{"id":15745,"date":"2026-06-08T09:43:14","date_gmt":"2026-06-08T01:43:14","guid":{"rendered":"https:\/\/www.xintaivalves.com\/?p=15745"},"modified":"2026-06-25T12:31:48","modified_gmt":"2026-06-25T04:31:48","slug":"what-butterfly-valve-cv-value-flow-coefficient","status":"publish","type":"post","link":"https:\/\/www.xintaivalves.com\/ar\/blog\/butterfly-valve\/what-butterfly-valve-cv-value-flow-coefficient\/","title":{"rendered":"\u0645\u0627 \u0647\u0648 \u0645\u0639\u0627\u0645\u0644 CV \u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629 \u0648\u0644\u0645\u0627\u0630\u0627 \u0647\u0648 \u0645\u0647\u0645\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-butterfly-valve-cv-value-flow-coefficient\/#How_Do_You_Use_the_Butterfly_Valve_CV_Factor_Formula\" >\u0643\u064a\u0641 \u062a\u0633\u062a\u062e\u062f\u0645 \u0635\u064a\u063a\u0629 \u0645\u0639\u0627\u0645\u0644 CV \u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\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-butterfly-valve-cv-value-flow-coefficient\/#Key_Reasons_Why_CV_Calculation_Matters\" >\u0623\u0633\u0628\u0627\u0628 \u0631\u0626\u064a\u0633\u064a\u0629 \u0644\u0623\u0647\u0645\u064a\u0629 \u062d\u0633\u0627\u0628 CV<\/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\/ar\/blog\/butterfly-valve\/what-butterfly-valve-cv-value-flow-coefficient\/#What_is_the_Relationship_Between_Butterfly_Valve_Cv_vs_percent_open\" >\u0645\u0627 \u0647\u064a \u0627\u0644\u0639\u0644\u0627\u0642\u0629 \u0628\u064a\u0646 \u0645\u0639\u0627\u0645\u0644 CV \u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629 \u0645\u0642\u0627\u0628\u0644 \u0646\u0633\u0628\u0629 \u0627\u0644\u0641\u062a\u062d\u061f<\/a><\/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-butterfly-valve-cv-value-flow-coefficient\/#Factors_That_Affect_the_CV_Value\" >\u0627\u0644\u0639\u0648\u0627\u0645\u0644 \u0627\u0644\u062a\u064a \u062a\u0624\u062b\u0631 \u0639\u0644\u0649 \u0642\u064a\u0645\u0629 CV<\/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-butterfly-valve-cv-value-flow-coefficient\/#Why_CV_Matters_for_B2B_Procurement\" >\u0644\u0645\u0627\u0630\u0627 CV \u0645\u0647\u0645 \u0644\u0644\u0645\u0634\u062a\u0631\u064a\u0627\u062a \u0628\u064a\u0646 \u0627\u0644\u0634\u0631\u0643\u0627\u062a (B2B)<\/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-butterfly-valve-cv-value-flow-coefficient\/#Conclusion\" >\u062e\u0627\u062a\u0645\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-butterfly-valve-cv-value-flow-coefficient\/#Frequently_Asked_Questions_FAQs\" >\u0623\u0633\u0626\u0644\u0629 \u0645\u062a\u0643\u0631\u0631\u0629 (FAQs)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.xintaivalves.com\/ar\/blog\/butterfly-valve\/what-butterfly-valve-cv-value-flow-coefficient\/#1_What_is_a_good_Cv_value_for_a_butterfly_valve\" >1. \u0645\u0627 \u0647\u064a \u0642\u064a\u0645\u0629 CV \u0627\u0644\u062c\u064a\u062f\u0629 \u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629\u061f<\/a><\/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\/ar\/blog\/butterfly-valve\/what-butterfly-valve-cv-value-flow-coefficient\/#2_How_do_I_find_the_Cv_factor_table_for_my_valve_size\" >2. \u0643\u064a\u0641 \u0623\u062c\u062f \u062c\u062f\u0648\u0644 \u0645\u0639\u0627\u0645\u0644 CV \u0644\u062d\u062c\u0645 \u0635\u0645\u0627\u0645 \u0627\u0644\u062e\u0627\u0635 \u0628\u064a\u061f<\/a><\/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-butterfly-valve-cv-value-flow-coefficient\/#3_Does_CV_change_with_the_valve_material\" >3. \u0647\u0644 \u064a\u062a\u063a\u064a\u0631 CV \u0645\u0639 \u0645\u0627\u062f\u0629 \u0627\u0644\u0635\u0645\u0627\u0645\u061f<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.xintaivalves.com\/ar\/blog\/butterfly-valve\/what-butterfly-valve-cv-value-flow-coefficient\/#4_Can_I_estimate_flow_without_a_calculator\" >4. \u0647\u0644 \u064a\u0645\u0643\u0646\u0646\u064a \u062a\u0642\u062f\u064a\u0631 \u0627\u0644\u062a\u062f\u0641\u0642 \u0628\u062f\u0648\u0646 \u0622\u0644\u0629 \u062d\u0627\u0633\u0628\u0629\u061f<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\">\u0627\u0644 <strong>\u0645\u0639\u0627\u0645\u0644 CV \u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629 <\/strong>\u0647\u0648 \u0645\u0642\u064a\u0627\u0633 \u0645\u0648\u062d\u062f \u0644\u0642\u062f\u0631\u062a\u0647 \u0639\u0644\u0649 \u0627\u0644\u062a\u062f\u0641\u0642. \u064a\u062e\u0628\u0631\u0643 \u0628\u0643\u0645\u064a\u0629 \u0627\u0644\u0633\u0627\u0626\u0644 \u0627\u0644\u062a\u064a \u064a\u0645\u0631\u0631\u0647\u0627 \u0627\u0644\u0635\u0645\u0627\u0645 \u0639\u0646\u062f \u0627\u0646\u062e\u0641\u0627\u0636 \u0636\u063a\u0637 \u0645\u0639\u064a\u0646. \u0642\u064a\u0645\u0629 CV \u0623\u0648 <a href=\"https:\/\/www.xintaivalves.com\/ar\/blog\/what-is-valve-flow-coefficient\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.xintaivalves.com\/blog\/what-is-valve-flow-coefficient\/\" rel=\"noreferrer noopener\">\u0645\u0639\u0627\u0645\u0644 \u0627\u0644\u062a\u062f\u0641\u0642<\/a> \u064a\u062a\u0645 \u062d\u0633\u0627\u0628\u0647 \u0628\u0627\u0644\u063a\u0627\u0644\u0648\u0646 \u0627\u0644\u0623\u0645\u0631\u064a\u0643\u064a \u0641\u064a \u0627\u0644\u062f\u0642\u064a\u0642\u0629 \u0648\u064a\u0645\u0631 \u0639\u0628\u0631 \u0627\u0644\u0635\u0645\u0627\u0645 \u0639\u0646\u062f \u0627\u0646\u062e\u0641\u0627\u0636 \u0636\u063a\u0637 \u0642\u062f\u0631\u0647 1 \u0631\u0637\u0644 \u0644\u0643\u0644 \u0628\u0648\u0635\u0629 \u0645\u0631\u0628\u0639\u0629.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u064a\u0633\u062a\u062e\u062f\u0645 \u0627\u0644\u0645\u0647\u0646\u062f\u0633\u0648\u0646 <strong>\u062d\u0633\u0627\u0628 \u0645\u0639\u062f\u0644 \u062a\u062f\u0641\u0642 \u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629 <\/strong>\u0644\u0627\u062e\u062a\u064a\u0627\u0631 \u062d\u062c\u0645 \u0627\u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u0635\u062d\u064a\u062d. \u062a\u0642\u0627\u0631\u0646 \u0641\u0631\u0642 \u0627\u0644\u0645\u0634\u062a\u0631\u064a\u0627\u062a \u0647\u0630\u0647 \u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0639\u0628\u0631 \u0627\u0644\u0645\u0648\u0631\u062f\u064a\u0646 \u0642\u0628\u0644 \u062a\u0642\u062f\u064a\u0645 \u0627\u0644\u0637\u0644\u0628\u0627\u062a.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u064a\u0645\u0643\u0646 \u0623\u0646 \u064a\u0624\u062f\u064a \u0627\u062e\u062a\u064a\u0627\u0631 \u0645\u0639\u0627\u0645\u0644 CV \u062e\u0627\u0637\u0626 \u0625\u0644\u0649 \u0636\u0639\u0641 <a href=\"https:\/\/www.xintaivalves.com\/ar\/blog\/flow-control-valve-comprehensive-guide\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.xintaivalves.com\/blog\/flow-control-valve-comprehensive-guide\/\" rel=\"noreferrer noopener\">\u0627\u0644\u062a\u062d\u0643\u0645 \u0641\u064a \u0627\u0644\u062a\u062f\u0641\u0642<\/a> \u0623\u0648 \u0625\u0647\u062f\u0627\u0631 \u0637\u0627\u0642\u0629 \u0627\u0644\u0645\u0636\u062e\u0629. \u064a\u0634\u0631\u062d \u0647\u0630\u0627 \u0627\u0644\u062f\u0644\u064a\u0644 \u0627\u0644\u0635\u064a\u063a\u0629\u060c, <strong>\u0645\u062e\u0637\u0637 \u0645\u0639\u0627\u0645\u0644 CV \u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629<\/strong>, \u0648\u0627\u0644\u062c\u062f\u0627\u0648\u0644 \u0627\u0644\u062a\u064a \u062a\u062d\u062a\u0627\u062c\u0647\u0627 \u0644\u0644\u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u062f\u0642\u064a\u0642.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_Do_You_Use_the_Butterfly_Valve_CV_Factor_Formula\"><\/span><strong>\u0643\u064a\u0641 \u062a\u0633\u062a\u062e\u062f\u0645 \u0635\u064a\u063a\u0629 \u0645\u0639\u0627\u0645\u0644 CV \u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629\u061f<\/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 fetchpriority=\"high\" decoding=\"async\" width=\"922\" height=\"914\" src=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724762-1.webp\" alt=\"\u0635\u064a\u063a\u0629 \u0639\u0627\u0645\u0644 Cv \u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629\" class=\"wp-image-15748\" style=\"aspect-ratio:1.0087628769256751;width:461px;height:auto\" srcset=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724762-1.webp 922w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724762-1-300x297.webp 300w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724762-1-150x150.webp 150w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724762-1-768x761.webp 768w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724762-1-12x12.webp 12w\" sizes=\"(max-width: 922px) 100vw, 922px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">\u062d\u0633\u0627\u0628 <strong>\u0645\u0639\u0627\u0645\u0644 CV \u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629<\/strong> \u0623\u0645\u0631 \u0628\u0627\u0644\u063a \u0627\u0644\u0623\u0647\u0645\u064a\u0629. \u064a\u062d\u062f\u062f \u0628\u0634\u0643\u0644 \u0645\u0628\u0627\u0634\u0631 \u0645\u0627 \u0625\u0630\u0627 \u0643\u0627\u0646 \u0627\u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u062e\u0627\u0635 \u0628\u0643 \u0633\u064a\u0639\u0645\u0644 \u0628\u0634\u0643\u0644 \u0635\u062d\u064a\u062d \u0641\u064a \u0645\u0635\u0646\u0639\u0643 \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a \u0623\u0648 \u0646\u0638\u0627\u0645\u0643 \u0627\u0644\u0635\u0646\u0627\u0639\u064a.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u064a\u0633\u0627\u0639\u062f \u0647\u0630\u0627 \u0627\u0644\u0645\u0647\u0646\u062f\u0633\u064a\u0646 \u0639\u0644\u0649 \u062a\u062d\u062f\u064a\u062f \u062d\u062c\u0645 \u0627\u0644\u0645\u0636\u062e\u0627\u062a \u0648\u0627\u062e\u062a\u064a\u0627\u0631 \u0623\u0642\u0637\u0627\u0631 \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628 \u0628\u0634\u0643\u0644 \u0635\u062d\u064a\u062d. \u064a\u0642\u062f\u0645 \u0627\u0644\u0639\u062f\u064a\u062f \u0645\u0646 \u0627\u0644\u0645\u0648\u0631\u062f\u064a\u0646 \u0639\u0628\u0631 \u0627\u0644\u0625\u0646\u062a\u0631\u0646\u062a \u0645\u062c\u0627\u0646\u064b\u0627 <strong>\u062d\u0627\u0633\u0628\u0627\u062a \u0627\u0646\u062e\u0641\u0627\u0636 \u0627\u0644\u0636\u063a\u0637 \u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629<\/strong> \u0623\u0648 \u0623\u062f\u0648\u0627\u062a \u062c\u062f\u0627\u0648\u0644 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0644\u0647\u0630\u0627 \u0627\u0644\u063a\u0631\u0636.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0625\u0644\u064a\u0643 \u0627\u0644\u0635\u064a\u063a\u0629 \u0627\u0644\u0642\u064a\u0627\u0633\u064a\u0629 \u0627\u0644\u0645\u0633\u062a\u062e\u062f\u0645\u0629 \u0644\u062d\u0633\u0627\u0628 \u0645\u0639\u0627\u0645\u0644 CV \u0644\u062a\u062f\u0641\u0642 \u0627\u0644\u0633\u0627\u0626\u0644:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0627\u0644\u0623\u0633\u0627\u0633\u064a <strong>\u0635\u064a\u063a\u0629 \u0645\u0639\u0627\u0645\u0644 CV \u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629<\/strong> \u0647\u064a <em>Cv = Q \u0645\u0636\u0631\u0648\u0628 \u0641\u064a \u0627\u0644\u062c\u0630\u0631 \u0627\u0644\u062a\u0631\u0628\u064a\u0639\u064a \u0644\u0640 (SG \/ dP<\/em>).&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Q \u064a\u0645\u062b\u0644 \u0645\u0639\u062f\u0644 \u0627\u0644\u062a\u062f\u0641\u0642 \u0628\u0627\u0644\u063a\u0627\u0644\u0648\u0646 \u0641\u064a \u0627\u0644\u062f\u0642\u064a\u0642\u0629. SG \u0647\u064a \u0627\u0644\u062c\u0627\u0630\u0628\u064a\u0629 \u0627\u0644\u0646\u0648\u0639\u064a\u0629 \u0644\u0644\u0633\u0627\u0626\u0644\u060c \u062d\u064a\u062b \u062a\u0633\u0627\u0648\u064a \u0627\u0644\u0645\u0627\u0621 1.<\/li>\n\n\n\n<li>dP \u0647\u0648 \u0627\u0646\u062e\u0641\u0627\u0636 \u0627\u0644\u0636\u063a\u0637 \u0639\u0628\u0631 \u0627\u0644\u0635\u0645\u0627\u0645 \u0628\u0648\u062d\u062f\u0629 psi. \u0639\u0644\u0649 \u0633\u0628\u064a\u0644 \u0627\u0644\u0645\u062b\u0627\u0644\u060c \u0625\u0630\u0627 \u062a\u062f\u0641\u0642 \u0627\u0644\u0645\u0627\u0621 \u0628\u0645\u0639\u062f\u0644 100 GPM \u0645\u0639 \u0627\u0646\u062e\u0641\u0627\u0636 \u0642\u062f\u0631\u0647 4 psi\u060c \u0641\u0625\u0646 Cv \u064a\u0633\u0627\u0648\u064a 50.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u063a\u0627\u0644\u0628\u064b\u0627 \u0645\u0627 \u062a\u0633\u062a\u062e\u062f\u0645 \u0627\u0644\u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u0645\u062a\u0631\u064a\u0629 Kv \u0628\u062f\u0644\u0627\u064b \u0645\u0646 Cv. Kv \u064a\u0633\u0627\u0648\u064a \u062a\u0642\u0631\u064a\u0628\u064b\u0627 0.865 \u0645\u0636\u0631\u0648\u0628\u064b\u0627 \u0641\u064a Cv \u0644\u0646\u0641\u0633 \u0627\u0644\u0635\u0645\u0627\u0645.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Key_Reasons_Why_CV_Calculation_Matters\"><\/span><strong>\u0623\u0633\u0628\u0627\u0628 \u0631\u0626\u064a\u0633\u064a\u0629 \u0644\u0623\u0647\u0645\u064a\u0629 \u062d\u0633\u0627\u0628 CV<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u062a\u062d\u062f\u064a\u062f \u062d\u062c\u0645 \u0627\u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u0645\u0646\u0627\u0633\u0628 <\/strong>\u2013 \u0647\u0630\u0627 \u0647\u0648 \u0627\u0644\u0639\u0627\u0645\u0644 \u0627\u0644\u0623\u0643\u062b\u0631 \u0623\u0647\u0645\u064a\u0629 \u0641\u064a \u062a\u062d\u062f\u064a\u062f \u0633\u0639\u0629 \u0627\u0644\u062a\u062f\u0641\u0642. CV \u0647\u0648 \u0627\u0644\u0639\u0645\u0648\u062f \u0627\u0644\u0641\u0642\u0631\u064a \u0644\u0640 <a href=\"https:\/\/www.xintaivalves.com\/ar\/valve-cv-calculator-flow-coefficient-for-valve-sizing\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.xintaivalves.com\/valve-cv-calculator-flow-coefficient-for-valve-sizing\/\" rel=\"noreferrer noopener\">\u062a\u062d\u062f\u064a\u062f \u062d\u062c\u0645 \u0627\u0644\u0635\u0645\u0627\u0645<\/a> \u0627\u0644\u0639\u0645\u0644\u064a\u0627\u062a \u0627\u0644\u062d\u0633\u0627\u0628\u064a\u0629. \u064a\u0636\u0645\u0646 \u062a\u062d\u062f\u064a\u062f \u062d\u062c\u0645 \u0627\u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u0645\u0646\u0627\u0633\u0628 \u062a\u062f\u0641\u0642\u064b\u0627 \u0643\u0627\u0641\u064a\u064b\u0627 \u062f\u0648\u0646 \u0632\u064a\u0627\u062f\u0629 \u0623\u0648 \u062a\u0642\u0644\u064a\u0644 \u062d\u062c\u0645 \u0627\u0644\u0635\u0645\u0627\u0645.\u00a0<\/li>\n\n\n\n<li><strong>\u064a\u0645\u0646\u0639 \u0645\u0634\u0627\u0643\u0644 \u0627\u0644\u0623\u062f\u0627\u0621 <\/strong>\u2013 \u0623\u062f\u0646\u0627\u0647 \u062c\u062f\u0648\u0644 \u064a\u0644\u062e\u0635 \u0627\u0644\u0645\u0634\u0627\u0643\u0644 \u0648\u0623\u0633\u0628\u0627\u0628\u0647\u0627:<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>\u0645\u0634\u0643\u0644\u0629<\/strong><\/td><td><strong>\u0625\u0630\u0627 \u0643\u0627\u0646 CV \u0645\u0646\u062e\u0641\u0636\u064b\u0627 \u062c\u062f\u064b\u0627<\/strong><\/td><td><strong>\u0625\u0630\u0627 \u0643\u0627\u0646 CV \u0645\u0631\u062a\u0641\u0639\u064b\u0627 \u062c\u062f\u064b\u0627<\/strong><\/td><\/tr><tr><td><strong>\u0645\u0639\u062f\u0644 \u0627\u0644\u0645\u062f \u0648 \u0627\u0644\u062c\u0632\u0631<\/strong><\/td><td>\u0627\u0646\u062e\u0641\u0627\u0636 \u0645\u0639\u062f\u0644\u0627\u062a \u0627\u0644\u062a\u062f\u0641\u0642<\/td><td>\u2014<\/td><\/tr><tr><td><strong>\u0647\u0628\u0648\u0637 \u0627\u0644\u0636\u063a\u0637<\/strong><\/td><td>\u0627\u0646\u062e\u0641\u0627\u0636 \u0645\u0641\u0631\u0637 \u0641\u064a \u0627\u0644\u0636\u063a\u0637<\/td><td>\u2014<\/td><\/tr><tr><td><strong>\u0627\u0644\u0637\u0627\u0642\u0629<\/strong><\/td><td>\u0632\u064a\u0627\u062f\u0629 \u0627\u0633\u062a\u0647\u0644\u0627\u0643 \u0637\u0627\u0642\u0629 \u0627\u0644\u0645\u0636\u062e\u0629<\/td><td>\u0632\u064a\u0627\u062f\u0629 \u0627\u0633\u062a\u0647\u0644\u0627\u0643 \u0627\u0644\u0637\u0627\u0642\u0629.<\/td><\/tr><tr><td><strong>\u064a\u062a\u062d\u0643\u0645<\/strong><\/td><td>\u2014<\/td><td>\u0636\u0639\u0641 \u0627\u0644\u062a\u062d\u0643\u0645 \u0641\u064a \u0627\u0644\u062a\u062f\u0641\u0642 \u0648\u0639\u062f\u0645 \u0627\u0644\u0627\u0633\u062a\u0642\u0631\u0627\u0631.<\/td><\/tr><tr><td><strong>\u0627\u0644\u0646\u0638\u0627\u0645<\/strong><\/td><td>\u2014<\/td><td>\u0638\u0631\u0648\u0641 \u062a\u062f\u0641\u0642 \u063a\u064a\u0631 \u0645\u0633\u062a\u0642\u0631\u0629\u060c \u062a\u0644\u0641 \u0645\u062d\u062a\u0645\u0644 \u0644\u0644\u0635\u0645\u0627\u0645.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>\u062a\u062d\u0633\u064a\u0646 \u0647\u064a\u062f\u0631\u0648\u0644\u064a\u0643\u0627 \u0627\u0644\u0646\u0638\u0627\u0645 \u2013 <\/strong>\u064a\u0633\u062a\u062e\u062f\u0645 \u0627\u0644\u0645\u0647\u0646\u062f\u0633\u0648\u0646 \u0647\u0630\u0627 \u0644\u062d\u0633\u0627\u0628 \u0627\u0646\u062e\u0641\u0627\u0636 \u0627\u0644\u0636\u063a\u0637 \u0648\u062a\u0642\u062f\u064a\u0631 \u0645\u0639\u062f\u0644 \u0627\u0644\u062a\u062f\u0641\u0642 \u0641\u064a \u062a\u0635\u0645\u064a\u0645 \u062e\u0637\u0648\u0637 \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628. \u064a\u0633\u0627\u0639\u062f \u0630\u0644\u0643 \u0641\u064a \u062a\u062d\u0633\u064a\u0646 \u0623\u062f\u0627\u0621 \u0646\u0638\u0627\u0645 \u0627\u0644\u0633\u0648\u0627\u0626\u0644.<\/li>\n\n\n\n<li><strong>\u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0635\u0645\u0627\u0645\u0627\u062a \u0628\u062f\u0642\u0629 \u0648\u0627\u0644\u0645\u0642\u0627\u0631\u0646\u0629 \u2013 <\/strong>\u064a\u0633\u0627\u0639\u062f \u0627\u0644\u0642\u064a\u0627\u0633 \u0627\u0644\u0645\u0648\u062d\u062f \u0641\u064a \u0645\u0642\u0627\u0631\u0646\u0629 \u0633\u0639\u0629 \u0627\u0644\u062a\u062f\u0641\u0642 \u0644\u0644\u0635\u0645\u0627\u0645\u0627\u062a \u0627\u0644\u0645\u062e\u062a\u0644\u0641\u0629. \u062a\u0648\u0641\u0631 \u0623\u0646\u0648\u0627\u0639 \u0627\u0644\u0635\u0645\u0627\u0645\u0627\u062a \u0627\u0644\u0645\u062e\u062a\u0644\u0641\u0629 \u0625\u0645\u0643\u0627\u0646\u064a\u0627\u062a Cv \u0645\u062e\u062a\u0644\u0641\u0629. \u0639\u0644\u0649 \u0633\u0628\u064a\u0644 \u0627\u0644\u0645\u062b\u0627\u0644\u060c \u0627\u0644\u0635\u0645\u0627\u0645\u0627\u062a \u0627\u0644\u062a\u064a \u062a\u062a\u0631\u0627\u0648\u062d \u0633\u0639\u062a\u0647\u0627 \u0645\u0646 50 \u0625\u0644\u0649 200+ Cv \u0641\u0639\u0627\u0644\u0629 \u0645\u0646 \u062d\u064a\u062b \u0627\u0644\u062a\u0643\u0644\u0641\u0629 \u0644\u0633\u0639\u0627\u062a \u0627\u0644\u062a\u062f\u0641\u0642 \u0627\u0644\u0643\u0628\u064a\u0631\u0629.<\/li>\n\n\n\n<li><strong>\u0643\u0641\u0627\u0621\u0629 \u0627\u0644\u0637\u0627\u0642\u0629 \u0648\u062a\u0648\u0641\u064a\u0631 \u0627\u0644\u062a\u0643\u0627\u0644\u064a\u0641 \u2013 <\/strong>\u064a\u0642\u0644\u0644 CV \u0627\u0644\u0645\u0637\u0627\u0628\u0642 \u0645\u0646 \u0641\u0642\u062f\u0627\u0646 \u0627\u0644\u0636\u063a\u0637\u060c \u0648\u064a\u0642\u0644\u0644 \u0645\u0646 \u062a\u0643\u0627\u0644\u064a\u0641 \u0627\u0644\u062a\u0634\u063a\u064a\u0644\u060c \u0648\u064a\u062a\u062c\u0646\u0628 \u0625\u0647\u062f\u0627\u0631 \u0627\u0644\u0637\u0627\u0642\u0629 \u0628\u0633\u0628\u0628 \u0627\u0644\u062a\u062d\u062c\u064a\u0645 \u063a\u064a\u0631 \u0627\u0644\u0635\u062d\u064a\u062d.\u00a0<\/li>\n\n\n\n<li><strong>\u0627\u0633\u062a\u0642\u0631\u0627\u0631 \u0627\u0644\u0639\u0645\u0644\u064a\u0629 \u2013 <\/strong>\u064a\u062d\u0633\u0646 CV \u0627\u0644\u0645\u0646\u0627\u0633\u0628 \u0627\u0633\u062a\u062c\u0627\u0628\u0629 \u0627\u0644\u062a\u062d\u0643\u0645\u060c \u0648\u064a\u0645\u0646\u0639 \u0627\u0644\u062a\u0630\u0628\u0630\u0628\u0627\u062a\u060c \u0648\u0647\u0648 \u0636\u0631\u0648\u0631\u064a \u0644\u0644\u062a\u062d\u0643\u0645 \u0627\u0644\u0645\u0633\u062a\u0642\u0631 \u0641\u064a \u0627\u0644\u0646\u0638\u0627\u0645.\u00a0<\/li>\n\n\n\n<li><strong>\u0627\u0633\u062a\u0643\u0634\u0627\u0641 \u0627\u0644\u0623\u062e\u0637\u0627\u0621 \u0648\u0625\u0635\u0644\u0627\u062d\u0647\u0627 \u0648\u0627\u0644\u0635\u064a\u0627\u0646\u0629 \u2013 <\/strong>\u064a\u0633\u0627\u0639\u062f \u0647\u0630\u0627 \u0641\u064a \u062a\u062d\u062f\u064a\u062f \u062a\u062f\u0647\u0648\u0631 \u0627\u0644\u0635\u0645\u0627\u0645 \u0641\u064a \u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u0645\u0639\u0627\u0644\u062c\u0629 \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0626\u064a\u0629. \u063a\u0627\u0644\u0628\u064b\u0627 \u0645\u0627 \u062a\u0634\u064a\u0631 \u0627\u0644\u062a\u063a\u064a\u064a\u0631\u0627\u062a \u0641\u064a Cv \u0627\u0644\u0641\u0639\u0644\u064a \u0625\u0644\u0649 \u0627\u0644\u062a\u0622\u0643\u0644 \u0623\u0648 \u0627\u0644\u0627\u0646\u0633\u062f\u0627\u062f \u0623\u0648 \u0645\u0634\u0627\u0643\u0644 \u0627\u0644\u062a\u0631\u0643\u064a\u0628.\u00a0<\/li>\n\n\n\n<li><strong>\u0645\u0648\u062b\u0648\u0642\u064a\u0629 \u0627\u0644\u0646\u0638\u0627\u0645 \u2013 <\/strong>\u064a\u0624\u062f\u064a \u0627\u062e\u062a\u064a\u0627\u0631 CV \u0627\u0644\u0635\u062d\u064a\u062d \u0625\u0644\u0649 \u0627\u0633\u062a\u0642\u0631\u0627\u0631 \u0647\u064a\u062f\u0631\u0648\u0644\u064a\u0643\u0627 \u062e\u0637\u0648\u0637 \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628. \u064a\u0645\u0646\u0639 \u0627\u0644\u062a\u062f\u0647\u0648\u0631 \u0627\u0644\u0645\u0628\u0643\u0631 \u0644\u0644\u0645\u0642\u0639\u062f \u0648\u064a\u0644\u063a\u064a \u0627\u0646\u062e\u0641\u0627\u0636\u0627\u062a \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0645\u0648\u0636\u0639\u064a\u0629.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_the_Relationship_Between_Butterfly_Valve_Cv_vs_percent_open\"><\/span><strong>\u0645\u0627 \u0647\u064a \u0627\u0644\u0639\u0644\u0627\u0642\u0629 \u0628\u064a\u0646 \u0645\u0639\u0627\u0645\u0644 CV \u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629 \u0645\u0642\u0627\u0628\u0644 \u0646\u0633\u0628\u0629 \u0627\u0644\u0641\u062a\u062d\u061f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0627\u0644\u0639\u0644\u0627\u0642\u0629 \u0628\u064a\u0646 <strong>butterfly valve Cv and percent open<\/strong> is not linear. At low opening angles, below 20 degrees, Cv stays very low.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Between 30 and 70 degrees, Cv increases sharply with each small adjustment. Past 70 degrees, an additional opening adds little extra flow. Between 30 and 70 degrees, the valve exhibits an equal-percentage inherent flow characteristic.\u00a0 This means that Cv increases exponentially with minor angular adjustments.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This curve matters for control valve applications. Operators need fine control in the steep middle range to avoid sudden flow surges.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Factors_That_Affect_the_CV_Value\"><\/span><strong>\u0627\u0644\u0639\u0648\u0627\u0645\u0644 \u0627\u0644\u062a\u064a \u062a\u0624\u062b\u0631 \u0639\u0644\u0649 \u0642\u064a\u0645\u0629 CV<\/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\u724763-1024x512.webp\" alt=\"\u0627\u0644\u0639\u0648\u0627\u0645\u0644 \u0627\u0644\u062a\u064a \u062a\u0624\u062b\u0631 \u0639\u0644\u0649 \u0642\u064a\u0645\u0629 CV\" class=\"wp-image-15749\" style=\"width:652px;height:auto\" srcset=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724763-1024x512.webp 1024w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724763-300x150.webp 300w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724763-768x384.webp 768w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724763-18x9.webp 18w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724763.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Several factors influence the final CV rating of a butterfly valve. Valve size has the largest impact, since larger bores pass more fluid.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Disc design also matters. Eccentric discs often reach a higher Cv than concentric designs at the same nominal size.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Seat material and liner thickness can reduce the effective flow area slightly. Body style, such as wafer, lug, or flanged, has a smaller but measurable effect on Cv.<\/p>\n\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\/product\/butterfly-valve\/\" target=\"_blank\">\n  <img decoding=\"async\" class=\"hero-image\" src=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2022\/02\/%E5%AF%B9%E7%84%8A%E5%BC%8F%E4%B8%89%E5%81%8F%E5%BF%83%E5%A4%9A%E5%B1%82%E6%AC%A1%E7%A1%AC%E5%AF%86%E5%B0%81%E8%9D%B6%E9%98%80.jpg\" alt=\"\u0635\u0645\u0627\u0645 \u0641\u0631\u0627\u0634\u0629\">\n  <div class=\"hero-content\">\n    <div class=\"hero-title\">\u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629 \ud83d\udee0<\/div>\n    <div class=\"hero-description\">\u0635\u0645\u0627\u0645 \u0641\u0631\u0627\u0634\u0629 \u0645\u0635\u0645\u0645 \u0628\u062f\u0642\u0629 \u0639\u0627\u0644\u064a\u0629 \u0644\u0644\u062a\u062d\u0643\u0645 \u0627\u0644\u0641\u0639\u0627\u0644 \u0641\u064a \u0627\u0644\u062a\u062f\u0641\u0642 \u0641\u064a \u0645\u062c\u0645\u0648\u0639\u0629 \u0645\u062a\u0646\u0648\u0639\u0629 \u0645\u0646 \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0627\u0644\u0635\u0646\u0627\u0639\u064a\u0629. \u0623\u062f\u0627\u0621 \u0645\u0648\u062b\u0648\u0642 \u0628\u0647 \u0644\u0623\u0646\u0638\u0645\u0629 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0639\u0627\u0644\u064a \u0648\u0627\u0644\u0645\u0646\u062e\u0641\u0636.<\/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\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_CV_Matters_for_B2B_Procurement\"><\/span><strong>\u0644\u0645\u0627\u0630\u0627 CV \u0645\u0647\u0645 \u0644\u0644\u0645\u0634\u062a\u0631\u064a\u0627\u062a \u0628\u064a\u0646 \u0627\u0644\u0634\u0631\u0643\u0627\u062a (B2B)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Comparing the <strong>\u0645\u0639\u0627\u0645\u0644 CV \u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629<\/strong> across suppliers helps buyers avoid mismatched specifications. A valve with insufficient Cv creates an excess pressure drop and wastes pump energy.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">An oversized valve may offer poor control at low flow rates. Requesting a <strong>butterfly valve Cv factor chart<\/strong> and test data during the quotation stage protects your project timeline and budget.<\/p>\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<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\u724764-1024x512.webp\" alt=\"\u0645\u0637\u0627\u0628\u0642\u0629 \u0639\u0627\u0645\u0644 Cv \u062a\u0636\u0645\u0646 \u0643\u0641\u0627\u0621\u0629 \u0627\u0644\u0637\u0627\u0642\u0629 \u0648\u0627\u0644\u0627\u0633\u062a\u0642\u0631\u0627\u0631 \u0627\u0644\u0647\u064a\u062f\u0631\u0648\u0644\u064a\u0643\u064a \u0627\u0644\u0623\u0645\u062b\u0644 \u0644\u062e\u0637 \u0627\u0644\u0623\u0646\u0627\u0628\u064a\u0628.\" class=\"wp-image-15750\" style=\"width:636px;height:auto\" srcset=\"https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724764-1024x512.webp 1024w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724764-300x150.webp 300w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724764-768x384.webp 768w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724764-18x9.webp 18w, https:\/\/www.xintaivalves.com\/wp-content\/uploads\/2026\/06\/\u56fe\u724764.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u0641\u0647\u0645 <strong>\u062d\u0633\u0627\u0628 \u0645\u0639\u062f\u0644 \u062a\u062f\u0641\u0642 \u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629<\/strong> helps you select valves that match your system\u2019s flow and pressure needs. Xintai Valve has an online <strong>\u062d\u0633\u0627\u0628 \u0645\u0639\u062f\u0644 \u062a\u062f\u0641\u0642 \u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629<\/strong> tool to help calculate valve sizing.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Xintai Valves also manufactures butterfly valves tested to ISO 9001, <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\">API 609<\/a>, and EN 593 standards. Our factory holds CE and API certifications and exports to more than 60 countries.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.xintaivalves.com\/ar\/contact\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u0627\u062a\u0635\u0644 \u0628\u0627\u0644\u0641\u0631\u064a\u0642 \u0627\u0644\u0641\u0646\u064a \u0644\u0634\u0631\u0643\u0629 Xintai Valves<\/a> \u0644\u0640 <strong>\u0645\u0644\u0641 PDF \u0644\u0639\u0627\u0645\u0644 Cv \u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629<\/strong> \u0645\u0637\u0627\u0628\u0642 \u0644\u0645\u062a\u0637\u0644\u0628\u0627\u062a \u0645\u0634\u0631\u0648\u0639\u0643.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Frequently_Asked_Questions_FAQs\"><\/span><strong>\u0623\u0633\u0626\u0644\u0629 \u0645\u062a\u0643\u0631\u0631\u0629 (FAQs)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_What_is_a_good_Cv_value_for_a_butterfly_valve\"><\/span><strong>1. \u0645\u0627 \u0647\u064a \u0642\u064a\u0645\u0629 CV \u0627\u0644\u062c\u064a\u062f\u0629 \u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629\u061f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u064a\u0639\u062a\u0645\u062f \u0639\u0627\u0645\u0644 Cv \u0627\u0644\u0645\u062b\u0627\u0644\u064a \u0639\u0644\u0649 \u0645\u0639\u062f\u0644 \u062a\u062f\u0641\u0642 \u0646\u0638\u0627\u0645\u0643 \u0648\u0627\u0646\u062e\u0641\u0627\u0636 \u0627\u0644\u0636\u063a\u0637 \u0627\u0644\u0645\u0633\u0645\u0648\u062d \u0628\u0647. \u0627\u062d\u0633\u0628 \u0639\u0627\u0645\u0644 Cv \u0627\u0644\u0645\u0637\u0644\u0648\u0628 \u0645\u0646 \u0628\u064a\u0627\u0646\u0627\u062a \u0639\u0645\u0644\u064a\u062a\u0643\u060c \u062b\u0645 \u0637\u0627\u0628\u0642\u0647 \u0645\u0639 \u062d\u062c\u0645 \u0627\u0644\u0635\u0645\u0627\u0645 \u0645\u0646 \u062c\u062f\u0648\u0644 \u0627\u0644\u0634\u0631\u0643\u0629 \u0627\u0644\u0645\u0635\u0646\u0639\u0629.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_How_do_I_find_the_Cv_factor_table_for_my_valve_size\"><\/span><strong>2. \u0643\u064a\u0641 \u0623\u062c\u062f \u062c\u062f\u0648\u0644 \u0645\u0639\u0627\u0645\u0644 CV \u0644\u062d\u062c\u0645 \u0635\u0645\u0627\u0645 \u0627\u0644\u062e\u0627\u0635 \u0628\u064a\u061f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0627\u0637\u0644\u0628 <strong>\u062c\u062f\u0648\u0644 \u0639\u0627\u0645\u0644 Cv \u0644\u0635\u0645\u0627\u0645 \u0627\u0644\u0641\u0631\u0627\u0634\u0629<\/strong> \u0623\u0648 \u0645\u0644\u0641 PDF \u0645\u0628\u0627\u0634\u0631\u0629 \u0645\u0646 \u0627\u0644\u0634\u0631\u0643\u0629 \u0627\u0644\u0645\u0635\u0646\u0639\u0629. \u062a\u062a\u0636\u0645\u0646 Xintai Valves \u0648\u0631\u0642\u0629 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0647\u0630\u0647 \u0645\u0639 \u0643\u0644 \u0627\u0633\u062a\u0641\u0633\u0627\u0631 \u0639\u0646 \u0645\u0646\u062a\u062c.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Does_CV_change_with_the_valve_material\"><\/span><strong>3. \u0647\u0644 \u064a\u062a\u063a\u064a\u0631 CV \u0645\u0639 \u0645\u0627\u062f\u0629 \u0627\u0644\u0635\u0645\u0627\u0645\u061f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0644\u0627 \u064a\u0624\u062b\u0631 \u0643\u0644 \u0645\u0646 \u0645\u0627\u062f\u0629 \u0627\u0644\u062c\u0633\u0645 \u0648\u0627\u0644\u0642\u0631\u0635 \u0628\u0634\u0643\u0644 \u0645\u0628\u0627\u0634\u0631 \u0639\u0644\u0649 \u0639\u0627\u0645\u0644 Cv. \u0648\u0645\u0639 \u0630\u0644\u0643\u060c \u064a\u0645\u0643\u0646 \u0623\u0646 \u064a\u0642\u0644\u0644 \u0633\u0645\u0643 \u0627\u0644\u0628\u0637\u0627\u0646\u0629 \u0641\u064a \u0627\u0644\u0635\u0645\u0627\u0645\u0627\u062a \u0627\u0644\u0645\u0628\u0637\u0646\u0629 \u0628\u0640 PTFE \u0645\u0646 \u0645\u0633\u0627\u062d\u0629 \u0627\u0644\u062a\u062f\u0641\u0642 \u0642\u0644\u064a\u0644\u0627\u064b. \u0639\u0644\u0649 \u0633\u0628\u064a\u0644 \u0627\u0644\u0645\u062b\u0627\u0644\u060c \u062a\u0642\u0644\u0644 \u0635\u0645\u0627\u0645\u0627\u062a \u0627\u0644\u0641\u0631\u0627\u0634\u0629 \u0627\u0644\u0645\u062a\u0645\u0631\u0643\u0632\u0629 \u0630\u0627\u062a \u0627\u0644\u0628\u0637\u0627\u0646\u0627\u062a \u0627\u0644\u0633\u0645\u064a\u0643\u0629 \u0645\u0646 \u0627\u0644\u0645\u0637\u0627\u0637 \u0627\u0644\u0635\u0646\u0627\u0639\u064a \u0623\u0648 PTFE \u0627\u0644\u0642\u0637\u0631 \u0627\u0644\u062f\u0627\u062e\u0644\u064a \u0627\u0644\u0627\u0633\u0645\u064a \u0628\u0646\u0633\u0628\u0629 2-5%. \u0647\u0630\u0627 \u064a\u0642\u0644\u0644 \u0645\u0646 \u0639\u0627\u0645\u0644 Cv \u0627\u0644\u0641\u0639\u0644\u064a \u0645\u0642\u0627\u0631\u0646\u0629 \u0628\u0627\u0644\u0635\u0645\u0627\u0645 \u063a\u064a\u0631 \u0627\u0644\u0645\u0628\u0637\u0646.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Can_I_estimate_flow_without_a_calculator\"><\/span><strong>4.<\/strong> <strong>\u0647\u0644 \u064a\u0645\u0643\u0646\u0646\u064a \u062a\u0642\u062f\u064a\u0631 \u0627\u0644\u062a\u062f\u0641\u0642 \u0628\u062f\u0648\u0646 \u0622\u0644\u0629 \u062d\u0627\u0633\u0628\u0629\u061f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0646\u0639\u0645. \u0627\u0633\u062a\u062e\u062f\u0645 \u0627\u0644\u0635\u064a\u063a\u0629 \u0627\u0644\u0645\u0639\u0627\u062f \u062a\u0631\u062a\u064a\u0628\u0647\u0627 Q = Cv \u00d7 \u0627\u0644\u062c\u0630\u0631 \u0627\u0644\u062a\u0631\u0628\u064a\u0639\u064a \u0644\u0640 (dP \/ SG) \u0644\u062a\u0642\u062f\u064a\u0631 \u064a\u062f\u0648\u064a \u0633\u0631\u064a\u0639. \u0648\u0645\u0639 \u0630\u0644\u0643\u060c \u0643\u0646 \u062d\u0630\u0631\u064b\u0627 \u0639\u0646\u062f \u062a\u0642\u062f\u064a\u0645 \u062a\u0642\u062f\u064a\u0631. \u0642\u062f \u064a\u0624\u062b\u0631 \u0639\u062f\u0645 \u0627\u0644\u062f\u0642\u0629 \u0627\u0644\u0637\u0641\u064a\u0641 \u0628\u0634\u0643\u0644 \u0643\u0628\u064a\u0631 \u0639\u0644\u0649 \u0643\u0641\u0627\u0621\u0629 \u0645\u0634\u0631\u0648\u0639\u0643.<\/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>","protected":false},"excerpt":{"rendered":"<p>The butterfly valve CV factor is a standardized measure of its flow capacity. It tells you how much fluid a valve passes at a set pressure drop. The CV value or flow coefficient is calculated in US gallons per minute and passes through a valve at a 1 psi pressure drop.\u00a0 Engineers use the butterfly [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":15746,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[233],"tags":[],"class_list":["post-15745","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\/15745","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=15745"}],"version-history":[{"count":3,"href":"https:\/\/www.xintaivalves.com\/ar\/wp-json\/wp\/v2\/posts\/15745\/revisions"}],"predecessor-version":[{"id":15753,"href":"https:\/\/www.xintaivalves.com\/ar\/wp-json\/wp\/v2\/posts\/15745\/revisions\/15753"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.xintaivalves.com\/ar\/wp-json\/wp\/v2\/media\/15746"}],"wp:attachment":[{"href":"https:\/\/www.xintaivalves.com\/ar\/wp-json\/wp\/v2\/media?parent=15745"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xintaivalves.com\/ar\/wp-json\/wp\/v2\/categories?post=15745"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xintaivalves.com\/ar\/wp-json\/wp\/v2\/tags?post=15745"}],"curies":[{"name":"\u0648\u0648\u0631\u062f\u0628\u0631\u064a\u0633","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}