\/p><ul><li><p><b>Always use two fillet welds<\/b> (dual-sided welding).<\/p><\/li><li><p><b>1. Outside Weld:<\/b> Weld the flange hub to the outer pipe wall.<\/p><\/li><li><p><b>2. Inside Weld:<\/b> Weld the flange bore to the pipe end face.<\/p><\/li><\/ul><blockquote><p><b>Note:<\/b> We strongly recommend <i>always<\/i> using both welds. This provides maximum strength and prevents crevice corrosion between the flange and pipe.<\/p><\/blockquote><p><strong>Installation Steps<\/strong><\/p><ol start=\"1\"><li><p><b>Preparation:<\/b> Ensure the Flat Face (FF) and pipe end are clean, dry, and free of rust or scratches.<\/p><\/li><li><p><b>Positioning:<\/b><\/p><ul><li><p>Slide the flange onto the pipe.<\/p><\/li><li><p><b>Crucial:<\/b> Set the pipe end back <b>~3mm (1\/8&#8243;)<\/b> from the flange&#8217;s inner face. This creates space for the internal fillet weld.<\/p><\/li><\/ul><\/li><li><p><b>Alignment:<\/b> Square the flange face 90\u00b0 (perpendicular) to the pipe and fix it with tack welds.<\/p><\/li><li><p><b>Welding:<\/b> Complete the full welding (outside first, then inside) using a multi-pass technique if needed. Allow to cool.<\/p><\/li><li><p><b>Assembly:<\/b><\/p><ul><li><p>Insert the <b>Full-Face (FF) Gasket<\/b>. (Do NOT use a raised-face gasket).<\/p><\/li><li><p>Tighten bolts gradually using a <b>star pattern<\/b> (criss-cross) to ensure even pressure.<\/p><\/li><\/ul><\/li><\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-61d62de e-con-full e-flex e-con e-parent\" data-id=\"61d62de\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-c468641 e-flex e-con-boxed e-con e-child\" data-id=\"c468641\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-218ca50 e-con-full e-flex e-con e-child\" data-id=\"218ca50\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fadc803 elementor-widget elementor-widget-heading\" data-id=\"fadc803\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Required Mating Components<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7871bd4 elementor-widget elementor-widget-text-editor\" data-id=\"7871bd4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>\u00a0To ensure a safe, leak-free installation of your Plate Flat Face (FF) Flanges, the correct mating components are required. Please ensure you source the following items:<\/p><ul><li><p><b>Gasket Type:<\/b> <b>Full-Face Gasket<\/b> A gasket that covers the entire flange face (conforming to ASME B16.21) is <b>mandatory<\/b>. Common materials include Non-Asbestos, EPDM, or Rubber, depending on your service media.<\/p><blockquote><p><b>Warning:<\/b> DO NOT use a Raised Face (RF) gasket. This will cause a sealing failure and potential damage.<\/p><\/blockquote><\/li><li><p><b>Bolting:<\/b> <b>Flange Bolt &amp; Nut Kits<\/b> Standard stud bolts and nuts are required to complete the assembly. Common materials include Carbon Steel (A193 B7 \/ A194 2H) or Stainless Steel (SS304 \/ SS316).<\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5338199 e-flex e-con-boxed e-con e-parent\" data-id=\"5338199\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-582a8c9 elementor-widget elementor-widget-heading\" data-id=\"582a8c9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Flat Face (FF) vs. Raised Face (RF): Key Differences<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-952e422 elementor-widget elementor-widget-text-editor\" data-id=\"952e422\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Understanding the distinction is critical for proper selection. While a Raised Face (RF) flange has a small raised surface for sealing, an FF flange is completely flat. This fundamental design difference dictates their use:<\/p><ul><li><strong>Gasket Type:<\/strong> <strong>FF flanges<\/strong> require a soft, <strong>full-face gasket<\/strong> (like rubber or non-asbestos) that covers the entire flange surface.<\/li><li><strong>Pressure Class:<\/strong> <strong>RF flanges<\/strong> are used for higher-pressure\/temperature applications (typically Class 300 and up) as they concentrate pressure on a smaller gasket area.<\/li><li><strong>Mating Flanges:<\/strong> <strong>Crucial Warning:<\/strong> Never bolt a Raised Face (RF) flange to a Flat Face (FF) flange. The high-point pressure from the RF flange <strong>will crack<\/strong> the FF flange.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-b0efad9 e-flex e-con-boxed e-con e-parent\" data-id=\"b0efad9\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-dae5fcb elementor-widget elementor-widget-html\" data-id=\"dae5fcb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<style>\r\n  .sunhy-relind{--accent:#1E51A2;--card:#f3f5f7;--text:#111;font-family:inherit;}\r\n  .sunhy-relind .wrap{max-width:1600px;margin:0 auto;padding:36px 16px;}\r\n  .sunhy-relind .title{margin:0;text-align:center;font-size:40px;font-weight:700;color:#1E51A2;}\r\n  .sunhy-relind .underline{width:44px;height:4px;background:var(--accent);margin:10px auto 30px;border-radius:8px;}\r\n  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fill='none' stroke='%231B5DC8' stroke-width='2.2' d='M42 30c0 6-5 8-5 15a9 9 0 0 0 18 0c0-7-5-9-5-15'\/%3E%3C\/svg%3E\");\r\n  }\r\n  .sunhy-relind .icon{width:56px;height:56px;display:flex;align-items:center;justify-content:center;margin-bottom:14px;}\r\n  .sunhy-relind svg{stroke:var(--accent);}\r\n  .sunhy-relind .label{color:var(--accent);font-weight:600;font-size:15px;text-align:center;line-height:1.2;}\r\n\r\n  @media (max-width:1100px){ .sunhy-relind .grid{grid-template-columns:repeat(4,1fr);} }\r\n  @media (max-width:860px){ .sunhy-relind .grid{grid-template-columns:repeat(3,1fr);} .sunhy-relind .title{font-size:32px;} }\r\n  @media (max-width:560px){ .sunhy-relind .grid{grid-template-columns:repeat(2,1fr);} }\r\n<\/style>\r\n\r\n<section class=\"sunhy-relind sunhy-relind-flanges\" aria-label=\"Related Industries & Applications - Flanges\">\r\n  <div class=\"wrap\">\r\n    <h2 class=\"title\">RELATED INDUSTRIES &amp; APPLICATIONS<\/h2>\r\n    <div class=\"underline\"><\/div>\r\n\r\n    <div class=\"grid\">\r\n      <a class=\"card\" href=\"#\"><div class=\"icon\">\r\n        <!-- Upstream -->\r\n        <svg viewBox=\"0 0 64 64\" width=\"56\" height=\"56\" fill=\"none\" stroke-width=\"2.6\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\r\n          <path d=\"M14 48l10-22 12 6 14-14 4 4-14 14 6 12\"\/><path d=\"M18 48h30\"\/>\r\n        <\/svg><\/div><div class=\"label\">Upstream (Exploration)<\/div><\/a>\r\n\r\n      <a class=\"card\" href=\"#\"><div class=\"icon\">\r\n        <!-- Downstream -->\r\n        <svg viewBox=\"0 0 64 64\" width=\"56\" height=\"56\" fill=\"none\" stroke-width=\"2.6\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\r\n          <path d=\"M12 52h40\"\/><path d=\"M16 52V28l10 6V28l10 6V24l8 4v24\"\/><path d=\"M42 18v6\"\/>\r\n        <\/svg><\/div><div class=\"label\">Downstream (Refining)<\/div><\/a>\r\n\r\n      <a class=\"card\" href=\"#\"><div class=\"icon\">\r\n        <!-- Offshore -->\r\n        <svg viewBox=\"0 0 64 64\" width=\"56\" height=\"56\" fill=\"none\" stroke-width=\"2.6\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\r\n          <path d=\"M18 46h28\"\/><path d=\"M22 46l6-24h8l6 24\"\/><path d=\"M20 30h24\"\/><path d=\"M14 52h36\"\/>\r\n        <\/svg><\/div><div class=\"label\">Offshore Platforms<\/div><\/a>\r\n\r\n      <a class=\"card\" href=\"#\"><div class=\"icon\">\r\n        <!-- Power generation -->\r\n        <svg viewBox=\"0 0 64 64\" width=\"56\" height=\"56\" fill=\"none\" stroke-width=\"2.6\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\r\n          <path d=\"M14 52h36\"\/><path d=\"M18 52V28h10v22\"\/><path d=\"M30 52V22h10v30\"\/><path d=\"M42 52V32h6v20\"\/>\r\n        <\/svg><\/div><div class=\"label\">Power Generation<\/div><\/a>\r\n\r\n      <a class=\"card\" href=\"#\"><div class=\"icon\">\r\n        <!-- Nuclear -->\r\n        <svg viewBox=\"0 0 64 64\" width=\"56\" height=\"56\" fill=\"none\" stroke-width=\"2.6\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\r\n          <path d=\"M32 28v10\"\/><path d=\"M32 18h0\"\/><path d=\"M32 32l16-4c0 10-6 18-16 20-10-2-16-10-16-20z\"\/><path d=\"M32 32l-16-4\"\/><path d=\"M32 32l0-16\"\/>\r\n        <\/svg><\/div><div class=\"label\">Nuclear Power<\/div><\/a>\r\n\r\n      <a class=\"card\" href=\"#\"><div class=\"icon\">\r\n        <!-- Thermal -->\r\n        <svg viewBox=\"0 0 64 64\" width=\"56\" height=\"56\" fill=\"none\" stroke-width=\"2.6\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\r\n          <path d=\"M24 52V20h16v32\"\/><path d=\"M22 20h20\"\/><path d=\"M28 30h8\"\/><path d=\"M28 38h8\"\/>\r\n        <\/svg><\/div><div class=\"label\">Thermal Power Plants<\/div><\/a>\r\n\r\n      <a class=\"card\" href=\"#\"><div class=\"icon\">\r\n        <!-- H2 -->\r\n        <svg viewBox=\"0 0 64 64\" width=\"56\" height=\"56\" fill=\"none\" stroke-width=\"2.6\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\r\n          <path d=\"M22 18v28a10 10 0 0 0 20 0V18\"\/><path d=\"M22 30h20\"\/><path d=\"M18 18h28\"\/>\r\n        <\/svg><\/div><div class=\"label\">Hydrogen Energy (H2)<\/div><\/a>\r\n\r\n      <a class=\"card\" href=\"#\"><div class=\"icon\">\r\n        <!-- Solar -->\r\n        <svg viewBox=\"0 0 64 64\" width=\"56\" height=\"56\" fill=\"none\" stroke-width=\"2.6\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\r\n          <path d=\"M22 40l-4 12h28l-4-12z\"\/><path d=\"M22 40h20\"\/><path d=\"M26 18h12\"\/><path d=\"M32 12v6\"\/><path d=\"M22 22l4 4\"\/><path d=\"M42 22l-4 4\"\/>\r\n        <\/svg><\/div><div class=\"label\">Solar &amp; Photovoltaic<\/div><\/a>\r\n\r\n      <a class=\"card\" href=\"#\"><div class=\"icon\">\r\n        <!-- Wind -->\r\n        <svg viewBox=\"0 0 64 64\" width=\"56\" height=\"56\" fill=\"none\" stroke-width=\"2.6\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\r\n          <path d=\"M32 20v34\"\/><path d=\"M32 20l16 6-16 6-16-6z\"\/><path d=\"M26 54h12\"\/>\r\n        <\/svg><\/div><div class=\"label\">Wind Power<\/div><\/a>\r\n\r\n      <a class=\"card\" href=\"#\"><div class=\"icon\">\r\n        <!-- Petrochemical -->\r\n        <svg viewBox=\"0 0 64 64\" width=\"56\" height=\"56\" fill=\"none\" stroke-width=\"2.6\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\r\n          <path d=\"M12 52h40\"\/><path d=\"M16 52V30h10v22\"\/><path d=\"M32 52V24h10v28\"\/><path d=\"M42 18v6\"\/>\r\n        <\/svg><\/div><div class=\"label\">Petrochemical Plants<\/div><\/a>\r\n\r\n      <a class=\"card\" href=\"#\"><div class=\"icon\">\r\n        <!-- Desalination -->\r\n        <svg viewBox=\"0 0 64 64\" width=\"56\" height=\"56\" fill=\"none\" stroke-width=\"2.6\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\r\n          <path d=\"M18 18h28l-10 16v16H28V34z\"\/><path d=\"M22 18l10 16 10-16\"\/>\r\n        <\/svg><\/div><div class=\"label\">Desalination (SWRO)<\/div><\/a>\r\n\r\n      <a class=\"card\" href=\"#\"><div class=\"icon\">\r\n        <!-- Shipbuilding -->\r\n        <svg viewBox=\"0 0 64 64\" width=\"56\" height=\"56\" fill=\"none\" stroke-width=\"2.6\" stroke-linecap=\"round\" stroke-linejoin=\"round\">\r\n          <path d=\"M14 40h36l-6 10H20z\"\/><path d=\"M26 40V26h12v14\"\/><path d=\"M18 50h28\"\/>\r\n        <\/svg><\/div><div class=\"label\">Shipbuilding<\/div><\/a>\r\n    <\/div>\r\n  <\/div>\r\n<\/section>\r\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f56496f e-flex e-con-boxed e-con e-parent\" data-id=\"f56496f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-12a1314 elementor-widget elementor-widget-heading\" data-id=\"12a1314\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Related blog<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-038417c elementor-grid-4 elementor-grid-tablet-2 elementor-grid-mobile-1 elementor-widget elementor-widget-portfolio\" data-id=\"038417c\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;columns&quot;:&quot;4&quot;,&quot;masonry&quot;:&quot;yes&quot;,&quot;row_gap&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:25,&quot;sizes&quot;:[]},&quot;columns_tablet&quot;:&quot;2&quot;,&quot;columns_mobile&quot;:&quot;1&quot;,&quot;item_gap&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"portfolio.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-portfolio elementor-grid elementor-posts-container\" role=\"list\">\n\t\t\t\t<article class=\"elementor-portfolio-item elementor-post  post-7726 post type-post status-publish format-standard has-post-thumbnail hentry category-selection-comparison tag-face-ff tag-face-rf tag-face-rtj tag-pf-flanges tag-topic-comparison tag-topic-joint-integrity tag-topic-selection\" role=\"listitem\">\n\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/sunhyings.com\/pt\/blog\/rf-vs-ff-vs-rtj-flanges-selection-guide-key-differences\/\">\n\t\t\t\t<div class=\"elementor-portfolio-item__img elementor-post__thumbnail\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"768\" src=\"https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/12\/Sourcing-Guide-Key-Differences-Between-RF-vs-FF-vs-RTJ-Flanges-768x768.webp\" class=\"attachment-medium_large size-medium_large wp-image-7730\" alt=\"Sourcing Guide: Key Differences Between RF vs FF vs RTJ Flanges\" srcset=\"https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/12\/Sourcing-Guide-Key-Differences-Between-RF-vs-FF-vs-RTJ-Flanges-768x768.webp 768w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/12\/Sourcing-Guide-Key-Differences-Between-RF-vs-FF-vs-RTJ-Flanges-800x800.webp 800w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/12\/Sourcing-Guide-Key-Differences-Between-RF-vs-FF-vs-RTJ-Flanges-1024x1024.webp 1024w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/12\/Sourcing-Guide-Key-Differences-Between-RF-vs-FF-vs-RTJ-Flanges-300x300.webp 300w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/12\/Sourcing-Guide-Key-Differences-Between-RF-vs-FF-vs-RTJ-Flanges-1536x1536.webp 1536w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/12\/Sourcing-Guide-Key-Differences-Between-RF-vs-FF-vs-RTJ-Flanges-12x12.webp 12w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/12\/Sourcing-Guide-Key-Differences-Between-RF-vs-FF-vs-RTJ-Flanges.webp 2048w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t<\/div>\n\t\t\t\t<div class=\"elementor-portfolio-item__overlay\">\n\t\t\t\t<h3 class=\"elementor-portfolio-item__title\">\n\t\tSourcing Guide: Key Differences Between RF vs FF vs RTJ Flanges\t\t<\/h3>\n\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t<\/article>\n\t\t\t\t<article class=\"elementor-portfolio-item elementor-post  post-1869 post type-post status-publish format-standard has-post-thumbnail hentry category-selection-comparison tag-face-ff tag-face-rf tag-pf-flanges tag-topic-comparison tag-topic-selection\" role=\"listitem\">\n\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/sunhyings.com\/pt\/blog\/raised-face-vs-flat-face-flange-differences-comparison\/\">\n\t\t\t\t<div class=\"elementor-portfolio-item__img elementor-post__thumbnail\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"768\" src=\"https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/Raised-Face-vs-Flat-Face-Flange-Whats-The-Difference-768x768.webp\" class=\"attachment-medium_large size-medium_large wp-image-8713\" alt=\"Raised Face vs Flat Face Flange: What&#039;s The Difference?\" srcset=\"https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/Raised-Face-vs-Flat-Face-Flange-Whats-The-Difference-768x768.webp 768w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/Raised-Face-vs-Flat-Face-Flange-Whats-The-Difference-800x800.webp 800w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/Raised-Face-vs-Flat-Face-Flange-Whats-The-Difference-300x300.webp 300w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/Raised-Face-vs-Flat-Face-Flange-Whats-The-Difference-12x12.webp 12w, https:\/\/sunhyings.com\/wp-content\/uploads\/2025\/10\/Raised-Face-vs-Flat-Face-Flange-Whats-The-Difference.webp 1024w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t<\/div>\n\t\t\t\t<div class=\"elementor-portfolio-item__overlay\">\n\t\t\t\t<h3 class=\"elementor-portfolio-item__title\">\n\t\tRaised Face (RF) vs Flat Face (FF) Flange: Critical Differences &amp; Connection Guide\t\t<\/h3>\n\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t<\/article>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6b857c6 e-flex e-con-boxed e-con e-parent\" data-id=\"6b857c6\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-75b1c68 e-con-full e-flex e-con e-child\" data-id=\"75b1c68\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-780c02c elementor-widget elementor-widget-heading\" data-id=\"780c02c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">FAQ<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9ec8a2b elementor-widget__width-initial elementor-widget elementor-widget-toggle\" data-id=\"9ec8a2b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"toggle.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-toggle\">\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<h5 id=\"elementor-tab-title-1661\" class=\"elementor-tab-title\" data-tab=\"1\" role=\"button\" aria-controls=\"elementor-tab-content-1661\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-right\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" id=\"a\" width=\"43.104\" height=\"45.888\" viewBox=\"0 0 43.104 45.888\"><polygon points=\"24.096 20.16 24.096 0 19.008 0 19.008 20.16 0 20.16 0 25.248 19.008 25.248 19.008 45.888 24.096 45.888 24.096 25.248 43.104 25.248 43.104 20.16 24.096 20.16\"><\/polygon><\/svg><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" id=\"a\" width=\"43\" height=\"6\" viewBox=\"0 0 43 6\"><rect width=\"43\" height=\"6\"><\/rect><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">can you connect a raised face flange to flat face<\/a>\n\t\t\t\t\t<\/h5>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-1661\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"1\" role=\"region\" aria-labelledby=\"elementor-tab-title-1661\"><p><b>No. This is a hazardous practice and explicitly prohibited by piping codes.<\/b><\/p><p>According to industry standards like ASME B31.1, a Raised Face (RF) flange <b>must never be bolted directly to a Flat Face (FF) flange<\/b> , especially when the FF flange is made of a brittle material like cast iron.<span class=\"button-container hide-from-message-actions ng-star-inserted\"> \u00a0<\/span><\/p><ul><li><p><b>Failure Mode:<\/b> Mating these two types creates an <b>unsupported gap<\/b> between the flanges. When the bolts are tightened, the RF flange&#8217;s raised ring concentrates all the force on a small area of the FF flange. This acts as a prying force, creating a <i>bending moment<\/i> that will <b>fracture or crack<\/b> the brittle flat face flange.<span class=\"button-container hide-from-message-actions ng-star-inserted\">\u00a0<\/span><\/p><\/li><li><p><b>Correct Procedure:<\/b> The only code-compliant solution (e.g., when connecting a new steel pipe to an old cast iron valve) is to <b>machine off (remove) the raised face<\/b> from the steel flange, converting it into a flat face flange. After machining, a <b>full-face gasket<\/b> must be used for the connection.<span class=\"button-container hide-from-message-actions ng-star-inserted\">\u00a0<\/span><\/p><div class=\"container ng-tns-c2591737816-2672 hide\"><div class=\"carousel-container ng-tns-c2591737816-2672\">\u00a0<\/div><\/div><\/li><\/ul><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<h5 id=\"elementor-tab-title-1662\" class=\"elementor-tab-title\" data-tab=\"2\" role=\"button\" aria-controls=\"elementor-tab-content-1662\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-right\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" id=\"a\" width=\"43.104\" height=\"45.888\" viewBox=\"0 0 43.104 45.888\"><polygon points=\"24.096 20.16 24.096 0 19.008 0 19.008 20.16 0 20.16 0 25.248 19.008 25.248 19.008 45.888 24.096 45.888 24.096 25.248 43.104 25.248 43.104 20.16 24.096 20.16\"><\/polygon><\/svg><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" id=\"a\" width=\"43\" height=\"6\" viewBox=\"0 0 43 6\"><rect width=\"43\" height=\"6\"><\/rect><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">why use flat face flanges<\/a>\n\t\t\t\t\t<\/h5>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-1662\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"2\" role=\"region\" aria-labelledby=\"elementor-tab-title-1662\"><p>The primary reason to use a Flat Face (FF) flange is to <b>prevent the cracking or fracture of brittle flange materials<\/b> when bolts are tightened.<span class=\"button-container hide-from-message-actions ng-star-inserted\">\u00a0<\/span><\/p><ul><li><p><b>Engineering Principle (Why):<\/b> The flat face design is intended to <b>prevent a bending moment<\/b> by distributing the bolt load <i>evenly<\/i> across the entire gasket surface. This even pressure is critical for materials with low ductility, such as <b>cast iron, PVC, or fiberglass (GRP)<\/b>.<span class=\"button-container hide-from-message-actions ng-star-inserted\">\u00a0<\/span><\/p><\/li><li><p><b>Failure Prevention:<\/b> A Raised Face (RF) flange, by contrast, concentrates all the pressure on a small, raised ring. This concentrated load would create a bending force and stress concentration that could easily <b>crack or break<\/b> a brittle flange.<span class=\"button-container hide-from-message-actions ng-star-inserted\">\u00a0<\/span><\/p><\/li><li><p><b>Application (When):<\/b> Because of this design, FF flanges are used in <b>low-pressure and low-temperature<\/b> systems. Common applications include water treatment plants , HVAC systems , pump suctions , and fire protection lines. They are most common in Class 125 and Class 150 pressure ratings.<\/p><div class=\"container ng-tns-c2591737816-2669 hide\"><div class=\"carousel-container ng-tns-c2591737816-2669\">\u00a0<\/div><\/div><\/li><\/ul><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-toggle-item\">\n\t\t\t\t\t<h5 id=\"elementor-tab-title-1663\" class=\"elementor-tab-title\" data-tab=\"3\" role=\"button\" aria-controls=\"elementor-tab-content-1663\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon elementor-toggle-icon-right\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-closed\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" id=\"a\" width=\"43.104\" height=\"45.888\" viewBox=\"0 0 43.104 45.888\"><polygon points=\"24.096 20.16 24.096 0 19.008 0 19.008 20.16 0 20.16 0 25.248 19.008 25.248 19.008 45.888 24.096 45.888 24.096 25.248 43.104 25.248 43.104 20.16 24.096 20.16\"><\/polygon><\/svg><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-toggle-icon-opened\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" id=\"a\" width=\"43\" height=\"6\" viewBox=\"0 0 43 6\"><rect width=\"43\" height=\"6\"><\/rect><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-toggle-title\" tabindex=\"0\">can you use spiral wound gasket on flat face flange<\/a>\n\t\t\t\t\t<\/h5>\n\n\t\t\t\t\t<div id=\"elementor-tab-content-1663\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"3\" role=\"region\" aria-labelledby=\"elementor-tab-title-1663\"><div id=\"model-response-message-contentr_6cfc56674dab5376\" class=\"markdown markdown-main-panel stronger enable-updated-hr-color\" dir=\"ltr\" aria-live=\"polite\" aria-busy=\"false\"><p><b>It is not recommended, unless you use a specially designed &#8220;Low Stress&#8221; version.<\/b><\/p><ul><li><p><b>Standard Spiral Wound Gaskets (No):<\/b> A <i>standard<\/i> spiral wound gasket (SWG) should not be used on a typical flat face flange. SWGs are semi-metallic gaskets that require <b>very high bolt load<\/b> (seating stress) to compress their &#8220;V&#8221; shaped metal windings and create a seal. This high compressive force is necessary for the gasket to function but will likely <b>exceed the structural limit of the brittle or low-strength FF flange<\/b>, causing it to crack. The standard, correct gasket for an FF flange is a non-metallic (soft) <b>full-face gasket<\/b>.<span class=\"button-container hide-from-message-actions ng-star-inserted\"> \u00a0<\/span><\/p><div class=\"container ng-tns-c2591737816-2673 hide\"><div class=\"carousel-container ng-tns-c2591737816-2673\">\u00a0<\/div><\/div><\/li><li><p><b>Special Exception (Yes, with conditions):<\/b> Gasket manufacturers have designed <b>&#8220;Low Stress&#8221; (LS) spiral wound gaskets<\/b> (e.g., Style WR-LS) specifically for this situation. In these special gaskets, the <i>soft filler material<\/i> (like flexible graphite) protrudes above the metal windings. This allows the gasket to achieve a seal at a <b>very low bolt load<\/b>, making it safe and effective for use on flat face and other low-strength flanges.<span class=\"button-container hide-from-message-actions ng-star-inserted\"> \u00a0<\/span><\/p><div class=\"container ng-tns-c2591737816-2674 hide\"><div class=\"carousel-container ng-tns-c2591737816-2674\">\u00a0<\/div><\/div><\/li><\/ul><\/div><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<script type=\"application\/ld+json\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"can you connect a raised face flange to flat face\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<p><b>No. This is a hazardous practice and explicitly prohibited by piping codes.<\\\/b><\\\/p><p>According to industry standards like ASME B31.1, a Raised Face (RF) flange <b>must never be bolted directly to a Flat Face (FF) flange<\\\/b> , especially when the FF flange is made of a brittle material like cast iron.<span class=\\\"button-container hide-from-message-actions ng-star-inserted\\\"> \\u00a0<\\\/span><\\\/p><ul><li><p><b>Failure Mode:<\\\/b> Mating these two types creates an <b>unsupported gap<\\\/b> between the flanges. When the bolts are tightened, the RF flange&#8217;s raised ring concentrates all the force on a small area of the FF flange. This acts as a prying force, creating a <i>bending moment<\\\/i> that will <b>fracture or crack<\\\/b> the brittle flat face flange.<span class=\\\"button-container hide-from-message-actions ng-star-inserted\\\">\\u00a0<\\\/span><\\\/p><\\\/li><li><p><b>Correct Procedure:<\\\/b> The only code-compliant solution (e.g., when connecting a new steel pipe to an old cast iron valve) is to <b>machine off (remove) the raised face<\\\/b> from the steel flange, converting it into a flat face flange. After machining, a <b>full-face gasket<\\\/b> must be used for the connection.<span class=\\\"button-container hide-from-message-actions ng-star-inserted\\\">\\u00a0<\\\/span><\\\/p><div class=\\\"container ng-tns-c2591737816-2672 hide\\\"><div class=\\\"carousel-container ng-tns-c2591737816-2672\\\">\\u00a0<\\\/div><\\\/div><\\\/li><\\\/ul>\"}},{\"@type\":\"Question\",\"name\":\"why use flat face flanges\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<p>The primary reason to use a Flat Face (FF) flange is to <b>prevent the cracking or fracture of brittle flange materials<\\\/b> when bolts are tightened.<span class=\\\"button-container hide-from-message-actions ng-star-inserted\\\">\\u00a0<\\\/span><\\\/p><ul><li><p><b>Engineering Principle (Why):<\\\/b> The flat face design is intended to <b>prevent a bending moment<\\\/b> by distributing the bolt load <i>evenly<\\\/i> across the entire gasket surface. This even pressure is critical for materials with low ductility, such as <b>cast iron, PVC, or fiberglass (GRP)<\\\/b>.<span class=\\\"button-container hide-from-message-actions ng-star-inserted\\\">\\u00a0<\\\/span><\\\/p><\\\/li><li><p><b>Failure Prevention:<\\\/b> A Raised Face (RF) flange, by contrast, concentrates all the pressure on a small, raised ring. This concentrated load would create a bending force and stress concentration that could easily <b>crack or break<\\\/b> a brittle flange.<span class=\\\"button-container hide-from-message-actions ng-star-inserted\\\">\\u00a0<\\\/span><\\\/p><\\\/li><li><p><b>Application (When):<\\\/b> Because of this design, FF flanges are used in <b>low-pressure and low-temperature<\\\/b> systems. Common applications include water treatment plants , HVAC systems , pump suctions , and fire protection lines. They are most common in Class 125 and Class 150 pressure ratings.<\\\/p><div class=\\\"container ng-tns-c2591737816-2669 hide\\\"><div class=\\\"carousel-container ng-tns-c2591737816-2669\\\">\\u00a0<\\\/div><\\\/div><\\\/li><\\\/ul>\"}},{\"@type\":\"Question\",\"name\":\"can you use spiral wound gasket on flat face flange\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<div id=\\\"model-response-message-contentr_6cfc56674dab5376\\\" class=\\\"markdown markdown-main-panel stronger enable-updated-hr-color\\\" dir=\\\"ltr\\\" aria-live=\\\"polite\\\" aria-busy=\\\"false\\\"><p><b>It is not recommended, unless you use a specially designed &#8220;Low Stress&#8221; version.<\\\/b><\\\/p><ul><li><p><b>Standard Spiral Wound Gaskets (No):<\\\/b> A <i>standard<\\\/i> spiral wound gasket (SWG) should not be used on a typical flat face flange. SWGs are semi-metallic gaskets that require <b>very high bolt load<\\\/b> (seating stress) to compress their &#8220;V&#8221; shaped metal windings and create a seal. This high compressive force is necessary for the gasket to function but will likely <b>exceed the structural limit of the brittle or low-strength FF flange<\\\/b>, causing it to crack. The standard, correct gasket for an FF flange is a non-metallic (soft) <b>full-face gasket<\\\/b>.<span class=\\\"button-container hide-from-message-actions ng-star-inserted\\\"> \\u00a0<\\\/span><\\\/p><div class=\\\"container ng-tns-c2591737816-2673 hide\\\"><div class=\\\"carousel-container ng-tns-c2591737816-2673\\\">\\u00a0<\\\/div><\\\/div><\\\/li><li><p><b>Special Exception (Yes, with conditions):<\\\/b> Gasket manufacturers have designed <b>&#8220;Low Stress&#8221; (LS) spiral wound gaskets<\\\/b> (e.g., Style WR-LS) specifically for this situation. In these special gaskets, the <i>soft filler material<\\\/i> (like flexible graphite) protrudes above the metal windings. This allows the gasket to achieve a seal at a <b>very low bolt load<\\\/b>, making it safe and effective for use on flat face and other low-strength flanges.<span class=\\\"button-container hide-from-message-actions ng-star-inserted\\\"> \\u00a0<\\\/span><\\\/p><div class=\\\"container ng-tns-c2591737816-2674 hide\\\"><div class=\\\"carousel-container ng-tns-c2591737816-2674\\\">\\u00a0<\\\/div><\\\/div><\\\/li><\\\/ul><\\\/div>\"}}]}<\/script>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a4a3d19 e-con-full e-flex e-con e-parent\" data-id=\"a4a3d19\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-182ea61 e-flex e-con-boxed e-con e-child\" data-id=\"182ea61\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-40f251f 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elementor-size-md  elementor-field-textual\" placeholder=\"Phone Number*\" required=\"required\" pattern=\"[0-9()#&amp;+*-=.]+\" title=\"Only numbers and phone characters (#, -, *, etc) are accepted.\">\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-email elementor-field-group elementor-column elementor-field-group-email elementor-col-50 elementor-field-required\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-email\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tBusiness Email\t\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"email\" name=\"form_fields[email]\" id=\"form-field-email\" class=\"elementor-field elementor-size-md  elementor-field-textual\" placeholder=\"Business Email*\" required=\"required\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-textarea elementor-field-group elementor-column elementor-field-group-message elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-message\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tMessage\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t<textarea class=\"elementor-field-textual elementor-field  elementor-size-md\" name=\"form_fields[message]\" id=\"form-field-message\" rows=\"3\" placeholder=\"Please specify the flange type (e.g., Slip-On, Blind) and the required standard\/material\/rating (e.g., EN 1092-1, DIN, ASME B16.5, 316L, 300#).\"><\/textarea>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-recaptcha elementor-field-group elementor-column elementor-field-group-field_58105f7 elementor-col-100\">\n\t\t\t\t\t<div class=\"elementor-field\" id=\"form-field-field_58105f7\"><div class=\"elementor-g-recaptcha\" data-sitekey=\"6Le04PwrAAAAABSse9pF22Cy1dSMz4P8HEf9l7O5\" data-type=\"v2_checkbox\" data-theme=\"light\" data-size=\"normal\"><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-group elementor-column elementor-field-type-submit elementor-col-100 e-form__buttons\">\n\t\t\t\t\t<button class=\"elementor-button elementor-size-md elementor-animation-grow\" type=\"submit\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Submit<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/button>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/form>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Plate Flat Face (FF) Flanges &#8211; ASME B16.5 Plate Flat Face (FF) flanges are a foundational component for low-pressure piping systems, designed for applications where a full-face soft gasket is required. As a specialist manufacturer of industrial flanges, Sunhyings produces a comprehensive range of Plate FF Flanges engineered to meet strict ASME B16.5 standards. Our [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":34,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-555","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/sunhyings.com\/pt\/wp-json\/wp\/v2\/pages\/555","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sunhyings.com\/pt\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sunhyings.com\/pt\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sunhyings.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sunhyings.com\/pt\/wp-json\/wp\/v2\/comments?post=555"}],"version-history":[{"count":388,"href":"https:\/\/sunhyings.com\/pt\/wp-json\/wp\/v2\/pages\/555\/revisions"}],"predecessor-version":[{"id":11401,"href":"https:\/\/sunhyings.com\/pt\/wp-json\/wp\/v2\/pages\/555\/revisions\/11401"}],"up":[{"embeddable":true,"href":"https:\/\/sunhyings.com\/pt\/wp-json\/wp\/v2\/pages\/34"}],"wp:attachment":[{"href":"https:\/\/sunhyings.com\/pt\/wp-json\/wp\/v2\/media?parent=555"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}