{"id":15650,"date":"2026-06-15T09:50:00","date_gmt":"2026-06-15T01:50:00","guid":{"rendered":"https:\/\/www.xintaivalves.com\/?p=15650"},"modified":"2026-06-25T12:34:59","modified_gmt":"2026-06-25T04:34:59","slug":"what-difference-double-flanged-vs-lug-butterfly-valves","status":"publish","type":"post","link":"https:\/\/www.xintaivalves.com\/ar\/blog\/butterfly-valve\/what-difference-double-flanged-vs-lug-butterfly-valves\/","title":{"rendered":"\u0635\u0645\u0627\u0645 \u0641\u0631\u0627\u0634\u0629 \u0630\u0648 \u0634\u0641\u0629 \u0645\u0632\u062f\u0648\u062c\u0629 \u0645\u0642\u0627\u0628\u0644 \u0627\u0644\u0646\u0648\u0639 \u0627\u0644\u0645\u0639\u0644\u0642: \u0623\u064a\u0647\u0645\u0627 \u064a\u062d\u062a\u0627\u062c\u0647 \u0646\u0638\u0627\u0645\u0643\u061f"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u062c\u062f\u0648\u0644 \u0627\u0644\u0645\u062d\u062a\u0648\u064a\u0627\u062a<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"\u062a\u0628\u062f\u064a\u0644 \u062c\u062f\u0648\u0644 \u0627\u0644\u0645\u062d\u062a\u0648\u0649\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">\u062a\u0628\u062f\u064a\u0644<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.xintaivalves.com\/ar\/blog\/butterfly-valve\/what-difference-double-flanged-vs-lug-butterfly-valves\/#What_Is_a_Double-Flanged_Butterfly_Valve\" >\u0645\u0627 \u0647\u0648 \u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629 \u0630\u0648 \u0627\u0644\u0634\u0641\u0627\u0647 \u0627\u0644\u0645\u0632\u062f\u0648\u062c\u0629\u061f<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.xintaivalves.com\/ar\/blog\/butterfly-valve\/what-difference-double-flanged-vs-lug-butterfly-valves\/#What_Makes_the_Single_Flange_Butterfly_Valve_Different\" >\u0645\u0627 \u0627\u0644\u0630\u064a \u064a\u0645\u064a\u0632 \u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629 \u0630\u0648 \u0627\u0644\u0634\u0641\u0627\u0647 \u0627\u0644\u0645\u0641\u0631\u062f\u0629\u061f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.xintaivalves.com\/ar\/blog\/butterfly-valve\/what-difference-double-flanged-vs-lug-butterfly-valves\/#Key_Structural_Differences_at_a_Glance\" >\u0627\u0644\u0627\u062e\u062a\u0644\u0627\u0641\u0627\u062a \u0627\u0644\u0647\u064a\u0643\u0644\u064a\u0629 \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629 \u0641\u064a \u0644\u0645\u062d\u0629<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.xintaivalves.com\/ar\/blog\/butterfly-valve\/what-difference-double-flanged-vs-lug-butterfly-valves\/#Pressure_Ratings_Which_Valve_Handles_More\" >\u062a\u0635\u0646\u064a\u0641\u0627\u062a \u0627\u0644\u0636\u063a\u0637: \u0623\u064a \u0635\u0645\u0627\u0645 \u064a\u062a\u062d\u0645\u0644 \u0627\u0644\u0645\u0632\u064a\u062f\u061f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.xintaivalves.com\/ar\/blog\/butterfly-valve\/what-difference-double-flanged-vs-lug-butterfly-valves\/#Double-Flanged_Butterfly_Valve_Sizes_Dimensions_and_Bolting\" >\u0623\u062d\u062c\u0627\u0645 \u0648\u0623\u0628\u0639\u0627\u062f \u0648\u062a\u062b\u0628\u064a\u062a \u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629 \u0630\u0648 \u0627\u0644\u0634\u0641\u0627\u0647 \u0627\u0644\u0645\u0632\u062f\u0648\u062c\u0629<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.xintaivalves.com\/ar\/blog\/butterfly-valve\/what-difference-double-flanged-vs-lug-butterfly-valves\/#Installation_and_Maintenance_Comparison\" >\u0645\u0642\u0627\u0631\u0646\u0629 \u0627\u0644\u062a\u0631\u0643\u064a\u0628 \u0648\u0627\u0644\u0635\u064a\u0627\u0646\u0629<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.xintaivalves.com\/ar\/blog\/butterfly-valve\/what-difference-double-flanged-vs-lug-butterfly-valves\/#Which_Valve_Type_Fits_Your_System\" >\u0623\u064a \u0646\u0648\u0639 \u0645\u0646 \u0627\u0644\u0635\u0645\u0627\u0645\u0627\u062a \u064a\u0646\u0627\u0633\u0628 \u0646\u0638\u0627\u0645\u0643\u061f<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.xintaivalves.com\/ar\/blog\/butterfly-valve\/what-difference-double-flanged-vs-lug-butterfly-valves\/#Choose_a_double-flanged_valve_when\" >\u0627\u062e\u062a\u0631 \u0635\u0645\u0627\u0645\u064b\u0627 \u0630\u0627 \u0634\u0641\u0627\u0647 \u0645\u0632\u062f\u0648\u062c\u0629 \u0639\u0646\u062f\u0645\u0627:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.xintaivalves.com\/ar\/blog\/butterfly-valve\/what-difference-double-flanged-vs-lug-butterfly-valves\/#Choose_a_lug-type_butterfly_valve_when\" >\u0627\u062e\u062a\u0631 \u0635\u0645\u0627\u0645 \u0641\u0631\u0627\u0634\u0629 \u0645\u0646 \u0646\u0648\u0639 \u0627\u0644\u0639\u0631\u0648\u0629 \u0639\u0646\u062f\u0645\u0627:<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.xintaivalves.com\/ar\/blog\/butterfly-valve\/what-difference-double-flanged-vs-lug-butterfly-valves\/#Conclusion\" >\u062e\u0627\u062a\u0645\u0629<\/a><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\">\u0647\u0646\u0627\u0643 \u062d\u0627\u062c\u0629 \u0625\u0644\u0649 \u0623\u0646\u0648\u0627\u0639 \u0645\u062e\u062a\u0644\u0641\u0629 \u0645\u0646 \u0627\u0644\u0635\u0645\u0627\u0645\u0627\u062a \u0641\u064a \u0646\u0638\u0627\u0645\u0643 \u0644\u0623\u0633\u0628\u0627\u0628 \u0645\u062e\u062a\u0644\u0641\u0629. \u064a\u0639\u062a\u0645\u062f \u0627\u0644\u062a\u0645\u064a\u064a\u0632 \u0628\u064a\u0646 \u0635\u0645\u0627\u0645 \u0627\u0644\u0639\u0631\u0648\u0629 \u0648\u0635\u0645\u0627\u0645 \u0627\u0644\u0634\u0641\u0627\u0647 \u0639\u0644\u0649 \u0643\u064a\u0641\u064a\u0629 \u062a\u062b\u0628\u064a\u062a\u0647\u0645\u0627.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0639\u0646\u062f \u0627\u062e\u062a\u064a\u0627\u0631 \u0645\u0644\u0641 <a href=\"https:\/\/www.xintaivalves.com\/ar\/product\/double-eccentric-butterfly-valves\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>\u0635\u0645\u0627\u0645 \u0641\u0631\u0627\u0634\u0629 \u0645\u0632\u062f\u0648\u062c \u0627\u0644\u0634\u0641\u0629<\/strong><\/a> \u0623\u0648 \u0635\u0645\u0627\u0645 \u0639\u0631\u0648\u0629\u060c \u0636\u0639 \u0641\u064a \u0627\u0639\u062a\u0628\u0627\u0631\u0643 \u0627\u0644\u0646\u0641\u0642\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629 \u0637\u0648\u064a\u0644\u0629 \u0627\u0644\u0623\u062c\u0644. \u064a\u062c\u0628 \u0639\u0644\u064a\u0643 \u062a\u0642\u064a\u064a\u0645 \u0643\u0644 \u0645\u0646 \u062a\u0643\u0627\u0644\u064a\u0641 \u0627\u0644\u062a\u0631\u0643\u064a\u0628 \u0627\u0644\u0623\u0648\u0644\u064a\u0629 \u0648\u0646\u0641\u0642\u0627\u062a \u0627\u0644\u0635\u064a\u0627\u0646\u0629 \u0627\u0644\u0645\u0633\u062a\u0642\u0628\u0644\u064a\u0629.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u062a\u0642\u0627\u0631\u0646 \u0647\u0630\u0647 \u0627\u0644\u0645\u0642\u0627\u0644\u0629 \u0643\u0644\u0627 \u0627\u0644\u0646\u0648\u0639\u064a\u0646 \u0639\u0628\u0631 \u0627\u0644\u062a\u0631\u0643\u064a\u0628\u060c \u0648\u0627\u0644\u062a\u0639\u0627\u0645\u0644 \u0645\u0639 \u0627\u0644\u0636\u063a\u0637\u060c \u0648\u0627\u0644\u062a\u062d\u062f\u064a\u062f\u060c \u0648\u0645\u0644\u0627\u0621\u0645\u0629 \u0627\u0644\u062a\u0637\u0628\u064a\u0642.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Is_a_Double-Flanged_Butterfly_Valve\"><\/span><strong>\u0645\u0627 \u0647\u0648 \u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629 \u0630\u0648 \u0627\u0644\u0634\u0641\u0627\u0647 \u0627\u0644\u0645\u0632\u062f\u0648\u062c\u0629\u061f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u72472-1024x512.webp\" alt=\"\u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629 \u0630\u0648 \u0627\u0644\u062d\u0648\u0627\u0641 \u0627\u0644\u0645\u0632\u062f\u0648\u062c\u0629\" class=\"wp-image-15654\" style=\"width:550px;height:auto\" srcset=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u72472-1024x512.webp 1024w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u72472-300x150.webp 300w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u72472-768x384.webp 768w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u72472-18x9.webp 18w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u72472.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u064a\u062a\u0645\u064a\u0632 \u0635\u0645\u0627\u0645 \u0630\u0648 \u0634\u0641\u0627\u0647 \u0645\u0632\u062f\u0648\u062c\u0629 \u0623\u0648 \u0635\u0645\u0627\u0645 \u0644\u0627 \u0645\u0631\u0643\u0632\u064a \u0645\u0632\u062f\u0648\u062c \u0628\u0634\u0641\u0627\u0647 \u0645\u062a\u0643\u0627\u0645\u0644\u0629 \u0641\u064a \u0643\u0644\u0627 \u0627\u0644\u0637\u0631\u0641\u064a\u0646. \u0647\u0630\u0647 \u062a\u0631\u0628\u0637 \u0645\u0628\u0627\u0634\u0631\u0629 \u0628\u0634\u0641\u0627\u0647 \u062e\u0637 \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u0645\u062c\u0627\u0648\u0631\u0629.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u064a\u0648\u062c\u062f \u0642\u0631\u0635 \u062f\u0648\u0627\u0631 \u0639\u0644\u0649 \u0637\u0648\u0644 \u0645\u062d\u0648\u0631 \u064a\u0646\u0638\u0645 \u062a\u062f\u0641\u0642 \u0627\u0644\u0633\u0627\u0626\u0644. \u064a\u062a\u0645 \u062a\u0648\u0632\u064a\u0639 \u0627\u0644\u0636\u063a\u0637 \u0628\u0627\u0644\u062a\u0633\u0627\u0648\u064a \u0639\u0644\u0649 \u0627\u0644\u0642\u0631\u0635 \u0628\u0623\u0643\u0645\u0644\u0647 \u0628\u0633\u0628\u0628 \u0627\u0644\u0634\u0641\u0627\u0647.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0639\u0627\u062f\u0629 \u0645\u0627 \u064a\u0643\u0648\u0646 \u0627\u0644\u062c\u0633\u0645 \u0645\u0635\u0646\u0648\u0639\u064b\u0627 \u0645\u0646 \u0627\u0644\u062d\u062f\u064a\u062f \u0627\u0644\u0632\u0647\u0631 \u0627\u0644\u0645\u0631\u0646\u060c \u0623\u0648 \u0627\u0644\u0641\u0648\u0644\u0627\u0630 \u0627\u0644\u0645\u0635\u0628\u0648\u0628 WCB\u060c \u0623\u0648 \u0627\u0644\u0641\u0648\u0644\u0627\u0630 \u0627\u0644\u0645\u0642\u0627\u0648\u0645 \u0644\u0644\u0635\u062f\u0623. <a href=\"https:\/\/www.xintaivalves.com\/ar\/butterfly-valve-collection\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>\u0635\u0645\u0627\u0645 \u0641\u0631\u0627\u0634\u0629 \u0645\u0632\u062f\u0648\u062c \u0627\u0644\u0634\u0641\u0629 <\/strong><\/a><strong>\u0627\u0644\u0634\u0631\u0643\u0627\u062a \u0627\u0644\u0645\u0635\u0646\u0639\u0629<\/strong> \u0646\u0646\u062a\u062c \u0647\u0630\u0647 \u0627\u0644\u0635\u0645\u0627\u0645\u0627\u062a \u0648\u0641\u0642\u064b\u0627 \u0644\u0645\u0639\u0627\u064a\u064a\u0631 \u0627\u0644\u0623\u0628\u0639\u0627\u062f ANSI \u0648 DIN \u0648 API \u0648 JIS.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Makes_the_Single_Flange_Butterfly_Valve_Different\"><\/span><strong>\u0645\u0627 \u0627\u0644\u0630\u064a \u064a\u0645\u064a\u0632 \u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629 \u0630\u0648 \u0627\u0644\u0634\u0641\u0627\u0647 \u0627\u0644\u0645\u0641\u0631\u062f\u0629\u061f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u064a\u062e\u062a\u0644\u0641 \u0647\u0630\u0627 \u0627\u0644\u062a\u0635\u0645\u064a\u0645 \u0639\u0646 <strong>\u0635\u0645\u0627\u0645 \u0641\u0631\u0627\u0634\u0629 \u0623\u062d\u0627\u062f\u064a \u0627\u0644\u0634\u0641\u0629<\/strong> (\u0646\u0648\u0639 \u0627\u0644\u0648\u0627\u0641\u0631). \u0635\u0645\u0627\u0645 \u0627\u0644\u0648\u0627\u0641\u0631 \u0644\u064a\u0633 \u0644\u0647 \u0634\u0641\u0629 \u0645\u062a\u0643\u0627\u0645\u0644\u0629. \u064a\u0639\u062a\u0645\u062f \u0639\u0644\u0649 \u0634\u0641\u0629 \u0627\u0644\u0623\u0646\u0628\u0648\u0628 \u0627\u0644\u0645\u062c\u0627\u0648\u0631\u0629 \u0644\u0644\u0636\u063a\u0637 \u0628\u062f\u0644\u0627\u064b \u0645\u0646 \u0630\u0644\u0643.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0644\u0627 \u062a\u0648\u062c\u062f \u0645\u0633\u0627\u0645\u064a\u0631 \u062a\u0645\u0631 \u0639\u0628\u0631\u0647\u0627 \u0645\u0637\u0644\u0648\u0628\u0629. \u064a\u0645\u0643\u0646 \u0641\u0643 \u0623\u062d\u062f \u062c\u0627\u0646\u0628\u064a \u062e\u0637 \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 \u0648\u0625\u0632\u0627\u0644\u062a\u0647 \u062f\u0648\u0646 \u0625\u0632\u0639\u0627\u062c \u0627\u0644\u062c\u0627\u0646\u0628 \u0627\u0644\u0622\u062e\u0631. \u0647\u0630\u0627 \u064a\u062c\u0639\u0644 \u0635\u0645\u0627\u0645\u0627\u062a \u0627\u0644\u0646\u0648\u0639 \u0627\u0644\u0639\u0631\u0648\u0629 \u0645\u0646\u0627\u0633\u0628\u0629 \u0644\u0644\u062e\u062f\u0645\u0629 \u0627\u0644\u0637\u0631\u0641\u064a\u0629.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u062a\u0634\u0645\u0644 \u0645\u0648\u0627\u062f \u0627\u0644\u0645\u0642\u0639\u062f EPDM \u0648 PTFE \u060c \u0648\u0627\u0644\u062a\u064a \u062a\u062a\u0639\u0627\u0645\u0644 \u0645\u0639 \u0627\u0644\u0648\u0633\u0627\u0626\u0637 \u0627\u0644\u0645\u0633\u0628\u0628\u0629 \u0644\u0644\u062a\u0622\u0643\u0644 \u0623\u0648 \u0627\u0644\u0646\u0634\u0637\u0629 \u0643\u064a\u0645\u064a\u0627\u0626\u064a\u064b\u0627. \u0627\u0644\u062d\u062f\u064a\u062f \u0627\u0644\u0632\u0647\u0631 \u0627\u0644\u0645\u0631\u0646 \u0648 WCB \u0648\u0627\u0644\u0641\u0648\u0644\u0627\u0630 \u0627\u0644\u0645\u0642\u0627\u0648\u0645 \u0644\u0644\u0635\u062f\u0623 \u0647\u064a \u0645\u0648\u0627\u062f \u0627\u0644\u062c\u0633\u0645 \u060c \u0648\u0627\u0644\u062a\u064a \u062a\u0634\u0628\u0647 \u0627\u0644\u0646\u0648\u0639 \u0645\u0632\u062f\u0648\u062c \u0627\u0644\u0634\u0641\u0629.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u064a\u062a\u0631\u0627\u0648\u062d \u0646\u0637\u0627\u0642 \u0627\u0644\u062d\u062c\u0645 \u0627\u0644\u0646\u0645\u0648\u0630\u062c\u064a \u0645\u0646 DN50 (2 \u0628\u0648\u0635\u0629) \u0625\u0644\u0649 DN600 (24 \u0628\u0648\u0635\u0629). \u0635\u0645\u0627\u0645\u0627\u062a \u0627\u0644\u0639\u0631\u0648\u0629 \u062a\u0632\u0646 \u0623\u0642\u0644 \u0645\u0646 \u0627\u0644\u0645\u0643\u0627\u0641\u0626\u0627\u062a \u0645\u0632\u062f\u0648\u062c\u0629 \u0627\u0644\u0634\u0641\u0629 \u0628\u0646\u0641\u0633 \u0627\u0644\u062a\u062c\u0648\u064a\u0641.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Key_Structural_Differences_at_a_Glance\"><\/span><strong>\u0627\u0644\u0627\u062e\u062a\u0644\u0627\u0641\u0627\u062a \u0627\u0644\u0647\u064a\u0643\u0644\u064a\u0629 \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629 \u0641\u064a \u0644\u0645\u062d\u0629<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u064a\u0644\u062e\u0635 \u0627\u0644\u062c\u062f\u0648\u0644 \u0623\u062f\u0646\u0627\u0647 \u0627\u0644\u0627\u062e\u062a\u0644\u0627\u0641\u0627\u062a \u0627\u0644\u0647\u064a\u0643\u0644\u064a\u0629 \u0648\u0627\u0644\u062a\u0634\u063a\u064a\u0644\u064a\u0629 \u0627\u0644\u062d\u0631\u062c\u0629.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>\u0645\u064a\u0632\u0629<\/strong><\/td><td><strong>\u0635\u0645\u0627\u0645 \u0641\u0631\u0627\u0634\u0629 \u0645\u0632\u062f\u0648\u062c \u063a\u0631\u064a\u0628 \u0627\u0644\u0623\u0637\u0648\u0627\u0631<\/strong><\/td><td><strong>\u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629 \u0646\u0648\u0639 \u0627\u0644\u0639\u0631\u0648\u0629<\/strong><\/td><\/tr><tr><td><strong>\u0637\u0631\u064a\u0642\u0629 \u0627\u0644\u062a\u0648\u0635\u064a\u0644<\/strong><\/td><td>\u0627\u0644\u0634\u0641\u0627\u0647 \u0627\u0644\u0645\u062a\u0643\u0627\u0645\u0644\u0629 \u062a\u0631\u0628\u0637 \u0628\u0643\u0644\u062a\u0627 \u0634\u0641\u062a\u064a \u0627\u0644\u0623\u0646\u0628\u0648\u0628<\/td><td>\u062a\u0631\u0628\u0637 \u0627\u0644\u0639\u0631\u0648\u0627\u062a \u0627\u0644\u0645\u0644\u0648\u0644\u0628\u0629 \u0628\u0634\u0643\u0644 \u0645\u0633\u062a\u0642\u0644 \u0628\u0643\u0644 \u0634\u0641\u0629<\/td><\/tr><tr><td><strong>\u062e\u062f\u0645\u0629 \u0637\u0631\u0641\u064a\u0629<\/strong><\/td><td>\u063a\u064a\u0631 \u0645\u0648\u0635\u0649 \u0628\u0647 \u0628\u062f\u0648\u0646 \u062a\u0639\u062f\u064a\u0644<\/td><td>\u0646\u0639\u0645 \u060c \u064a\u0645\u0643\u0646 \u0639\u0632\u0644 \u062c\u0627\u0646\u0628 \u0648\u0627\u062d\u062f<\/td><\/tr><tr><td><strong>\u0648\u0632\u0646 \u0627\u0644\u062c\u0633\u0645<\/strong><\/td><td>\u0628\u064f\u0639\u062f \u0648\u062c\u0647\u064b\u0627 \u0644\u0648\u062c\u0647 \u0623\u062b\u0642\u0644 \u0648\u0623\u0643\u0628\u0631<\/td><td>\u0645\u0642\u0637\u0639 \u062c\u0627\u0646\u0628\u064a \u0623\u062e\u0641 \u0648\u0623\u0643\u062b\u0631 \u0625\u062d\u0643\u0627\u0645\u064b\u0627<\/td><\/tr><tr><td><strong>\u0646\u0645\u0637 \u0627\u0644\u062a\u062b\u0628\u064a\u062a \u0628\u0627\u0644\u0645\u0633\u0627\u0645\u064a\u0631<\/strong><\/td><td><strong>\u062a\u062b\u0628\u064a\u062a \u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629 \u0630\u0648 \u0627\u0644\u0634\u0641\u0627\u0647 \u0627\u0644\u0645\u0632\u062f\u0648\u062c\u0629<\/strong>: \u0645\u062c\u0645\u0648\u0639\u0629 \u0645\u0633\u0627\u0645\u064a\u0631 \u0643\u0627\u0645\u0644\u0629 \u062a\u0645\u0631 \u0639\u0628\u0631 \u0643\u0644\u0627 \u0627\u0644\u0634\u0641\u0627\u0647<\/td><td>\u0641\u0635\u0644 \u0627\u0644\u0645\u0633\u0627\u0645\u064a\u0631 \u0641\u064a \u0643\u0644 \u0639\u0631\u0648\u0629\u060c \u0644\u0627 \u062d\u0627\u062c\u0629 \u0644\u0645\u0633\u0627\u0645\u064a\u0631 \u062a\u0645\u0631 \u0639\u0628\u0631\u0647\u0645\u0627<\/td><\/tr><tr><td><strong>\u0627\u0644\u0645\u0639\u0627\u064a\u064a\u0631<\/strong><\/td><td>ANSI\u060c DIN\u060c API\u060c JIS. \u0627\u0646\u0638\u0631 <strong>\u0623\u0628\u0639\u0627\u062f \u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629 \u0630\u0648 \u0627\u0644\u0634\u0641\u0629 \u0627\u0644\u0645\u0632\u062f\u0648\u062c\u0629<\/strong> \u0641\u064a \u0627\u0644\u0645\u0646\u062a\u062c <strong><a href=\"https:\/\/www.xintaivalves.com\/ar\/blog\/butterfly-valve\/what-double-flange-butterfly-valve\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.xintaivalves.com\/blog\/butterfly-valve\/what-double-flange-butterfly-valve\/\" rel=\"noreferrer noopener\">\u0635\u0645\u0627\u0645 \u0641\u0631\u0627\u0634\u0629 \u0645\u0632\u062f\u0648\u062c \u0627\u0644\u0634\u0641\u0629<\/a> \u0627\u0644\u0643\u062a\u0627\u0644\u0648\u062c<\/strong><\/td><td>\u062a\u0646\u0637\u0628\u0642 \u0646\u0641\u0633 \u0627\u0644\u0645\u0639\u0627\u064a\u064a\u0631\u061b \u0628\u064f\u0639\u062f \u0648\u062c\u0647\u064b\u0627 \u0644\u0648\u062c\u0647 \u0623\u0642\u0635\u0631<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Pressure_Ratings_Which_Valve_Handles_More\"><\/span><strong>\u062a\u0635\u0646\u064a\u0641\u0627\u062a \u0627\u0644\u0636\u063a\u0637: \u0623\u064a \u0635\u0645\u0627\u0645 \u064a\u062a\u062d\u0645\u0644 \u0627\u0644\u0645\u0632\u064a\u062f\u061f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u063a\u0627\u0644\u0628\u064b\u0627 \u0645\u0627 \u064a\u0643\u0648\u0646 \u0623\u062f\u0627\u0621 \u0627\u0644\u0636\u063a\u0637 \u0647\u0648 \u0627\u0644\u0639\u0627\u0645\u0644 \u0627\u0644\u062d\u0627\u0633\u0645 \u0628\u064a\u0646 \u0647\u0630\u064a\u0646 \u0627\u0644\u0646\u0648\u0639\u064a\u0646 \u0645\u0646 \u0627\u0644\u0635\u0645\u0627\u0645\u0627\u062a. \u064a\u062c\u0628 \u0639\u0644\u0649 \u0627\u0644\u0645\u0647\u0646\u062f\u0633\u064a\u0646 \u0627\u0644\u062a\u062d\u0642\u0642 \u0645\u0646 \u0627\u0644\u062a\u0635\u0646\u064a\u0641\u0627\u062a \u0642\u0628\u0644 \u0627\u0644\u0627\u0646\u062a\u0647\u0627\u0621 \u0645\u0646 \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u062a\u062a\u062d\u0645\u0644 \u062a\u0635\u0645\u064a\u0645\u0627\u062a \u0627\u0644\u0635\u0645\u0627\u0645\u0627\u062a \u0630\u0627\u062a \u0627\u0644\u0634\u0641\u0627\u0647 \u0627\u0644\u0645\u0632\u062f\u0648\u062c\u0629 \u0636\u063a\u0637\u064b\u0627 \u0645\u064a\u0643\u0627\u0646\u064a\u0643\u064a\u064b\u0627 \u0623\u0639\u0644\u0649 \u0644\u0623\u0646 \u0627\u0644\u0634\u0641\u0627\u0647 \u0627\u0644\u0645\u062a\u0643\u0627\u0645\u0644\u0629 \u062a\u0648\u0632\u0639 \u0627\u0644\u062d\u0645\u0644 \u0628\u0627\u0644\u062a\u0633\u0627\u0648\u064a \u0639\u0628\u0631 \u0627\u0644\u0648\u062c\u0647 \u0627\u0644\u0643\u0627\u0645\u0644. \u0647\u0630\u0627 \u064a\u062d\u0633\u0646 \u0627\u062a\u0633\u0627\u0642 \u0627\u0644\u062e\u062a\u0645 \u0641\u064a \u0638\u0631\u0648\u0641 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0639\u0627\u0644\u064a.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0647\u0630\u0647 \u0627\u0644\u0635\u0645\u0627\u0645\u0627\u062a \u0645\u0646\u0627\u0633\u0628\u0629 \u0644\u0644\u062e\u062f\u0645\u0629 \u0630\u0627\u062a \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0639\u0627\u0644\u064a \u0648\u062f\u0631\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u0639\u0627\u0644\u064a\u0629 \u0648\u0627\u0644\u062e\u062f\u0645\u0629 \u0627\u0644\u0645\u0633\u0628\u0628\u0629 \u0644\u0644\u062a\u0622\u0643\u0644. \u062a\u0634\u0645\u0644 \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0627\u0644\u0634\u0627\u0626\u0639\u0629 \u0646\u0642\u0644 \u0627\u0644\u0646\u0641\u0637 \u0648\u0627\u0644\u063a\u0627\u0632\u060c \u0648\u062e\u0637\u0648\u0637 \u0627\u0644\u0645\u064a\u0627\u0647 \u0630\u0627\u062a \u0627\u0644\u0642\u0637\u0631 \u0627\u0644\u0643\u0628\u064a\u0631\u060c \u0648\u062a\u0648\u0644\u064a\u062f \u0627\u0644\u0637\u0627\u0642\u0629.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u062a\u0639\u0645\u0644 \u0635\u0645\u0627\u0645\u0627\u062a \u0627\u0644\u0646\u0648\u0639 \u0630\u064a \u0627\u0644\u0639\u0631\u0648\u0627\u062a \u0628\u0634\u0643\u0644 \u062c\u064a\u062f \u0641\u064a \u0627\u0644\u062e\u062f\u0645\u0629 \u0630\u0627\u062a \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0645\u0646\u062e\u0641\u0636 \u0625\u0644\u0649 \u0627\u0644\u0645\u062a\u0648\u0633\u0637. \u064a\u0645\u0643\u0646 \u0623\u0646 \u062a\u0646\u062e\u0641\u0636 \u062a\u0635\u0646\u064a\u0641\u0627\u062a \u0627\u0644\u0636\u063a\u0637 \u0639\u0646\u062f \u0627\u0633\u062a\u062e\u062f\u0627\u0645\u0647\u0627 \u0641\u064a \u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0646\u0647\u0627\u064a\u0629 \u0645\u0633\u062f\u0648\u062f\u0629. \u062a\u062d\u0642\u0642 \u062f\u0627\u0626\u0645\u064b\u0627 \u0645\u0646 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0645\u0642\u0646\u0646 \u0645\u0642\u0627\u0628\u0644 \u0638\u0631\u0648\u0641 \u0627\u0644\u0646\u0638\u0627\u0645 \u0627\u0644\u0641\u0639\u0644\u064a\u0629.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0623\u0642\u0637\u0627\u0631 \u062e\u0637\u0648\u0637 \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u062a\u064a \u062a\u0632\u064a\u062f \u0639\u0646 DN400\u060c \u064a\u0648\u0641\u0631 \u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629 \u0645\u0632\u062f\u0648\u062c \u0627\u0644\u0644\u0627\u0645\u0631\u0643\u0632\u064a\u0629 \u062b\u0628\u0627\u062a\u064b\u0627 \u0647\u064a\u0643\u0644\u064a\u064b\u0627 \u0623\u0643\u0628\u0631. \u0631\u0627\u062c\u0639 <strong>\u0645\u0644\u0641 PDF \u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629 \u0630\u0648 \u0627\u0644\u0634\u0641\u0627\u0647 \u0627\u0644\u0645\u0632\u062f\u0648\u062c\u0629<\/strong> \u0645\u0646 \u0627\u0644\u0645\u0648\u0631\u062f \u0627\u0644\u062e\u0627\u0635 \u0628\u0643 \u0644\u062c\u062f\u0627\u0648\u0644 \u062a\u062e\u0641\u064a\u0636 \u0627\u0644\u0636\u063a\u0637 \u0648\u062f\u0631\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u0629.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Double-Flanged_Butterfly_Valve_Sizes_Dimensions_and_Bolting\"><\/span><strong>\u0623\u062d\u062c\u0627\u0645 \u0648\u0623\u0628\u0639\u0627\u062f \u0648\u062a\u062b\u0628\u064a\u062a \u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629 \u0630\u0648 \u0627\u0644\u0634\u0641\u0627\u0647 \u0627\u0644\u0645\u0632\u062f\u0648\u062c\u0629<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" width=\"397\" height=\"499\" src=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u72473.webp\" alt=\"\u0635\u0645\u0627\u0645 \u0641\u0631\u0627\u0634\u0629 \u0645\u0632\u062f\u0648\u062c \u0627\u0644\u0634\u0641\u0629\" class=\"wp-image-15656\" style=\"aspect-ratio:0.7955965118436514;width:181px;height:auto\" srcset=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u72473.webp 397w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u72473-239x300.webp 239w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u72473-10x12.webp 10w\" sizes=\"(max-width: 397px) 100vw, 397px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">\u064a\u062c\u0628 \u0639\u0644\u0649 \u0627\u0644\u0645\u0634\u062a\u0631\u064a\u0646 \u062f\u0627\u0626\u0645\u064b\u0627 \u062a\u0623\u0643\u064a\u062f \u0627\u0644\u062a\u062d\u062c\u064a\u0645 \u0648\u062a\u0642\u064a\u064a\u0645 \u0627\u0644\u0634\u0647\u0627\u062f\u0627\u062a <strong>\u0643\u062a\u0627\u0644\u0648\u062c \u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629 \u0630\u0648 \u0627\u0644\u0634\u0641\u0627\u0647 \u0627\u0644\u0645\u0632\u062f\u0648\u062c\u0629<\/strong> before ordering. This helps prevent costly mismatches during procurement.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Double-flanged butterfly valve sizes<\/strong> typically range from DN50 (2\u2033) to DN2000 (80\u2033) for large infrastructure projects.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Face-to-face dimensions follow ANSI B16.10, EN 558 Series 13\/14, or <a href=\"https:\/\/www.xintaivalves.com\/ar\/blog\/standard\/understanding-the-standard-api-valve\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.xintaivalves.com\/blog\/standard\/understanding-the-standard-api-valve\/\" rel=\"noreferrer noopener\">\u0645\u0639\u0627\u064a\u064a\u0631 API<\/a>. <strong>Double-flanged <a href=\"https:\/\/www.xintaivalves.com\/ar\/blog\/butterfly-valve\/butterfly-valve-dimensions\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.xintaivalves.com\/blog\/butterfly-valve\/butterfly-valve-dimensions\/\" rel=\"noreferrer noopener\">butterfly valve dimensions<\/a><\/strong> vary by pressure class and nominal bore. A <strong>\u0645\u0644\u0641 PDF \u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629 \u0630\u0648 \u0627\u0644\u0634\u0641\u0627\u0647 \u0627\u0644\u0645\u0632\u062f\u0648\u062c\u0629<\/strong> datasheet from your supplier provides the full dimensional table.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For quick reference, ANSI face-to-face examples include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>DN80 (3\u2033): approx. 216 mm (8.5\u2033)<\/li>\n\n\n\n<li>DN150 (6\u2033): approx. 368 mm (14.5\u2033)<\/li>\n\n\n\n<li>DN200 (8\u2033): approx. 444 mm (17.5\u2033)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Double-flanged butterfly valve bolting<\/strong> requires stud bolts and nuts to secure both flanges simultaneously. The bolt circle diameter, bolt count, and bolt size follow the applicable standards of ANSI Class 150\/300 or PN10\/PN16.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Lug-type valves use shorter, separate bolts that thread into each lug. Fewer bolts mean faster disassembly during maintenance.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Installation_and_Maintenance_Comparison\"><\/span><strong>\u0645\u0642\u0627\u0631\u0646\u0629 \u0627\u0644\u062a\u0631\u0643\u064a\u0628 \u0648\u0627\u0644\u0635\u064a\u0627\u0646\u0629<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The total project cost is determined by how easily a valve can be installed. Both valve types require different approaches to site preparation and maintenance planning.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u064a\u062a\u0637\u0644\u0628 \u062a\u0631\u0643\u064a\u0628 \u0635\u0645\u0627\u0645 \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 \u0630\u064a \u0627\u0644\u0634\u0641\u0627\u0647 \u0627\u0644\u0645\u0632\u062f\u0648\u062c\u0629 \u0645\u062d\u0627\u0630\u0627\u0629 \u062f\u0642\u064a\u0642\u0629 \u0644\u0644\u0634\u0641\u0627\u0647 \u0639\u0644\u0649 \u0643\u0644\u0627 \u0627\u0644\u062c\u0627\u0646\u0628\u064a\u0646 \u0642\u0628\u0644 \u0634\u062f \u0645\u062c\u0645\u0648\u0639\u0629 \u0627\u0644\u0645\u0633\u0627\u0645\u064a\u0631 \u0628\u0627\u0644\u0643\u0627\u0645\u0644. \u0648\u0627\u0644\u0646\u062a\u064a\u062c\u0629 \u0647\u064a \u062a\u062c\u0645\u064a\u0639 \u0635\u0644\u0628 \u0648\u0645\u0642\u0627\u0648\u0645 \u0644\u0644\u062a\u0633\u0631\u0628 \u0645\u0635\u0645\u0645 \u0644\u0644\u062e\u062f\u0645\u0629 \u0627\u0644\u062f\u0627\u0626\u0645\u0629.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u064a\u062a\u0645 \u0631\u0628\u0637 \u0627\u0644\u0635\u0645\u0627\u0645\u0627\u062a \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 \u0627\u0644\u0639\u0631\u0648\u064a \u0628\u0634\u0643\u0644 \u0645\u0633\u062a\u0642\u0644 \u0628\u0643\u0644 \u0634\u0641\u0629. \u064a\u0645\u0643\u0646 \u0644\u0644\u0641\u0631\u0642 \u0625\u0632\u0627\u0644\u0629 \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 \u0627\u0644\u0633\u0641\u0644\u064a\u0629 \u062f\u0648\u0646 \u062a\u0639\u0637\u064a\u0644 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0639\u0644\u0648\u064a. \u0647\u0630\u0627 \u064a\u0628\u0633\u0637 \u0627\u0644\u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u062a\u064a \u062a\u062a\u0637\u0644\u0628 \u0627\u0633\u062a\u0628\u062f\u0627\u0644 \u0627\u0644\u0645\u0643\u0648\u0646\u0627\u062a \u0628\u0634\u0643\u0644 \u0645\u062a\u0643\u0631\u0631.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0645\u0646 \u0645\u0646\u0638\u0648\u0631 \u0627\u0644\u062a\u0643\u0644\u0641\u0629\u060c \u062a\u062d\u0645\u0644 \u0627\u0644\u0635\u0645\u0627\u0645\u0627\u062a \u0645\u0646 \u0627\u0644\u0646\u0648\u0639 \u0627\u0644\u0639\u0631\u0648\u064a \u062a\u0643\u0644\u0641\u0629 \u0648\u062d\u062f\u0629 \u0623\u0642\u0644 \u0648\u062a\u0632\u0646 \u0623\u0642\u0644. \u064a\u0641\u0631\u0636 \u0627\u0644\u0635\u0645\u0627\u0645 \u0630\u0648 \u0627\u0644\u0634\u0641\u0627\u0647 \u0627\u0644\u0645\u0632\u062f\u0648\u062c\u0629 \u0633\u0639\u0631\u064b\u0627 \u0623\u0639\u0644\u0649 \u0648\u0644\u0643\u0646\u0647 \u064a\u0648\u0641\u0631 \u0623\u062f\u0627\u0621\u064b \u062b\u0627\u0628\u062a\u064b\u0627 \u0641\u064a \u0627\u0644\u062e\u062f\u0645\u0629 \u0627\u0644\u0635\u0639\u0628\u0629 \u0648\u0637\u0648\u064a\u0644\u0629 \u0627\u0644\u062f\u0648\u0631\u0629.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Which_Valve_Type_Fits_Your_System\"><\/span><strong>\u0623\u064a \u0646\u0648\u0639 \u0645\u0646 \u0627\u0644\u0635\u0645\u0627\u0645\u0627\u062a \u064a\u0646\u0627\u0633\u0628 \u0646\u0638\u0627\u0645\u0643\u061f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u72474-1024x512.webp\" alt=\"Which Valve Type Fits Your System\" class=\"wp-image-15657\" style=\"width:538px;height:auto\" srcset=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u72474-1024x512.webp 1024w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u72474-300x150.webp 300w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u72474-768x384.webp 768w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u72474-18x9.webp 18w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u72474.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u064a\u0639\u062a\u0645\u062f \u0627\u0644\u0627\u062e\u062a\u064a\u0627\u0631 \u0628\u064a\u0646 \u0646\u0648\u0639\u064a \u0627\u0644\u0635\u0645\u0627\u0645\u0627\u062a \u0639\u0644\u0649 \u0638\u0631\u0648\u0641 \u0627\u0644\u062a\u0637\u0628\u064a\u0642 \u0627\u0644\u0645\u062d\u062f\u062f\u0629.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u062a\u0633\u0627\u0639\u062f \u0627\u0644\u0642\u0627\u0626\u0645\u0629 \u0627\u0644\u0645\u0631\u062c\u0639\u064a\u0629 \u0623\u062f\u0646\u0627\u0647 \u0641\u0631\u0642 \u0627\u0644\u0645\u0634\u0631\u0648\u0639 \u0639\u0644\u0649 \u0627\u062a\u062e\u0627\u0630 \u0642\u0631\u0627\u0631 \u0648\u0627\u062b\u0642 \u0648\u062c\u0627\u0647\u0632 \u0644\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Choose_a_double-flanged_valve_when\"><\/span><strong>\u0627\u062e\u062a\u0631 \u0635\u0645\u0627\u0645\u064b\u0627 \u0630\u0627 \u0634\u0641\u0627\u0647 \u0645\u0632\u062f\u0648\u062c\u0629 \u0639\u0646\u062f\u0645\u0627:<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u064a\u062a\u062c\u0627\u0648\u0632 \u0636\u063a\u0637 \u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0623\u0648 \u062f\u0631\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u0646\u0637\u0627\u0642 \u0627\u0644\u0645\u0642\u062f\u0631 \u0644\u0644\u0646\u0648\u0639 \u0627\u0644\u0639\u0631\u0648\u064a.<\/li>\n\n\n\n<li>\u0642\u0637\u0631 \u062e\u0637 \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 \u0647\u0648 DN400 \u0623\u0648 \u0623\u0643\u0628\u0631\u060c \u0645\u062b\u0644 \u0627\u0644\u0628\u0646\u064a\u0629 \u0627\u0644\u062a\u062d\u062a\u064a\u0629 \u0644\u0644\u0645\u064a\u0627\u0647 \u0623\u0648 <a href=\"https:\/\/www.xintaivalves.com\/ar\/blog\/upstream-vs-downstream-oil-gas\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.xintaivalves.com\/blog\/upstream-vs-downstream-oil-gas\/\" rel=\"noreferrer noopener\">\u0627\u0644\u0646\u0641\u0637 \u0648\u0627\u0644\u063a\u0627\u0632<\/a> \u062e\u0637\u0648\u0637 \u0627\u0644\u0646\u0642\u0644.<\/li>\n\n\n\n<li>\u0627\u0644\u062a\u0631\u0643\u064a\u0628 \u062f\u0627\u0626\u0645\u060c \u0648\u0627\u0644\u0648\u0635\u0648\u0644 \u0644\u0644\u0635\u064a\u0627\u0646\u0629 \u0646\u0627\u062f\u0631.<\/li>\n\n\n\n<li>\u062a\u062a\u0637\u0644\u0628 \u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0645\u0634\u0631\u0648\u0639 \u0645\u0648\u062b\u0642\u0629 <strong>\u0623\u0628\u0639\u0627\u062f \u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629 \u0630\u064a \u0627\u0644\u0634\u0641\u0627\u0647 \u0627\u0644\u0645\u0632\u062f\u0648\u062c\u0629<\/strong> \u0648\u0641\u0642\u064b\u0627 \u0644\u0645\u0639\u0627\u064a\u064a\u0631 ANSI \u0623\u0648 DIN \u0623\u0648 API.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Choose_a_lug-type_butterfly_valve_when\"><\/span><strong>\u0627\u062e\u062a\u0631 \u0635\u0645\u0627\u0645 \u0641\u0631\u0627\u0634\u0629 \u0645\u0646 \u0646\u0648\u0639 \u0627\u0644\u0639\u0631\u0648\u0629 \u0639\u0646\u062f\u0645\u0627:<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u064a\u0644\u0632\u0645 \u0625\u062c\u0631\u0627\u0621 \u0635\u064a\u0627\u0646\u0629 \u0623\u0648 \u0641\u062d\u0635 \u0623\u0648 \u0627\u0633\u062a\u0628\u062f\u0627\u0644 \u0635\u0645\u0627\u0645 \u0628\u0634\u0643\u0644 \u0645\u062a\u0643\u0631\u0631.<\/li>\n\n\n\n<li>\u0627\u0644\u0639\u0632\u0644 \u0641\u064a \u0646\u0647\u0627\u064a\u0629 \u0627\u0644\u062e\u0637 \u0623\u0648 \u0646\u0647\u0627\u064a\u0629 \u0627\u0644\u062e\u0637 \u0647\u0648 \u0645\u062a\u0637\u0644\u0628 \u0644\u0644\u0646\u0638\u0627\u0645.<\/li>\n\n\n\n<li>\u062a\u0646\u0637\u0628\u0642 \u0642\u064a\u0648\u062f \u0627\u0644\u0645\u064a\u0632\u0627\u0646\u064a\u0629 \u0623\u0648 \u0627\u0644\u0648\u0632\u0646\u060c \u062e\u0627\u0635\u0629 \u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0630\u0627\u062a \u0627\u0644\u0642\u0637\u0631 \u0627\u0644\u0623\u0635\u063a\u0631 \u0648\u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0645\u0639\u062a\u062f\u0644.<\/li>\n\n\n\n<li>\u062a\u0634\u0645\u0644 \u0628\u064a\u0626\u0629 \u0627\u0644\u0646\u0638\u0627\u0645 \u0627\u0644\u062a\u062f\u0641\u0626\u0629 \u0648\u0627\u0644\u062a\u0647\u0648\u064a\u0629 \u0648\u062a\u0643\u064a\u064a\u0641 \u0627\u0644\u0647\u0648\u0627\u0621\u060c \u0648\u0627\u0644\u0635\u0646\u0627\u0639\u0627\u062a \u0627\u0644\u062e\u0641\u064a\u0641\u0629\u060c \u0648\u0627\u0644\u0645\u0639\u0627\u0644\u062c\u0629 \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a\u0629\u060c \u0623\u0648 <a href=\"https:\/\/www.xintaivalves.com\/ar\/blog\/valves-for-water-treatment\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.xintaivalves.com\/blog\/valves-for-water-treatment\/\" rel=\"noreferrer noopener\">\u0645\u0639\u0627\u0644\u062c\u0629 \u0627\u0644\u0645\u064a\u0627\u0647<\/a>.&nbsp;<\/li>\n<\/ul>\n\n\n\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n  <title>\u062a\u0633\u0644\u064a\u0637 \u0627\u0644\u0636\u0648\u0621 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c \u0627\u0644\u0628\u0637\u0644<\/title>\n  <style>\n    .hero-card {\n      display: flex;\n      flex-wrap: wrap;\n      align-items: center;\n      background: #f7f8fa;\n      border-radius: 16px;\n      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);\n      padding: 24px;\n      max-width: 900px;\n      margin: 40px auto;\n      font-family: Arial, sans-serif;\n      text-decoration: none;\n      color: inherit;\n      font-family: 'Poppins';\n    }\n\n    .hero-image {\n      width: 220px;\n      height: auto;\n      border-radius: 12px;\n      object-fit: cover;\n      flex-shrink: 0;\n    }\n\n    .hero-content {\n      padding-left: 24px;\n      flex: 1;\n      min-width: 260px;\n    }\n\n    .hero-title {\n      font-size: 1.6rem;\n      font-weight: bold;\n      margin-bottom: 12px;\n      color: #222;\n      font-family: 'Poppins';\n    }\n\n    .hero-description {\n      font-size: 1rem;\n      color: #555;\n      margin-bottom: 18px;\n    }\n\n    .hero-link {\n      display: inline-block;\n      padding: 10px 20px;\n      background-color: #D70C19;\n      color: #fff;\n      text-decoration: none;\n      border-radius: 8px;\n      font-weight: bold;\n      transition: background 0.2s ease-in-out;\n    }\n\n    .hero-link:hover {\n      background-color: #D70C19;\n    }\n\n    @media (max-width: 640px) {\n      .hero-card {\n        flex-direction: column;\n        text-align: center;\n      }\n\n      .hero-content {\n        padding-left: 0;\n        padding-top: 20px;\n      }\n\n      .hero-image {\n        width: 100%;\n        max-width: 280px;\n      }\n    }\n  <\/style>\n<\/head>\n<body>\n\n<a class=\"hero-card\" href=\"https:\/\/www.xintaivalves.com\/ar\/products\/double-eccentric-butterfly-valves\/\" target=\"_blank\">\n  <img decoding=\"async\" class=\"hero-image\" src=\"https:\/\/xintaivalves.com\/wp-content\/uploads\/2022\/02\/%E6%9C%AA%E6%A0%87%E9%A2%98-1-6.jpg\" alt=\"\u0635\u0645\u0627\u0645\u0627\u062a \u0627\u0644\u0641\u0631\u0627\u0634\u0629 \u0627\u0644\u0644\u0627\u0645\u0631\u0643\u0632\u064a\u0629 \u0627\u0644\u0645\u0632\u062f\u0648\u062c\u0629\">\n  <div class=\"hero-content\">\n    <div class=\"hero-title\">\u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629 \u0627\u0644\u0645\u0632\u062f\u0648\u062c \u0627\u0644\u0644\u0627\u0645\u0631\u0643\u0632\u064a<\/div>\n    <div class=\"hero-description\">\u062a\u0645 \u062a\u0635\u0645\u064a\u0645 \u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629 \u0627\u0644\u0645\u0632\u062f\u0648\u062c \u0627\u0644\u0644\u0627\u0645\u0631\u0643\u0632\u064a \u0644\u0644\u062a\u062d\u0643\u0645 \u0627\u0644\u062f\u0642\u064a\u0642 \u0641\u064a \u0627\u0644\u062a\u062f\u0641\u0642\u060c \u062d\u064a\u062b \u064a\u0648\u0641\u0631 \u0623\u062f\u0627\u0621\u064b \u0645\u0639\u0632\u0632\u064b\u0627 \u0644\u0644\u0625\u063a\u0644\u0627\u0642 \u0648\u0645\u062a\u0627\u0646\u0629 \u0644\u0644\u0623\u0646\u0638\u0645\u0629 \u0630\u0627\u062a \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0639\u0627\u0644\u064a.<\/div>\n    <span class=\"hero-link\">\u0627\u0633\u062a\u0643\u0634\u0627\u0641 \u0627\u0644\u0645\u0646\u062a\u062c<\/span>\n  <\/div>\n<\/a>\n\n<\/body>\n<\/html>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><strong>\u062e\u0627\u062a\u0645\u0629<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0627\u0644\u0627\u062e\u062a\u064a\u0627\u0631 \u0628\u064a\u0646 <strong>\u0635\u0645\u0627\u0645 \u0641\u0631\u0627\u0634\u0629 \u0645\u0632\u062f\u0648\u062c \u0627\u0644\u0634\u0641\u0629<\/strong> and a lug type comes down to four key factors. You must evaluate the pressure rating, installation type, maintenance frequency, and dimensional compliance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">High-pressure, large-diameter, and permanent installations call for the double-flanged design. Budget-conscious, maintenance-intensive, or dead-end service applications call for the lug type.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.xintaivalves.com\/ar\/contact\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u0635\u0645\u0627\u0645\u0627\u062a Xintai<\/a> has manufactured industrial butterfly valves since 1998. Products comply with ISO 9001, API, CE, ANSI, DIN, JIS, and BS standards. The company operates six production bases across China, with a 58,000 sqm workshop and an annual output of over 270,000 valves.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">We also supply engineering firms, project buyers, and distributors across nearly 40 countries. Clients include major operators in North America, South America, Europe, and the Middle East.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-fe48e5de wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-white-color has-vivid-red-background-color has-text-color has-background has-link-color has-medium-font-size has-custom-font-size wp-element-button\" href=\"https:\/\/www.xintaivalves.com\/ar\/contact\/\" style=\"font-style:normal;font-weight:500\" target=\"_blank\" rel=\"noreferrer noopener\">\u0627\u062d\u0635\u0644 \u0639\u0644\u0649 \u0639\u0631\u0636 \u0633\u0639\u0631<\/a><\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>Different types of valves are needed in your system for different reasons. The distinction between a lug valve and a flanged valve depends on how they are installed. When selecting a double-flanged butterfly valve or a lug valve, consider key long-term expenses. You must evaluate both upfront installation costs and future maintenance expenses. This article [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":15653,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-15650","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-butterfly-valve"],"_links":{"self":[{"href":"https:\/\/www.xintaivalves.com\/ar\/wp-json\/wp\/v2\/posts\/15650","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xintaivalves.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xintaivalves.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xintaivalves.com\/ar\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xintaivalves.com\/ar\/wp-json\/wp\/v2\/comments?post=15650"}],"version-history":[{"count":4,"href":"https:\/\/www.xintaivalves.com\/ar\/wp-json\/wp\/v2\/posts\/15650\/revisions"}],"predecessor-version":[{"id":15677,"href":"https:\/\/www.xintaivalves.com\/ar\/wp-json\/wp\/v2\/posts\/15650\/revisions\/15677"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.xintaivalves.com\/ar\/wp-json\/wp\/v2\/media\/15653"}],"wp:attachment":[{"href":"https:\/\/www.xintaivalves.com\/ar\/wp-json\/wp\/v2\/media?parent=15650"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xintaivalves.com\/ar\/wp-json\/wp\/v2\/categories?post=15650"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xintaivalves.com\/ar\/wp-json\/wp\/v2\/tags?post=15650"}],"curies":[{"name":"\u0648\u0648\u0631\u062f\u0628\u0631\u064a\u0633","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}