{"id":14666,"date":"2026-01-11T09:00:00","date_gmt":"2026-01-11T01:00:00","guid":{"rendered":"https:\/\/www.xintaivalves.com\/?p=14666"},"modified":"2026-02-04T09:34:12","modified_gmt":"2026-02-04T01:34:12","slug":"super-duplex-ball-valve-chloride-resistance","status":"publish","type":"post","link":"https:\/\/www.xintaivalves.com\/fa\/blog\/technical-science\/super-duplex-ball-valve-chloride-resistance\/","title":{"rendered":"\u0633\u0648\u067e\u0631 \u062f\u0627\u067e\u0644\u06a9\u0633 \u06f2\u06f5\u06f0\u06f7 \u0628\u0631\u0627\u06cc \u0634\u06cc\u0631\u0647\u0627\u06cc \u062a\u0648\u067e\u06cc: \u06a9\u0627\u0647\u0634 \u062a\u0631\u06a9 \u062e\u0648\u0631\u062f\u06af\u06cc \u062a\u0646\u0634\u06cc \u06a9\u0644\u0631\u06cc\u062f\u06cc"},"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\">\u0641\u0647\u0631\u0633\u062a \u0645\u0637\u0627\u0644\u0628<\/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=\"Change Table of Contents Status\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">\u062a\u063a\u06cc\u06cc\u0631 \u0648\u0636\u0639\u06cc\u062a<\/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\/fa\/blog\/technical-science\/super-duplex-ball-valve-chloride-resistance\/#What_chloride_SCC_looks_like_in_real_systems\" >SCC \u06a9\u0644\u0631\u06cc\u062f\u06cc \u062f\u0631 \u0633\u06cc\u0633\u062a\u0645\u200c\u0647\u0627\u06cc \u0648\u0627\u0642\u0639\u06cc \u0686\u06af\u0648\u0646\u0647 \u0628\u0647 \u0646\u0638\u0631 \u0645\u06cc\u200c\u0631\u0633\u062f\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\/fa\/blog\/technical-science\/super-duplex-ball-valve-chloride-resistance\/#Why_%E2%80%9Cgood_stainless%E2%80%9D_still_fails\" >\u0686\u0631\u0627 \u201c\u0636\u062f \u0632\u0646\u06af \u062e\u0648\u0628\u201d \u0647\u0646\u0648\u0632 \u0647\u0645 \u0634\u06a9\u0633\u062a \u0645\u06cc\u200c\u062e\u0648\u0631\u062f\u061f<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.xintaivalves.com\/fa\/blog\/technical-science\/super-duplex-ball-valve-chloride-resistance\/#PREN_a_quick_way_to_compare_chloride_resistance\" >PREN: \u0631\u0648\u0634\u06cc \u0633\u0631\u06cc\u0639 \u0628\u0631\u0627\u06cc \u0645\u0642\u0627\u06cc\u0633\u0647 \u0645\u0642\u0627\u0648\u0645\u062a \u062f\u0631 \u0628\u0631\u0627\u0628\u0631 \u06a9\u0644\u0631\u06cc\u062f<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.xintaivalves.com\/fa\/blog\/technical-science\/super-duplex-ball-valve-chloride-resistance\/#What_higher_PREN_suggests\" >PREN \u0628\u0627\u0644\u0627\u062a\u0631 \u0646\u0634\u0627\u0646 \u062f\u0647\u0646\u062f\u0647 \u0686\u06cc\u0633\u062a\u061f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.xintaivalves.com\/fa\/blog\/technical-science\/super-duplex-ball-valve-chloride-resistance\/#How_to_use_PREN_in_procurement\" >\u0646\u062d\u0648\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 PREN \u062f\u0631 \u062a\u062f\u0627\u0631\u06a9\u0627\u062a<\/a><\/li><\/ul><\/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\/fa\/blog\/technical-science\/super-duplex-ball-valve-chloride-resistance\/#Where_super_duplex_2507_makes_sense\" >\u062c\u0627\u06cc\u06cc \u06a9\u0647 \u0633\u0648\u067e\u0631 \u062f\u0627\u067e\u0644\u06a9\u0633 \u06f2\u06f5\u06f0\u06f7 \u0645\u0646\u0637\u0642\u06cc \u0627\u0633\u062a<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.xintaivalves.com\/fa\/blog\/technical-science\/super-duplex-ball-valve-chloride-resistance\/#Typical_%E2%80%9Cyes%E2%80%9D_scenarios\" >\u0633\u0646\u0627\u0631\u06cc\u0648\u0647\u0627\u06cc \u0645\u0639\u0645\u0648\u0644 \u201c\u0628\u0644\u0647\u201d<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.xintaivalves.com\/fa\/blog\/technical-science\/super-duplex-ball-valve-chloride-resistance\/#Typical_%E2%80%9Cmaybe%E2%80%9D_scenarios\" >\u0633\u0646\u0627\u0631\u06cc\u0648\u0647\u0627\u06cc \u0645\u0639\u0645\u0648\u0644 \u201c\u0634\u0627\u06cc\u062f\u201d<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.xintaivalves.com\/fa\/blog\/technical-science\/super-duplex-ball-valve-chloride-resistance\/#Valve_builds_choices_that_support_the_alloy\" >\u0648\u0644\u0648 \u06af\u0632\u06cc\u0646\u0647\u200c\u0647\u0627\u06cc\u06cc \u0645\u06cc\u200c\u0633\u0627\u0632\u062f \u06a9\u0647 \u0627\u0632 \u0622\u0644\u06cc\u0627\u0698 \u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u06cc \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.xintaivalves.com\/fa\/blog\/technical-science\/super-duplex-ball-valve-chloride-resistance\/#Spec_checks_that_prevent_expensive_surprises\" >\u0628\u0631\u0631\u0633\u06cc \u0645\u0634\u062e\u0635\u0627\u062a \u0641\u0646\u06cc \u06a9\u0647 \u0627\u0632 \u063a\u0627\u0641\u0644\u06af\u06cc\u0631\u06cc\u200c\u0647\u0627\u06cc \u067e\u0631\u0647\u0632\u06cc\u0646\u0647 \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0645\u06cc\u200c\u06a9\u0646\u062f<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.xintaivalves.com\/fa\/blog\/technical-science\/super-duplex-ball-valve-chloride-resistance\/#Conclusion\" >\u0646\u062a\u06cc\u062c\u0647<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.xintaivalves.com\/fa\/blog\/technical-science\/super-duplex-ball-valve-chloride-resistance\/#3_Key_Takeaways\" >\u06f3 \u0646\u06a9\u062a\u0647 \u06a9\u0644\u06cc\u062f\u06cc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.xintaivalves.com\/fa\/blog\/technical-science\/super-duplex-ball-valve-chloride-resistance\/#FAQs\" >\u0633\u0648\u0627\u0644\u0627\u062a \u0645\u062a\u062f\u0627\u0648\u0644<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.xintaivalves.com\/fa\/blog\/technical-science\/super-duplex-ball-valve-chloride-resistance\/#What_is_Super_Duplex_2507_used_for\" >\u0633\u0648\u067e\u0631 \u062f\u0627\u067e\u0644\u06a9\u0633 \u06f2\u06f5\u06f0\u06f7 \u0628\u0631\u0627\u06cc \u0686\u0647 \u0645\u0648\u0627\u0631\u062f\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f\u061f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.xintaivalves.com\/fa\/blog\/technical-science\/super-duplex-ball-valve-chloride-resistance\/#What_is_chloride_stress_corrosion_cracking_SCC\" >\u062a\u0631\u06a9 \u062e\u0648\u0631\u062f\u06af\u06cc \u062a\u0646\u0634\u06cc \u0646\u0627\u0634\u06cc \u0627\u0632 \u062e\u0648\u0631\u062f\u06af\u06cc \u06a9\u0644\u0631\u06cc\u062f\u06cc (SCC) \u0686\u06cc\u0633\u062a\u061f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.xintaivalves.com\/fa\/blog\/technical-science\/super-duplex-ball-valve-chloride-resistance\/#Does_higher_PREN_always_mean_no_corrosion\" >\u0622\u06cc\u0627 PREN \u0628\u0627\u0644\u0627\u062a\u0631 \u0647\u0645\u06cc\u0634\u0647 \u0628\u0647 \u0645\u0639\u0646\u0627\u06cc \u0639\u062f\u0645 \u062e\u0648\u0631\u062f\u06af\u06cc \u0627\u0633\u062a\u061f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.xintaivalves.com\/fa\/blog\/technical-science\/super-duplex-ball-valve-chloride-resistance\/#Is_duplex_always_better_than_standard_stainless\" >\u0622\u06cc\u0627 \u062f\u0627\u067e\u0644\u06a9\u0633 \u0647\u0645\u06cc\u0634\u0647 \u0627\u0632 \u0627\u0633\u062a\u06cc\u0644 \u0636\u062f \u0632\u0646\u06af \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f \u0628\u0647\u062a\u0631 \u0627\u0633\u062a\u061f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.xintaivalves.com\/fa\/blog\/technical-science\/super-duplex-ball-valve-chloride-resistance\/#What_should_buyers_request_on_the_PO_to_control_risk\" >\u062e\u0631\u06cc\u062f\u0627\u0631\u0627\u0646 \u0628\u0631\u0627\u06cc \u06a9\u0646\u062a\u0631\u0644 \u0631\u06cc\u0633\u06a9 \u0628\u0627\u06cc\u062f \u062f\u0631 \u0633\u0641\u0627\u0631\u0634 \u062e\u0631\u06cc\u062f \u0686\u0647 \u0686\u06cc\u0632\u06cc \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u06a9\u0646\u0646\u062f\u061f<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\">\u06a9\u0644\u0631\u06cc\u062f\u0647\u0627 \u0628\u0631\u0627\u06cc \u0634\u06cc\u0631\u0622\u0644\u0627\u062a \u0645\u0636\u0631 \u0647\u0633\u062a\u0646\u062f. \u0622\u0646\u0647\u0627 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u0646\u062f \u062f\u0631 \u0634\u06a9\u0627\u0641\u200c\u0647\u0627\u06cc \u062a\u0646\u06af \u0642\u0631\u0627\u0631 \u06af\u06cc\u0631\u0646\u062f\u060c \u0632\u06cc\u0631 \u0631\u0633\u0648\u0628\u0627\u062a \u062c\u0645\u0639 \u0634\u0648\u0646\u062f \u0648 \u0628\u0647 \u0622\u0631\u0627\u0645\u06cc \u0646\u0648\u0639\u06cc \u0622\u0633\u06cc\u0628 \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u0646\u062f \u06a9\u0647 \u0645\u0646\u062c\u0631 \u0628\u0647 \u0646\u0634\u062a \u0648 \u062e\u0627\u0645\u0648\u0634\u06cc\u200c\u0647\u0627\u06cc \u0628\u0631\u0646\u0627\u0645\u0647\u200c\u0631\u06cc\u0632\u06cc \u0646\u0634\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0627\u06af\u0631 \u0633\u06cc\u0633\u062a\u0645 \u0634\u0645\u0627 \u0628\u0627 \u0622\u0628 \u062f\u0631\u06cc\u0627\u060c \u0622\u0628 \u0646\u0645\u06a9 \u06cc\u0627 \u0634\u0633\u062a\u0634\u0648\u06cc \u0645\u06a9\u0631\u0631 \u0633\u0631 \u0648 \u06a9\u0627\u0631 \u062f\u0627\u0631\u062f\u060c \u0627\u0646\u062a\u062e\u0627\u0628 \u0622\u0644\u06cc\u0627\u0698 \u0634\u0645\u0627 \u0645\u0633\u062a\u0642\u06cc\u0645\u0627\u064b \u0628\u0631 \u062e\u0637\u0631 \u0642\u0637\u0639 \u0628\u0631\u0642 \u0648 \u062d\u062c\u0645 \u06a9\u0627\u0631 \u062a\u0639\u0645\u06cc\u0631 \u0648 \u0646\u06af\u0647\u062f\u0627\u0631\u06cc \u062a\u0623\u062b\u06cc\u0631 \u0645\u06cc\u200c\u06af\u0630\u0627\u0631\u062f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u06cc\u06a9 \u0634\u06cc\u0631 \u062a\u0648\u067e\u06cc \u0627\u0632 \u062c\u0646\u0633 \u0627\u0633\u062a\u06cc\u0644 \u0636\u062f \u0632\u0646\u06af \u062f\u0631 \u06af\u0631\u06cc\u062f\u0647\u0627\u06cc \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u062f\u0631 \u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u06a9\u0627\u0631\u062e\u0627\u0646\u0647\u200c\u0647\u0627 \u0628\u0647 \u062e\u0648\u0628\u06cc \u06a9\u0627\u0631 \u06a9\u0646\u062f. \u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644\u060c \u062f\u0631 \u0634\u0631\u0627\u06cc\u0637 \u06a9\u0627\u0631 \u0628\u0627 \u06a9\u0644\u0631\u06cc\u062f \u0628\u0627\u0644\u0627\u060c \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u062f\u0631 \u0628\u0631\u0627\u0628\u0631 \u062a\u0631\u06a9 \u062e\u0648\u0631\u062f\u06af\u06cc \u0646\u0627\u0634\u06cc \u0627\u0632 \u062e\u0648\u0631\u062f\u06af\u06cc \u062a\u0646\u0634\u06cc \u06a9\u0644\u0631\u06cc\u062f (SCC) \u0622\u0633\u06cc\u0628\u200c\u067e\u0630\u06cc\u0631 \u0628\u0627\u0634\u062f. \u0622\u0644\u06cc\u0627\u0698\u0647\u0627\u06cc \u062f\u0627\u067e\u0644\u06a9\u0633 \u0648 \u0633\u0648\u067e\u0631 \u062f\u0627\u067e\u0644\u06a9\u0633 \u0627\u063a\u0644\u0628 \u0628\u0647 \u0627\u06cc\u0646 \u062f\u0644\u06cc\u0644 \u0627\u0646\u062a\u062e\u0627\u0628 \u0645\u06cc\u200c\u0634\u0648\u0646\u062f \u06a9\u0647 \u0645\u0642\u0627\u0648\u0645\u062a \u0628\u0647\u062a\u0631 \u062f\u0631 \u0628\u0631\u0627\u0628\u0631 \u06a9\u0644\u0631\u06cc\u062f \u0631\u0627 \u0628\u0627 \u0627\u0633\u062a\u062d\u06a9\u0627\u0645 \u0628\u0627\u0644\u0627\u062a\u0631 \u062a\u0631\u06a9\u06cc\u0628 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_chloride_SCC_looks_like_in_real_systems\"><\/span><strong>SCC \u06a9\u0644\u0631\u06cc\u062f\u06cc \u062f\u0631 \u0633\u06cc\u0633\u062a\u0645\u200c\u0647\u0627\u06cc \u0648\u0627\u0642\u0639\u06cc \u0686\u06af\u0648\u0646\u0647 \u0628\u0647 \u0646\u0638\u0631 \u0645\u06cc\u200c\u0631\u0633\u062f\u061f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_%E2%80%9Cgood_stainless%E2%80%9D_still_fails\"><\/span><strong>\u0686\u0631\u0627 \u201c\u0636\u062f \u0632\u0646\u06af \u062e\u0648\u0628\u201d \u0647\u0646\u0648\u0632 \u0647\u0645 \u0634\u06a9\u0633\u062a \u0645\u06cc\u200c\u062e\u0648\u0631\u062f\u061f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">SCC \u0647\u0645\u0627\u0646 \u0632\u0646\u06af\u200c\u0632\u062f\u06af\u06cc \u0639\u0645\u0648\u0645\u06cc \u0646\u06cc\u0633\u062a. \u0627\u06cc\u0646 \u062a\u0631\u06a9\u200c\u062e\u0648\u0631\u062f\u06af\u06cc \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u0632\u0645\u0627\u0646\u06cc \u0627\u06cc\u062c\u0627\u062f \u0634\u0648\u062f \u06a9\u0647 \u0633\u0647 \u0639\u0627\u0645\u0644 \u0628\u0627 \u0647\u0645 \u0638\u0627\u0647\u0631 \u0634\u0648\u0646\u062f:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u06a9\u0644\u0631\u06cc\u062f\u0647\u0627<\/strong> (\u0622\u0628 \u062f\u0631\u06cc\u0627\u060c \u0622\u0628 \u0634\u0648\u0631\u060c \u0647\u0648\u0627\u06cc \u0633\u0627\u062d\u0644\u06cc\u060c \u0634\u0633\u062a\u0634\u0648\u06cc \u0633\u0637\u062d\u06cc)<\/li>\n\n\n\n<li><strong>\u0627\u0633\u062a\u0631\u0633<\/strong> (\u0628\u0627\u0631\u0647\u0627\u06cc \u0641\u0634\u0627\u0631\u06cc\u060c \u062a\u0646\u0634 \u0645\u0648\u0646\u062a\u0627\u0698\u060c \u0627\u0631\u062a\u0639\u0627\u0634)<\/li>\n\n\n\n<li><strong>\u062f\u0631\u062c\u0647 \u062d\u0631\u0627\u0631\u062a<\/strong> (\u0647\u06cc\u062a \u062a\u0631\u06cc\u0633\u06cc\u0646\u06af\u060c \u0686\u0631\u062e\u0647\u200c\u0647\u0627\u06cc \u06af\u0631\u0645\/\u0633\u0631\u062f\u060c \u0633\u0631\u0648\u06cc\u0633 \u06af\u0631\u0645)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u062f\u0631 \u0646\u0645\u06a9\u200c\u0632\u062f\u0627\u06cc\u06cc \u0648 \u0646\u0641\u062a \u0648 \u06af\u0627\u0632 \u0641\u0631\u0627\u0633\u0627\u062d\u0644\u06cc\u060c \u0627\u06cc\u0646 \u0634\u0631\u0627\u06cc\u0637 \u0627\u063a\u0644\u0628 \u0628\u0627 \u0647\u0645 \u0647\u0645\u067e\u0648\u0634\u0627\u0646\u06cc \u062f\u0627\u0631\u0646\u062f\u060c \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u06af\u0631\u06cc\u062f\u0647\u0627\u06cc \u062f\u0627\u067e\u0644\u06a9\u0633 \u0648 \u0633\u0648\u067e\u0631 \u062f\u0627\u067e\u0644\u06a9\u0633 \u0628\u0631\u0627\u06cc \u06a9\u0627\u0631\u0628\u0631\u062f\u0647\u0627\u06cc \u0631\u0648 \u0628\u0647 \u0622\u0628 \u062f\u0631\u06cc\u0627 \u0631\u0627\u06cc\u062c \u0647\u0633\u062a\u0646\u062f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0628\u0631\u0627\u06cc \u0645\u0648\u0642\u0639\u06cc\u062a \u06cc\u0627\u0628\u06cc \u0627\u0633\u062a\u06cc\u0644 \u0648 \u062f\u0648\u0628\u0644\u06a9\u0633 Xintai\u060c \u0628\u0647 \u0645\u0648\u0627\u0631\u062f \u0632\u06cc\u0631 \u0645\u0631\u0627\u062c\u0639\u0647 \u06a9\u0646\u06cc\u062f: <a href=\"https:\/\/www.xintaivalves.com\/fa\/custom-stainless-steel-ball-valves\/\">\u0634\u06cc\u0631\u0647\u0627\u06cc \u062a\u0648\u067e\u06cc \u0641\u0648\u0644\u0627\u062f\u06cc \u0636\u062f \u0632\u0646\u06af \u0633\u0641\u0627\u0631\u0634\u06cc<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"PREN_a_quick_way_to_compare_chloride_resistance\"><\/span><strong>PREN: \u0631\u0648\u0634\u06cc \u0633\u0631\u06cc\u0639 \u0628\u0631\u0627\u06cc \u0645\u0642\u0627\u06cc\u0633\u0647 \u0645\u0642\u0627\u0648\u0645\u062a \u062f\u0631 \u0628\u0631\u0627\u0628\u0631 \u06a9\u0644\u0631\u06cc\u062f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">PREN (\u0639\u062f\u062f \u0645\u0639\u0627\u062f\u0644 \u0645\u0642\u0627\u0648\u0645\u062a \u062f\u0631 \u0628\u0631\u0627\u0628\u0631 \u062e\u0648\u0631\u062f\u06af\u06cc \u062d\u0641\u0631\u0647\u200c\u0627\u06cc) \u06cc\u06a9 \u0634\u0627\u062e\u0635 \u0633\u0627\u062f\u0647 \u0627\u0633\u062a \u06a9\u0647 \u0645\u0631\u062f\u0645 \u0628\u0631\u0627\u06cc \u0645\u0642\u0627\u06cc\u0633\u0647 \u0645\u0642\u0627\u0648\u0645\u062a \u062f\u0631 \u0628\u0631\u0627\u0628\u0631 \u062e\u0648\u0631\u062f\u06af\u06cc \u062d\u0641\u0631\u0647\u200c\u0627\u06cc \u0648 \u062e\u0648\u0631\u062f\u06af\u06cc \u0634\u06a9\u0627\u0641\u06cc \u0627\u0632 \u0622\u0646 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f. \u0627\u06cc\u0646 \u0634\u0627\u062e\u0635 \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0628\u0647 \u0635\u0648\u0631\u062a \u0632\u06cc\u0631 \u0646\u0648\u0634\u062a\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>PREN = %Cr + 3.3\u00d7%Mo + 16\u00d7%N<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_higher_PREN_suggests\"><\/span><strong>PREN \u0628\u0627\u0644\u0627\u062a\u0631 \u0646\u0634\u0627\u0646 \u062f\u0647\u0646\u062f\u0647 \u0686\u06cc\u0633\u062a\u061f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u062f\u0631 \u0633\u0631\u0648\u06cc\u0633 \u06a9\u0644\u0631\u06cc\u062f\u06cc\u060c PREN \u0628\u0627\u0644\u0627\u062a\u0631 \u0627\u063a\u0644\u0628 \u0628\u0647 \u0645\u0642\u0627\u0648\u0645\u062a \u0628\u0647\u062a\u0631 \u062f\u0631 \u0628\u0631\u0627\u0628\u0631 &quot;\u0622\u0633\u06cc\u0628 \u0627\u0648\u0644\u06cc\u0647&quot; (\u062d\u0645\u0644\u0647 \u062d\u0641\u0631\u0647\u200c\u0627\u06cc\/\u0634\u06a9\u0627\u0641\u06cc) \u0627\u0634\u0627\u0631\u0647 \u062f\u0627\u0631\u062f \u06a9\u0647 \u0628\u0639\u062f\u0627\u064b \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u0628\u0647 \u0646\u0634\u062a\u06cc \u0648 \u062a\u0631\u06a9 \u062e\u0648\u0631\u062f\u06af\u06cc \u0645\u0646\u062c\u0631 \u0634\u0648\u062f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0645\u062d\u062f\u0648\u062f\u0647\u200c\u0647\u0627\u06cc \u0645\u0631\u062c\u0639 \u0645\u0639\u0645\u0648\u0644 \u0628\u0631\u0627\u06cc \u062e\u0627\u0646\u0648\u0627\u062f\u0647\u200c\u0647\u0627\u06cc \u062f\u0648\u0628\u0644\u06a9\u0633 \u0631\u0627\u06cc\u062c:<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>\u062e\u0627\u0646\u0648\u0627\u062f\u0647 \u062f\u0648\u0628\u0644\u06a9\u0633 (\u0645\u062b\u0627\u0644 \u0646\u0627\u0645\u06af\u0630\u0627\u0631\u06cc)<\/strong><\/td><td><strong>\u0646\u0634\u0627\u0646\u06af\u0631 PREN \u0645\u0639\u0645\u0648\u0644\u06cc<\/strong><\/td><\/tr><tr><td>\u06a9\u0644\u0627\u0633 \u06f2\u06f2\u06f0\u06f5 (\u062f\u0648\u0628\u0644\u06a9\u0633)<\/td><td>~\u06f3\u06f0\u2013\u06f3\u06f8<\/td><\/tr><tr><td>\u06a9\u0644\u0627\u0633 \u06f2\u06f5\u06f0\u06f7 (\u0633\u0648\u067e\u0631 \u062f\u0648\u0628\u0644\u06a9\u0633)<\/td><td>&gt;40<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_use_PREN_in_procurement\"><\/span><strong>\u0646\u062d\u0648\u0647 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 PREN \u062f\u0631 \u062a\u062f\u0627\u0631\u06a9\u0627\u062a<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0627\u0632 PREN \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06cc\u06a9 \u0645\u0631\u062d\u0644\u0647 \u063a\u0631\u0628\u0627\u0644\u06af\u0631\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f\u060c \u0633\u067e\u0633 \u062c\u0632\u0626\u06cc\u0627\u062a\u06cc \u0631\u0627 \u06a9\u0647 \u062f\u0631 \u0648\u0627\u0642\u0639 \u0639\u0645\u0644\u06a9\u0631\u062f \u0631\u0627 \u06a9\u0646\u062a\u0631\u0644 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f\u060c \u062a\u0623\u06cc\u06cc\u062f \u06a9\u0646\u06cc\u062f:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0634\u06cc\u0645\u06cc \u0631\u0648\u06cc MTC\u0647\u0627 (\u0645\u062d\u062f\u0648\u062f\u0647\u200c\u0647\u0627\u06cc Cr\/Mo\/N)<\/li>\n\n\n\n<li>\u0634\u0631\u0627\u06cc\u0637 \u0639\u0645\u0644\u06cc\u0627\u062a \u062d\u0631\u0627\u0631\u062a\u06cc<\/li>\n\n\n\n<li>\u06a9\u0646\u062a\u0631\u0644\u200c\u0647\u0627\u06cc \u0631\u0648\u0634 \u062c\u0648\u0634\u06a9\u0627\u0631\u06cc \u0628\u0631\u0627\u06cc \u06af\u0631\u06cc\u062f\u0647\u0627\u06cc \u062f\u0648\u0628\u0644\u06a9\u0633<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Where_super_duplex_2507_makes_sense\"><\/span><strong>\u062c\u0627\u06cc\u06cc \u06a9\u0647 \u0633\u0648\u067e\u0631 \u062f\u0627\u067e\u0644\u06a9\u0633 \u06f2\u06f5\u06f0\u06f7 \u0645\u0646\u0637\u0642\u06cc \u0627\u0633\u062a<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0633\u0648\u067e\u0631 \u062f\u0627\u067e\u0644\u06a9\u0633 \u0632\u0645\u0627\u0646\u06cc \u0628\u06cc\u0634\u062a\u0631\u06cc\u0646 \u06a9\u0627\u0631\u0628\u0631\u062f \u0631\u0627 \u062f\u0627\u0631\u062f \u06a9\u0647 \u06a9\u0644\u0631\u06cc\u062f\u0647\u0627 \u0632\u06cc\u0627\u062f \u0628\u0627\u0634\u0646\u062f\u060c, <em>\u0648<\/em> \u0647\u0632\u06cc\u0646\u0647 \u0634\u06a9\u0633\u062a \u0628\u0627\u0644\u0627\u0633\u062a.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Typical_%E2%80%9Cyes%E2%80%9D_scenarios\"><\/span><strong>\u0633\u0646\u0627\u0631\u06cc\u0648\u0647\u0627\u06cc \u0645\u0639\u0645\u0648\u0644 \u201c\u0628\u0644\u0647\u201d<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u062e\u0637\u0648\u0637 \u0648\u0631\u0648\u062f\u06cc \u0622\u0628 \u062f\u0631\u06cc\u0627 \u0648 \u0622\u0628 \u0646\u0645\u06a9 (\u0646\u0645\u06a9 \u0632\u062f\u0627\u06cc\u06cc)<\/li>\n\n\n\n<li>\u0633\u0637\u0648\u062d \u0628\u0627\u0644\u0627\u06cc\u06cc \u0641\u0631\u0627\u0633\u0627\u062d\u0644\u06cc\u060c \u0645\u0646\u0627\u0637\u0642 \u067e\u0627\u0634\u0634 \u0622\u0628 \u0648 \u0634\u0633\u062a\u0647 \u0634\u062f\u0646 \u062a\u0648\u0633\u0637 \u06a9\u0644\u0631\u0627\u06cc\u062f<\/li>\n\n\n\n<li>\u062e\u062f\u0645\u0627\u062a \u0634\u06cc\u0645\u06cc\u0627\u06cc\u06cc \u0628\u0627 \u0645\u062d\u06cc\u0637\u200c\u0647\u0627\u06cc \u062d\u0627\u0648\u06cc \u06a9\u0644\u0631\u06cc\u062f<\/li>\n\n\n\n<li>\u0633\u06cc\u0633\u062a\u0645\u200c\u0647\u0627\u06cc \u0628\u0627 \u0633\u0631\u0639\u062a \u0628\u0627\u0644\u0627\u062a\u0631 \u06a9\u0647 \u062f\u0631 \u0622\u0646\u0647\u0627 \u062e\u0637\u0631 \u0634\u06a9\u0627\u0641 \u0627\u0641\u0632\u0627\u06cc\u0634 \u0645\u06cc\u200c\u06cc\u0627\u0628\u062f<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Typical_%E2%80%9Cmaybe%E2%80%9D_scenarios\"><\/span><strong>\u0633\u0646\u0627\u0631\u06cc\u0648\u0647\u0627\u06cc \u0645\u0639\u0645\u0648\u0644 \u201c\u0634\u0627\u06cc\u062f\u201d<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u06a9\u0644\u0631\u06cc\u062f\u0647\u0627\u06cc \u0645\u062a\u0646\u0627\u0648\u0628 \u062f\u0631 \u062f\u0645\u0627\u06cc \u067e\u0627\u06cc\u06cc\u0646<\/li>\n\n\n\n<li>\u062a\u0627\u0633\u06cc\u0633\u0627\u062a \u062f\u0627\u062e\u0644\u06cc \u0628\u0627 \u0634\u06cc\u0645\u06cc \u067e\u0627\u06cc\u062f\u0627\u0631 \u0622\u0628<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0627\u06af\u0631 \u0637\u0631\u0627\u062d\u06cc \u0634\u0645\u0627 \u0646\u06cc\u0632 \u062a\u062d\u062a \u0641\u0634\u0627\u0631 \u0627\u0633\u062a\u060c \u0645\u0648\u0627\u0631\u062f \u0632\u06cc\u0631 \u0631\u0627 \u0628\u062e\u0648\u0627\u0646\u06cc\u062f: <a href=\"https:\/\/www.xintaivalves.com\/fa\/blog\/everything-about-high-pressure-valves\/\">\u0647\u0645\u0647 \u0686\u06cc\u0632 \u062f\u0631\u0628\u0627\u0631\u0647 \u0634\u06cc\u0631\u0647\u0627\u06cc \u0641\u0634\u0627\u0631 \u0628\u0627\u0644\u0627<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Valve_builds_choices_that_support_the_alloy\"><\/span><strong>\u0648\u0644\u0648 \u06af\u0632\u06cc\u0646\u0647\u200c\u0647\u0627\u06cc\u06cc \u0645\u06cc\u200c\u0633\u0627\u0632\u062f \u06a9\u0647 \u0627\u0632 \u0622\u0644\u06cc\u0627\u0698 \u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u06cc \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0627\u0646\u062a\u062e\u0627\u0628 \u0622\u0644\u06cc\u0627\u0698 \u06a9\u0645\u06a9 \u0645\u06cc\u200c\u06a9\u0646\u062f\u060c \u0627\u0645\u0627 \u0637\u0631\u0627\u062d\u06cc \u0648 \u0645\u0633\u062a\u0646\u062f\u0633\u0627\u0632\u06cc \u0647\u0646\u0648\u0632 \u062a\u0639\u06cc\u06cc\u0646 \u0645\u06cc\u200c\u06a9\u0646\u0646\u062f \u06a9\u0647 \u0622\u06cc\u0627 \u06cc\u06a9 \u0634\u06cc\u0631 \u062f\u0631 \u0645\u06cc\u062f\u0627\u0646 \u0639\u0645\u0644 \u0639\u0645\u0644\u06a9\u0631\u062f \u062e\u0648\u0628\u06cc \u062f\u0627\u0631\u062f \u06cc\u0627 \u062e\u06cc\u0631.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Spec_checks_that_prevent_expensive_surprises\"><\/span><strong>\u0628\u0631\u0631\u0633\u06cc \u0645\u0634\u062e\u0635\u0627\u062a \u0641\u0646\u06cc \u06a9\u0647 \u0627\u0632 \u063a\u0627\u0641\u0644\u06af\u06cc\u0631\u06cc\u200c\u0647\u0627\u06cc \u067e\u0631\u0647\u0632\u06cc\u0646\u0647 \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0645\u06cc\u200c\u06a9\u0646\u062f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0633\u0627\u0632\u06af\u0627\u0631\u06cc \u0646\u0634\u06cc\u0645\u0646\u06af\u0627\u0647 \u0648 \u0622\u0628\u200c\u0628\u0646\u062f \u0628\u0627 \u0622\u0628 \u0646\u0645\u06a9 \u0648 \u0645\u0648\u0627\u062f \u0634\u0648\u06cc\u0646\u062f\u0647<\/li>\n\n\n\n<li>\u06a9\u0646\u062a\u0631\u0644 \u0634\u06a9\u0627\u0641 (\u0647\u0646\u062f\u0633\u0647\u060c \u0642\u0627\u0628\u0644\u06cc\u062a \u0632\u0647\u06a9\u0634\u06cc\u060c \u0631\u0633\u0648\u0628\u0627\u062a)<\/li>\n\n\n\n<li>\u0645\u0633\u062a\u0646\u062f\u0627\u062a \u062a\u0633\u062a \u0641\u0634\u0627\u0631 + NDT<\/li>\n\n\n\n<li>\u0642\u0627\u0628\u0644\u06cc\u062a \u0631\u062f\u06cc\u0627\u0628\u06cc \u0627\u0632 \u0639\u062f\u062f \u062d\u0631\u0627\u0631\u062a\u06cc \u062a\u0627 \u0634\u06cc\u0631 \u0646\u0647\u0627\u06cc\u06cc<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0627\u06af\u0631 \u0645\u0633\u06cc\u0631\u0647\u0627\u06cc \u062a\u0648\u0644\u06cc\u062f \u0631\u0627 \u0645\u0642\u0627\u06cc\u0633\u0647 \u0645\u06cc\u200c\u06a9\u0646\u06cc\u062f\u060c \u06cc\u06a9 \u0634\u06cc\u0631 \u062a\u0648\u067e\u06cc \u0641\u0648\u0644\u0627\u062f\u06cc \u0641\u0648\u0631\u062c \u0634\u062f\u0647 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u06af\u0632\u06cc\u0646\u0647\u200c\u0627\u06cc \u0642\u0648\u06cc \u0628\u0627\u0634\u062f \u06a9\u0647 \u062f\u0631 \u0622\u0646 \u06cc\u06a9\u067e\u0627\u0631\u0686\u06af\u06cc \u0648 \u0639\u0645\u0644\u06a9\u0631\u062f \u0641\u0634\u0627\u0631 \u0627\u0647\u0645\u06cc\u062a \u062f\u0627\u0631\u062f. \u0628\u0628\u06cc\u0646\u06cc\u062f: <a href=\"https:\/\/www.xintaivalves.com\/fa\/blog\/ball-valve\/forged-ball-valves-vs-casting-ball-valves\/\">\u0634\u06cc\u0631\u0647\u0627\u06cc \u062a\u0648\u067e\u06cc \u0622\u0647\u0646\u06af\u0631\u06cc \u0634\u062f\u0647 \u062f\u0631 \u0645\u0642\u0627\u0628\u0644 \u0634\u06cc\u0631\u0647\u0627\u06cc \u062a\u0648\u067e\u06cc \u0631\u06cc\u062e\u062a\u0647 \u06af\u0631\u06cc \u0634\u062f\u0647<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0628\u0631\u0627\u06cc \u0645\u062b\u0627\u0644\u060c \u0628\u0647 \u06cc\u06a9 \u062f\u0633\u062a\u0647 \u0628\u0646\u062f\u06cc \u0645\u062d\u0635\u0648\u0644 \u0645\u0631\u0627\u062c\u0639\u0647 \u06a9\u0646\u06cc\u062f: <a href=\"https:\/\/www.xintaivalves.com\/fa\/product\/forged-floating-ball-valve\/\">\u0634\u06cc\u0631 \u062a\u0648\u067e\u06cc \u0634\u0646\u0627\u0648\u0631 \u0641\u0648\u0631\u062c<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0647\u0645\u0686\u0646\u06cc\u0646\u060c \u0628\u0631\u0627\u06cc \u06a9\u0627\u0631\u0628\u0631\u062f\u0647\u0627\u06cc \u0633\u0646\u06af\u06cc\u0646 \u06a9\u0644\u0631\u06cc\u062f \u0648 \u0641\u0634\u0627\u0631 \u0628\u0627\u0644\u0627\u060c \u0645\u0634\u062e\u0635\u0627\u062a \u0634\u06cc\u0631 \u062a\u0648\u067e\u06cc \u0641\u0634\u0627\u0631 \u0628\u0627\u0644\u0627 \u0628\u0627\u06cc\u062f \u0634\u0627\u0645\u0644 \u0637\u0631\u0627\u062d\u06cc \u0646\u0634\u06cc\u0645\u0646\u06af\u0627\u0647\u060c \u0631\u062a\u0628\u0647\u200c\u0628\u0646\u062f\u06cc \u0628\u062f\u0646\u0647 \u0648 \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f\u0647\u0627\u06cc \u0622\u0632\u0645\u0627\u06cc\u0634 \u0628\u0627\u0634\u062f\u060c \u0646\u0647 \u0641\u0642\u0637 \u0627\u0646\u062a\u062e\u0627\u0628 \u0622\u0644\u06cc\u0627\u0698.<\/p>\n\n\n\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n  \n  <title>\u0645\u062d\u0635\u0648\u0644 \u0628\u0631\u062c\u0633\u062a\u0647 \u0642\u0647\u0631\u0645\u0627\u0646<\/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\/fa\/ball-valve-collection\/\" target=\"_blank\">\n  <img decoding=\"async\" class=\"hero-image\" src=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2022\/01\/xt21-300x200.webp\" alt=\"\u0645\u062c\u0645\u0648\u0639\u0647 \u0634\u06cc\u0631 \u062a\u0648\u067e\u06cc\">\n  <div class=\"hero-content\">\n    <div class=\"hero-title\">\u0645\u062c\u0645\u0648\u0639\u0647 \u0634\u06cc\u0631 \u062a\u0648\u067e\u06cc<\/div>\n    <div class=\"hero-description\">\u0645\u062c\u0645\u0648\u0639\u0647 \u0634\u06cc\u0631\u0647\u0627\u06cc \u062a\u0648\u067e\u06cc \u0645\u0627 \u0631\u0627 \u0628\u0631\u0627\u06cc \u0645\u0635\u0627\u0631\u0641 \u0635\u0646\u0639\u062a\u06cc \u0628\u0631\u0631\u0633\u06cc \u06a9\u0646\u06cc\u062f. \u062f\u0627\u0631\u0627\u06cc \u06af\u0648\u0627\u0647\u06cc\u0646\u0627\u0645\u0647 API \u0648 ISO\u060c \u0645\u0648\u062c\u0648\u062f \u062f\u0631 \u062c\u0646\u0633\u200c\u0647\u0627\u06cc \u0641\u0648\u0644\u0627\u062f \u0631\u06cc\u062e\u062a\u0647\u200c\u06af\u0631\u06cc\u060c \u0641\u0648\u0644\u0627\u062f \u0636\u062f \u0632\u0646\u06af \u0648 \u0628\u0631\u0646\u062c. \u0627\u06cc\u062f\u0647\u200c\u0622\u0644 \u0628\u0631\u0627\u06cc \u062a\u0648\u0632\u06cc\u0639\u200c\u06a9\u0646\u0646\u062f\u06af\u0627\u0646 \u0648 \u062a\u0648\u0644\u06cc\u062f\u06a9\u0646\u0646\u062f\u06af\u0627\u0646 \u0627\u0635\u0644\u06cc \u062a\u062c\u0647\u06cc\u0632\u0627\u062a (OEM) \u062c\u0647\u0627\u0646\u06cc.<\/div>\n    <span class=\"hero-link\">\u0645\u0634\u0627\u0647\u062f\u0647 \u0645\u062d\u0635\u0648\u0644<\/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>\u0646\u062a\u06cc\u062c\u0647<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0633\u0648\u067e\u0631 \u062f\u0627\u067e\u0644\u06a9\u0633 \u06f2\u06f5\u06f0\u06f7 \u0627\u063a\u0644\u0628 \u0628\u0631\u0627\u06cc \u06a9\u0627\u0647\u0634 \u062e\u0631\u0627\u0628\u06cc\u200c\u0647\u0627\u06cc \u0645\u0631\u062a\u0628\u0637 \u0628\u0627 \u062e\u0648\u0631\u062f\u06af\u06cc \u062f\u0631 \u0645\u062d\u06cc\u0637\u200c\u0647\u0627\u06cc \u06a9\u0644\u0631\u06cc\u062f\u06cc \u0645\u0634\u062e\u0635 \u0645\u06cc\u200c\u0634\u0648\u062f. \u0627\u0631\u0632\u0634 \u0627\u06cc\u0646 \u06a9\u0627\u0631\u060c \u06a9\u0627\u0647\u0634 \u0646\u0634\u062a\u06cc\u060c \u06a9\u0627\u0647\u0634 \u062e\u0627\u0645\u0648\u0634\u06cc\u200c\u0647\u0627\u06cc \u0627\u0636\u0637\u0631\u0627\u0631\u06cc \u0648 \u0627\u0641\u0632\u0627\u06cc\u0634 \u0686\u0631\u062e\u0647\u200c\u0647\u0627\u06cc \u062a\u0639\u0648\u06cc\u0636 \u062f\u0631 \u0645\u062d\u06cc\u0637\u200c\u0647\u0627\u06cc\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0628\u0647 \u0622\u0644\u06cc\u0627\u0698\u0647\u0627\u06cc \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f \u0622\u0633\u06cc\u0628 \u0645\u06cc\u200c\u0631\u0633\u0627\u0646\u0646\u062f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0627\u06af\u0631 \u0642\u0631\u0627\u0631 \u06af\u0631\u0641\u062a\u0646 \u062f\u0631 \u0645\u0639\u0631\u0636 \u06a9\u0644\u0631\u06cc\u062f \u0628\u0647 \u0637\u0648\u0631 \u0645\u06a9\u0631\u0631 \u0627\u062a\u0641\u0627\u0642 \u0628\u06cc\u0641\u062a\u062f\u060c \u06cc\u06a9 \u0634\u06cc\u0631 \u062a\u0648\u067e\u06cc \u0627\u0632 \u062c\u0646\u0633 \u0627\u0633\u062a\u06cc\u0644 \u0636\u062f \u0632\u0646\u06af \u062a\u0648\u0644\u06cc\u062f \u0634\u062f\u0647 \u062f\u0631 \u06af\u0631\u06cc\u062f\u0647\u0627\u06cc \u0633\u0648\u067e\u0631 \u062f\u0627\u067e\u0644\u06a9\u0633 \u06cc\u06a9\u06cc \u0627\u0632 \u0645\u0633\u062a\u0642\u06cc\u0645\u200c\u062a\u0631\u06cc\u0646 \u0631\u0627\u0647\u200c\u0647\u0627 \u0628\u0631\u0627\u06cc \u06a9\u0627\u0647\u0634 \u062e\u0637\u0631 \u062e\u0631\u0627\u0628\u06cc \u062f\u0631 \u0646\u0645\u06a9\u200c\u0632\u062f\u0627\u06cc\u06cc \u0648 \u0648\u0638\u0627\u06cc\u0641 \u0641\u0631\u0627\u0633\u0627\u062d\u0644\u06cc \u0627\u0633\u062a.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Key_Takeaways\"><\/span><strong>\u06f3 \u0646\u06a9\u062a\u0647 \u06a9\u0644\u06cc\u062f\u06cc<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u062a\u0631\u06a9 \u062e\u0648\u0631\u062f\u06af\u06cc \u062a\u0646\u0634\u06cc \u0646\u0627\u0634\u06cc \u0627\u0632 \u06a9\u0644\u0631\u06cc\u062f \u062a\u0648\u0633\u0637 \u0686\u0631\u062e\u0647\u200c\u0647\u0627\u06cc \u06a9\u0644\u0631\u06cc\u062f\u060c \u062a\u0646\u0634 \u0648 \u062f\u0645\u0627 \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc\u200c\u0634\u0648\u062f\u060c \u0646\u0647 \u0631\u0648\u06cc\u062f\u0627\u062f\u0647\u0627\u06cc \u062a\u0635\u0627\u062f\u0641\u06cc.<\/li>\n\n\n\n<li>PREN \u0628\u0647 \u063a\u0631\u0628\u0627\u0644\u06af\u0631\u06cc \u0633\u0631\u06cc\u0639 \u0622\u0644\u06cc\u0627\u0698\u0647\u0627 \u06a9\u0645\u06a9 \u0645\u06cc\u200c\u06a9\u0646\u062f\u061b \u06af\u0631\u06cc\u062f\u0647\u0627\u06cc \u0633\u0648\u067e\u0631 \u062f\u0627\u067e\u0644\u06a9\u0633 \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0628\u0627\u0644\u0627\u06cc \u06f4\u06f0 \u0647\u0633\u062a\u0646\u062f.<\/li>\n\n\n\n<li>\u0627\u0631\u0632\u0634 \u0628\u0644\u0646\u062f\u0645\u062f\u062a \u0632\u0645\u0627\u0646\u06cc \u0628\u0647\u0628\u0648\u062f \u0645\u06cc\u200c\u06cc\u0627\u0628\u062f \u06a9\u0647 \u0622\u0644\u06cc\u0627\u0698\u060c \u062c\u0632\u0626\u06cc\u0627\u062a \u0637\u0631\u0627\u062d\u06cc \u0648 \u0645\u0633\u062a\u0646\u062f\u0627\u062a \u0628\u0627 \u062e\u062f\u0645\u0627\u062a \u0627\u0631\u0627\u0626\u0647 \u0634\u062f\u0647 \u0645\u0637\u0627\u0628\u0642\u062a \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u0646\u062f.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\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 wp-element-button\" href=\"https:\/\/www.xintaivalves.com\/fa\/contact\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u062f\u0631\u06cc\u0627\u0641\u062a \u067e\u06cc\u0634 \u0641\u0627\u06a9\u062a\u0648\u0631<\/a><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"FAQs\"><\/span><strong>\u0633\u0648\u0627\u0644\u0627\u062a \u0645\u062a\u062f\u0627\u0648\u0644<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_Super_Duplex_2507_used_for\"><\/span><strong>\u0633\u0648\u067e\u0631 \u062f\u0627\u067e\u0644\u06a9\u0633 \u06f2\u06f5\u06f0\u06f7 \u0628\u0631\u0627\u06cc \u0686\u0647 \u0645\u0648\u0627\u0631\u062f\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f\u061f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0628\u0631\u0627\u06cc \u0645\u062d\u06cc\u0637\u200c\u0647\u0627\u06cc \u062f\u0627\u0631\u0627\u06cc \u06a9\u0644\u0631\u06cc\u062f \u0632\u06cc\u0627\u062f \u0645\u0627\u0646\u0646\u062f \u0633\u06cc\u0633\u062a\u0645\u200c\u0647\u0627\u06cc \u0622\u0628 \u062f\u0631\u06cc\u0627 \u0648 \u0633\u0631\u0648\u06cc\u0633\u200c\u0647\u0627\u06cc \u0646\u0645\u06a9\u200c\u0632\u062f\u0627\u06cc\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_chloride_stress_corrosion_cracking_SCC\"><\/span><strong>\u062a\u0631\u06a9 \u062e\u0648\u0631\u062f\u06af\u06cc \u062a\u0646\u0634\u06cc \u0646\u0627\u0634\u06cc \u0627\u0632 \u062e\u0648\u0631\u062f\u06af\u06cc \u06a9\u0644\u0631\u06cc\u062f\u06cc (SCC) \u0686\u06cc\u0633\u062a\u061f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0627\u06cc\u0646 \u062a\u0631\u06a9 \u062e\u0648\u0631\u062f\u06af\u06cc \u0646\u0627\u0634\u06cc \u0627\u0632 \u0642\u0631\u0627\u0631 \u06af\u0631\u0641\u062a\u0646 \u062f\u0631 \u0645\u0639\u0631\u0636 \u06a9\u0644\u0631\u06cc\u062f \u0628\u0647 \u0639\u0644\u0627\u0648\u0647 \u062a\u0646\u0634 \u06a9\u0634\u0634\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0627\u063a\u0644\u0628 \u0628\u0627 \u062f\u0645\u0627 \u0648 \u0686\u0631\u062e\u0647 \u062a\u0633\u0631\u06cc\u0639 \u0645\u06cc\u200c\u0634\u0648\u062f.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Does_higher_PREN_always_mean_no_corrosion\"><\/span><strong>\u0622\u06cc\u0627 PREN \u0628\u0627\u0644\u0627\u062a\u0631 \u0647\u0645\u06cc\u0634\u0647 \u0628\u0647 \u0645\u0639\u0646\u0627\u06cc \u0639\u062f\u0645 \u062e\u0648\u0631\u062f\u06af\u06cc \u0627\u0633\u062a\u061f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u062e\u06cc\u0631. PREN \u0631\u0627\u0647\u0646\u0645\u0627\u06cc\u06cc \u0628\u0631\u0627\u06cc \u0645\u0642\u0627\u0648\u0645\u062a \u062f\u0631 \u0628\u0631\u0627\u0628\u0631 \u062d\u0641\u0631\u0647\u200c\u062f\u0627\u0631 \u0634\u062f\u0646 \u0648 \u062a\u0631\u06a9\u200c\u062e\u0648\u0631\u062f\u06af\u06cc \u0627\u0633\u062a. \u0639\u0645\u0644\u06a9\u0631\u062f \u0647\u0646\u0648\u0632 \u0628\u0647 \u0634\u06cc\u0645\u06cc\u060c \u062f\u0645\u0627\u060c \u0631\u0633\u0648\u0628\u0627\u062a \u0648 \u06a9\u0646\u062a\u0631\u0644\u200c\u0647\u0627\u06cc \u0633\u0627\u062e\u062a \u0628\u0633\u062a\u06af\u06cc \u062f\u0627\u0631\u062f.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Is_duplex_always_better_than_standard_stainless\"><\/span><strong>\u0622\u06cc\u0627 \u062f\u0627\u067e\u0644\u06a9\u0633 \u0647\u0645\u06cc\u0634\u0647 \u0627\u0632 \u0627\u0633\u062a\u06cc\u0644 \u0636\u062f \u0632\u0646\u06af \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f \u0628\u0647\u062a\u0631 \u0627\u0633\u062a\u061f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0646\u0647 \u0647\u0645\u06cc\u0634\u0647. \u062f\u0627\u067e\u0644\u06a9\u0633 \u0632\u0645\u0627\u0646\u06cc \u0628\u06cc\u0634\u062a\u0631\u06cc\u0646 \u0627\u0631\u0632\u0634 \u0631\u0627 \u062f\u0627\u0631\u062f \u06a9\u0647 \u06a9\u0644\u0631\u06cc\u062f\u0647\u0627 \u0648 \u0647\u0632\u06cc\u0646\u0647 \u062e\u0631\u0627\u0628\u06cc \u0628\u0627\u0644\u0627 \u0628\u0627\u0634\u062f. \u06af\u0631\u06cc\u062f\u0647\u0627\u06cc \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u062f\u0631 \u0634\u0631\u0627\u06cc\u0637 \u06a9\u0627\u0631\u06cc \u0645\u0644\u0627\u06cc\u0645 \u0645\u0646\u0627\u0633\u0628 \u0628\u0627\u0634\u0646\u062f.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_should_buyers_request_on_the_PO_to_control_risk\"><\/span><strong>\u062e\u0631\u06cc\u062f\u0627\u0631\u0627\u0646 \u0628\u0631\u0627\u06cc \u06a9\u0646\u062a\u0631\u0644 \u0631\u06cc\u0633\u06a9 \u0628\u0627\u06cc\u062f \u062f\u0631 \u0633\u0641\u0627\u0631\u0634 \u062e\u0631\u06cc\u062f \u0686\u0647 \u0686\u06cc\u0632\u06cc \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u06a9\u0646\u0646\u062f\u061f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">MTC\u0647\u0627\u060c \u0642\u0627\u0628\u0644\u06cc\u062a \u0631\u062f\u06cc\u0627\u0628\u06cc \u0639\u062f\u062f \u062d\u0631\u0627\u0631\u062a\u06cc\u060c \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f\u0647\u0627\u06cc \u0622\u0632\u0645\u0627\u06cc\u0634\u060c \u0627\u0644\u0632\u0627\u0645\u0627\u062a NDT \u0648 \u0645\u0634\u062e\u0635\u0627\u062a \u0645\u0648\u0627\u062f \u0646\u0634\u06cc\u0645\u0646\u06af\u0627\u0647\/\u0622\u0628\u200c\u0628\u0646\u062f \u0634\u0641\u0627\u0641.<\/p>","protected":false},"excerpt":{"rendered":"<p>Chlorides are hard on valves. They can sit in tight gaps, build up under deposits, and slowly create the kind of damage that leads to leaks and unplanned shutdowns. If your system handles seawater, brine, or frequent washdown, your alloy choice directly affects outage risk and maintenance workload. A stainless steel ball valve in standard [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":14667,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[306],"tags":[],"class_list":["post-14666","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technical-science"],"_links":{"self":[{"href":"https:\/\/www.xintaivalves.com\/fa\/wp-json\/wp\/v2\/posts\/14666","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xintaivalves.com\/fa\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xintaivalves.com\/fa\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xintaivalves.com\/fa\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xintaivalves.com\/fa\/wp-json\/wp\/v2\/comments?post=14666"}],"version-history":[{"count":2,"href":"https:\/\/www.xintaivalves.com\/fa\/wp-json\/wp\/v2\/posts\/14666\/revisions"}],"predecessor-version":[{"id":14724,"href":"https:\/\/www.xintaivalves.com\/fa\/wp-json\/wp\/v2\/posts\/14666\/revisions\/14724"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.xintaivalves.com\/fa\/wp-json\/wp\/v2\/media\/14667"}],"wp:attachment":[{"href":"https:\/\/www.xintaivalves.com\/fa\/wp-json\/wp\/v2\/media?parent=14666"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xintaivalves.com\/fa\/wp-json\/wp\/v2\/categories?post=14666"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xintaivalves.com\/fa\/wp-json\/wp\/v2\/tags?post=14666"}],"curies":[{"name":"\u0648\u0631\u062f\u067e\u0631\u0633","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}