{"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\/vi\/blog\/butterfly-valve\/what-butterfly-valve-cv-value-flow-coefficient\/","title":{"rendered":"What Is the Butterfly Valve CV Factor and Why is it Relevant?"},"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\">M\u1ee5c l\u1ee5c<\/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=\"Chuy\u1ec3n \u0111\u1ed5i m\u1ee5c l\u1ee5c\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Chuy\u1ec3n \u0111\u1ed5i<\/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\/vi\/blog\/butterfly-valve\/what-butterfly-valve-cv-value-flow-coefficient\/#How_Do_You_Use_the_Butterfly_Valve_CV_Factor_Formula\" >L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 s\u1eed d\u1ee5ng c\u00f4ng th\u1ee9c h\u1ec7 s\u1ed1 CV c\u1ee7a van b\u01b0\u1edbm?<\/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\/vi\/blog\/butterfly-valve\/what-butterfly-valve-cv-value-flow-coefficient\/#Key_Reasons_Why_CV_Calculation_Matters\" >Nh\u1eefng l\u00fd do ch\u00ednh t\u1ea1i sao vi\u1ec7c t\u00ednh to\u00e1n CV l\u1ea1i quan tr\u1ecdng<\/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\/vi\/blog\/butterfly-valve\/what-butterfly-valve-cv-value-flow-coefficient\/#What_is_the_Relationship_Between_Butterfly_Valve_Cv_vs_percent_open\" >M\u1ed1i quan h\u1ec7 gi\u1eefa Cv c\u1ee7a van b\u01b0\u1edbm v\u00e0 ph\u1ea7n tr\u0103m m\u1edf l\u00e0 g\u00ec?<\/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\/vi\/blog\/butterfly-valve\/what-butterfly-valve-cv-value-flow-coefficient\/#Factors_That_Affect_the_CV_Value\" >C\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn gi\u00e1 tr\u1ecb 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\/vi\/blog\/butterfly-valve\/what-butterfly-valve-cv-value-flow-coefficient\/#Why_CV_Matters_for_B2B_Procurement\" >T\u1ea1i sao CV l\u1ea1i quan tr\u1ecdng \u0111\u1ed1i v\u1edbi vi\u1ec7c mua s\u1eafm 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\/vi\/blog\/butterfly-valve\/what-butterfly-valve-cv-value-flow-coefficient\/#Conclusion\" >Ph\u1ea7n k\u1ebft lu\u1eadn<\/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\/vi\/blog\/butterfly-valve\/what-butterfly-valve-cv-value-flow-coefficient\/#Frequently_Asked_Questions_FAQs\" >C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (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\/vi\/blog\/butterfly-valve\/what-butterfly-valve-cv-value-flow-coefficient\/#1_What_is_a_good_Cv_value_for_a_butterfly_valve\" >1. Gi\u00e1 tr\u1ecb Cv t\u1ed1t cho van b\u01b0\u1edbm l\u00e0 bao nhi\u00eau?<\/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\/vi\/blog\/butterfly-valve\/what-butterfly-valve-cv-value-flow-coefficient\/#2_How_do_I_find_the_Cv_factor_table_for_my_valve_size\" >2. L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 t\u00ecm b\u1ea3ng h\u1ec7 s\u1ed1 Cv cho k\u00edch th\u01b0\u1edbc van c\u1ee7a t\u00f4i?<\/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\/vi\/blog\/butterfly-valve\/what-butterfly-valve-cv-value-flow-coefficient\/#3_Does_CV_change_with_the_valve_material\" >3. CV c\u00f3 thay \u0111\u1ed5i theo v\u1eadt li\u1ec7u van kh\u00f4ng?<\/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\/vi\/blog\/butterfly-valve\/what-butterfly-valve-cv-value-flow-coefficient\/#4_Can_I_estimate_flow_without_a_calculator\" >4. T\u00f4i c\u00f3 th\u1ec3 \u01b0\u1edbc t\u00ednh l\u01b0u l\u01b0\u1ee3ng m\u00e0 kh\u00f4ng c\u1ea7n m\u00e1y t\u00ednh kh\u00f4ng?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\">C\u00e1c <strong>h\u1ec7 s\u1ed1 CV c\u1ee7a van b\u01b0\u1edbm <\/strong>l\u00e0 m\u1ed9t th\u01b0\u1edbc \u0111o ti\u00eau chu\u1ea9n v\u1ec1 kh\u1ea3 n\u0103ng l\u01b0u th\u00f4ng c\u1ee7a n\u00f3. N\u00f3 cho b\u1ea1n bi\u1ebft van \u0111i qua bao nhi\u00eau ch\u1ea5t l\u1ecfng \u1edf m\u1ed9t gi\u1ecdt \u00e1p su\u1ea5t nh\u1ea5t \u0111\u1ecbnh. Gi\u00e1 tr\u1ecb CV ho\u1eb7c <a href=\"https:\/\/www.xintaivalves.com\/vi\/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\">h\u1ec7 s\u1ed1 l\u01b0u l\u01b0\u1ee3ng<\/a> \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng gallon M\u1ef9 m\u1ed7i ph\u00fat v\u00e0 \u0111i qua van \u1edf gi\u1ecdt \u00e1p su\u1ea5t 1 psi.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c k\u1ef9 s\u01b0 s\u1eed d\u1ee5ng <strong>t\u00ednh to\u00e1n l\u01b0u l\u01b0\u1ee3ng van b\u01b0\u1edbm <\/strong>\u0111\u1ec3 ch\u1ecdn k\u00edch th\u01b0\u1edbc van ph\u00f9 h\u1ee3p. C\u00e1c nh\u00f3m mua h\u00e0ng so s\u00e1nh th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt n\u00e0y gi\u1eefa c\u00e1c nh\u00e0 cung c\u1ea5p tr\u01b0\u1edbc khi \u0111\u1eb7t h\u00e0ng.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L\u1ef1a ch\u1ecdn CV sai c\u00f3 th\u1ec3 g\u00e2y ra <a href=\"https:\/\/www.xintaivalves.com\/vi\/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\">ki\u1ec3m so\u00e1t d\u00f2ng ch\u1ea3y<\/a> ho\u1eb7c l\u00e3ng ph\u00ed n\u0103ng l\u01b0\u1ee3ng b\u01a1m. H\u01b0\u1edbng d\u1eabn n\u00e0y gi\u1ea3i th\u00edch c\u00f4ng th\u1ee9c, <strong>bi\u1ec3u \u0111\u1ed3 Cv van b\u01b0\u1edbm<\/strong>, v\u00e0 c\u00e1c b\u1ea3ng b\u1ea1n c\u1ea7n \u0111\u1ec3 l\u1ef1a ch\u1ecdn ch\u00ednh x\u00e1c.<\/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>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 s\u1eed d\u1ee5ng c\u00f4ng th\u1ee9c h\u1ec7 s\u1ed1 CV c\u1ee7a van b\u01b0\u1edbm?<\/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=\"C\u00f4ng th\u1ee9c H\u1ec7 s\u1ed1 CV Van b\u01b0\u1edbm\" 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\">T\u00ednh to\u00e1n <strong>h\u1ec7 s\u1ed1 Cv van b\u01b0\u1edbm<\/strong> l\u00e0 r\u1ea5t quan tr\u1ecdng. N\u00f3 tr\u1ef1c ti\u1ebfp x\u00e1c \u0111\u1ecbnh xem van c\u1ee7a b\u1ea1n c\u00f3 ho\u1ea1t \u0111\u1ed9ng ch\u00ednh x\u00e1c trong nh\u00e0 m\u00e1y h\u00f3a ch\u1ea5t ho\u1eb7c h\u1ec7 th\u1ed1ng c\u00f4ng nghi\u1ec7p c\u1ee7a b\u1ea1n hay kh\u00f4ng.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u n\u00e0y gi\u00fap c\u00e1c k\u1ef9 s\u01b0 t\u00ednh to\u00e1n k\u00edch th\u01b0\u1edbc b\u01a1m v\u00e0 ch\u1ecdn \u0111\u01b0\u1eddng k\u00ednh \u1ed1ng ch\u00ednh x\u00e1c. Nhi\u1ec1u nh\u00e0 cung c\u1ea5p cung c\u1ea5p mi\u1ec5n ph\u00ed tr\u1ef1c tuy\u1ebfn <strong>m\u00e1y t\u00ednh gi\u1ea3m \u00e1p l\u1ef1c van b\u01b0\u1edbm<\/strong> ho\u1eb7c c\u00e1c c\u00f4ng c\u1ee5 b\u1ea3ng t\u00ednh cho m\u1ee5c \u0111\u00edch n\u00e0y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 c\u00f4ng th\u1ee9c ti\u00eau chu\u1ea9n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u00ednh Cv cho l\u01b0u l\u01b0\u1ee3ng ch\u1ea5t l\u1ecfng:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u01a1 b\u1ea3n <strong>c\u00f4ng th\u1ee9c h\u1ec7 s\u1ed1 Cv van b\u01b0\u1edbm<\/strong> l\u00e0 <em>Cv = Q x c\u0103n b\u1eadc hai c\u1ee7a (SG \/ dP<\/em>).&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Q \u0111\u1ea1i di\u1ec7n cho l\u01b0u l\u01b0\u1ee3ng t\u00ednh b\u1eb1ng gallon m\u1ed7i ph\u00fat. SG l\u00e0 tr\u1ecdng l\u1ef1c ri\u00eang c\u1ee7a ch\u1ea5t l\u1ecfng, v\u1edbi n\u01b0\u1edbc b\u1eb1ng 1.<\/li>\n\n\n\n<li>dP l\u00e0 s\u1ee5t \u00e1p qua van t\u00ednh b\u1eb1ng psi. V\u00ed d\u1ee5, n\u1ebfu n\u01b0\u1edbc ch\u1ea3y v\u1edbi t\u1ed1c \u0111\u1ed9 100 GPM v\u1edbi s\u1ee5t \u00e1p 4 psi, Cv b\u1eb1ng 50.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">H\u1ec7 th\u1ed1ng \u0111o l\u01b0\u1eddng theo h\u1ec7 m\u00e9t th\u01b0\u1eddng s\u1eed d\u1ee5ng Kv thay v\u00ec Cv. Kv x\u1ea5p x\u1ec9 b\u1eb1ng 0,865 l\u1ea7n Cv cho c\u00f9ng m\u1ed9t van.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Key_Reasons_Why_CV_Calculation_Matters\"><\/span><strong>Nh\u1eefng l\u00fd do ch\u00ednh t\u1ea1i sao vi\u1ec7c t\u00ednh to\u00e1n CV l\u1ea1i quan tr\u1ecdng<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>K\u00edch th\u01b0\u1edbc van ph\u00f9 h\u1ee3p <\/strong>\u2013 \u0110\u00e2y l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng nh\u1ea5t trong vi\u1ec7c x\u00e1c \u0111\u1ecbnh kh\u1ea3 n\u0103ng l\u01b0u th\u00f4ng. CV l\u00e0 x\u01b0\u01a1ng s\u1ed1ng c\u1ee7a <a href=\"https:\/\/www.xintaivalves.com\/vi\/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\">vi\u1ec7c \u0111\u1ecbnh c\u1ee1 van<\/a> c\u00e1c ph\u00e9p t\u00ednh. Vi\u1ec7c \u0111\u1ecbnh c\u1ee1 van ph\u00f9 h\u1ee3p \u0111\u1ea3m b\u1ea3o l\u01b0u l\u01b0\u1ee3ng \u0111\u1ea7y \u0111\u1ee7 m\u00e0 kh\u00f4ng l\u00e0m qu\u00e1 c\u1ee1 ho\u1eb7c d\u01b0\u1edbi c\u1ee1 van.\u00a0<\/li>\n\n\n\n<li><strong>Ng\u0103n ng\u1eeba c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 hi\u1ec7u su\u1ea5t <\/strong>\u2013 D\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng t\u00f3m t\u1eaft c\u00e1c v\u1ea5n \u0111\u1ec1 v\u00e0 nguy\u00ean nh\u00e2n c\u1ee7a ch\u00fang:<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>V\u1ea5n \u0111\u1ec1<\/strong><\/td><td><strong>N\u1ebfu CV qu\u00e1 th\u1ea5p<\/strong><\/td><td><strong>N\u1ebfu CV qu\u00e1 cao<\/strong><\/td><\/tr><tr><td><strong>L\u01b0u l\u01b0\u1ee3ng d\u00f2ng ch\u1ea3y<\/strong><\/td><td>Gi\u1ea3m t\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea3y<\/td><td>\u2014<\/td><\/tr><tr><td><strong>Gi\u1ea3m \u00e1p su\u1ea5t<\/strong><\/td><td>S\u1ee5t \u00e1p qu\u00e1 m\u1ee9c<\/td><td>\u2014<\/td><\/tr><tr><td><strong>N\u0103ng l\u01b0\u1ee3ng<\/strong><\/td><td>T\u0103ng ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng c\u1ee7a b\u01a1m<\/td><td>T\u0103ng ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng.<\/td><\/tr><tr><td><strong>\u0110i\u1ec1u khi\u1ec3n<\/strong><\/td><td>\u2014<\/td><td>Ki\u1ec3m so\u00e1t d\u00f2ng ch\u1ea3y k\u00e9m &amp; m\u1ea5t \u1ed5n \u0111\u1ecbnh.<\/td><\/tr><tr><td><strong>H\u1ec7 th\u1ed1ng<\/strong><\/td><td>\u2014<\/td><td>\u0110i\u1ec1u ki\u1ec7n d\u00f2ng ch\u1ea3y kh\u00f4ng \u1ed5n \u0111\u1ecbnh, c\u00f3 th\u1ec3 g\u00e2y h\u01b0 h\u1ecfng van.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>T\u1ed1i \u01b0u h\u00f3a Th\u1ee7y l\u1ef1c H\u1ec7 th\u1ed1ng \u2013 <\/strong>C\u00e1c k\u1ef9 s\u01b0 s\u1eed d\u1ee5ng \u0111i\u1ec1u n\u00e0y \u0111\u1ec3 t\u00ednh to\u00e1n s\u1ee5t \u00e1p v\u00e0 \u01b0\u1edbc t\u00ednh l\u01b0u l\u01b0\u1ee3ng trong thi\u1ebft k\u1ebf \u0111\u01b0\u1eddng \u1ed1ng. N\u00f3 gi\u00fap t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t h\u1ec7 th\u1ed1ng ch\u1ea5t l\u1ecfng.<\/li>\n\n\n\n<li><strong>L\u1ef1a ch\u1ecdn &amp; So s\u00e1nh Van Ch\u00ednh x\u00e1c \u2013 <\/strong>M\u1ed9t th\u01b0\u1edbc \u0111o ti\u00eau chu\u1ea9n h\u00f3a gi\u00fap so s\u00e1nh kh\u1ea3 n\u0103ng d\u00f2ng ch\u1ea3y c\u1ee7a c\u00e1c van kh\u00e1c nhau. C\u00e1c lo\u1ea1i van kh\u00e1c nhau cung c\u1ea5p c\u00e1c kh\u1ea3 n\u0103ng Cv kh\u00e1c nhau. V\u00ed d\u1ee5, c\u00e1c van c\u00f3 Cv t\u1eeb 50 \u0111\u1ebfn 200+ c\u00f3 hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed cho kh\u1ea3 n\u0103ng d\u00f2ng ch\u1ea3y l\u1edbn.<\/li>\n\n\n\n<li><strong>Hi\u1ec7u qu\u1ea3 N\u0103ng l\u01b0\u1ee3ng &amp; Ti\u1ebft ki\u1ec7m Chi ph\u00ed \u2013 <\/strong>Cv ph\u00f9 h\u1ee3p gi\u00fap gi\u1ea3m thi\u1ec3u t\u1ed5n th\u1ea5t \u00e1p su\u1ea5t, gi\u1ea3m chi ph\u00ed v\u1eadn h\u00e0nh v\u00e0 tr\u00e1nh l\u00e3ng ph\u00ed n\u0103ng l\u01b0\u1ee3ng do k\u00edch th\u01b0\u1edbc kh\u00f4ng ph\u00f9 h\u1ee3p.\u00a0<\/li>\n\n\n\n<li><strong>\u1ed4n \u0111\u1ecbnh Quy tr\u00ecnh \u2013 <\/strong>Cv ph\u00f9 h\u1ee3p c\u1ea3i thi\u1ec7n ph\u1ea3n \u1ee9ng \u0111i\u1ec1u khi\u1ec3n, ng\u0103n ng\u1eeba dao \u0111\u1ed9ng v\u00e0 r\u1ea5t c\u1ea7n thi\u1ebft cho vi\u1ec7c ki\u1ec3m so\u00e1t h\u1ec7 th\u1ed1ng \u1ed5n \u0111\u1ecbnh.\u00a0<\/li>\n\n\n\n<li><strong>Kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 &amp; B\u1ea3o tr\u00ec \u2013 <\/strong>\u0110i\u1ec1u n\u00e0y gi\u00fap x\u00e1c \u0111\u1ecbnh s\u1ef1 suy gi\u1ea3m c\u1ee7a van trong c\u00e1c h\u1ec7 th\u1ed1ng x\u1eed l\u00fd h\u00f3a ch\u1ea5t. S\u1ef1 thay \u0111\u1ed5i Cv th\u1ef1c t\u1ebf th\u01b0\u1eddng cho th\u1ea5y s\u1ef1 m\u00e0i m\u00f2n, t\u1eafc ngh\u1ebdn ho\u1eb7c c\u00e1c v\u1ea5n \u0111\u1ec1 l\u1eafp \u0111\u1eb7t.\u00a0<\/li>\n\n\n\n<li><strong>\u0110\u1ed9 tin c\u1eady c\u1ee7a H\u1ec7 th\u1ed1ng \u2013 <\/strong>L\u1ef1a ch\u1ecdn CV ch\u00ednh x\u00e1c gi\u00fap \u1ed5n \u0111\u1ecbnh th\u1ee7y l\u1ef1c \u0111\u01b0\u1eddng \u1ed1ng. N\u00f3 ng\u0103n ng\u1eeba s\u1ef1 suy tho\u00e1i s\u1edbm c\u1ee7a gh\u1ebf van v\u00e0 lo\u1ea1i b\u1ecf c\u00e1c \u0111i\u1ec3m s\u1ee5t \u00e1p c\u1ee5c b\u1ed9.<\/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>M\u1ed1i quan h\u1ec7 gi\u1eefa Cv c\u1ee7a van b\u01b0\u1edbm v\u00e0 ph\u1ea7n tr\u0103m m\u1edf l\u00e0 g\u00ec?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed1i quan h\u1ec7 gi\u1eefa <strong>Cv v\u00e0 ph\u1ea7n tr\u0103m m\u1edf c\u1ee7a van b\u01b0\u1edbm<\/strong> kh\u00f4ng tuy\u1ebfn t\u00ednh. \u1ede g\u00f3c m\u1edf th\u1ea5p, d\u01b0\u1edbi 20 \u0111\u1ed9, Cv v\u1eabn r\u1ea5t th\u1ea5p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1eeb 30 \u0111\u1ebfn 70 \u0111\u1ed9, Cv t\u0103ng m\u1ea1nh v\u1edbi m\u1ed7i l\u1ea7n \u0111i\u1ec1u ch\u1ec9nh nh\u1ecf. Sau 70 \u0111\u1ed9, vi\u1ec7c m\u1edf th\u00eam ch\u1ec9 t\u0103ng th\u00eam m\u1ed9t ch\u00fat l\u01b0u l\u01b0\u1ee3ng. T\u1eeb 30 \u0111\u1ebfn 70 \u0111\u1ed9, van th\u1ec3 hi\u1ec7n \u0111\u1eb7c t\u00ednh l\u01b0u l\u01b0\u1ee3ng theo t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m b\u1eb1ng nhau. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 Cv t\u0103ng theo c\u1ea5p s\u1ed1 nh\u00e2n v\u1edbi c\u00e1c \u0111i\u1ec1u ch\u1ec9nh g\u00f3c nh\u1ecf.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u01b0\u1eddng cong n\u00e0y quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng van \u0111i\u1ec1u khi\u1ec3n. Ng\u01b0\u1eddi v\u1eadn h\u00e0nh c\u1ea7n ki\u1ec3m so\u00e1t t\u1ed1t trong ph\u1ea1m vi gi\u1eefa d\u1ed1c \u0111\u1ec3 tr\u00e1nh l\u01b0u l\u01b0\u1ee3ng \u0111\u1ed9t ng\u1ed9t t\u0103ng v\u1ecdt.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Factors_That_Affect_the_CV_Value\"><\/span><strong>C\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn gi\u00e1 tr\u1ecb 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=\"C\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn gi\u00e1 tr\u1ecb 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\">M\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn x\u1ebfp h\u1ea1ng CV cu\u1ed1i c\u00f9ng c\u1ee7a van b\u01b0\u1edbm. K\u00edch th\u01b0\u1edbc van c\u00f3 t\u00e1c \u0111\u1ed9ng l\u1edbn nh\u1ea5t, v\u00ec l\u1ed7 khoan l\u1edbn h\u01a1n cho ph\u00e9p nhi\u1ec1u ch\u1ea5t l\u1ecfng \u0111i qua h\u01a1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Thi\u1ebft k\u1ebf \u0111\u0129a c\u0169ng quan tr\u1ecdng. \u0110\u0129a l\u1ec7ch t\u00e2m th\u01b0\u1eddng \u0111\u1ea1t Cv cao h\u01a1n thi\u1ebft k\u1ebf \u0111\u1ed3ng t\u00e2m \u1edf c\u00f9ng k\u00edch th\u01b0\u1edbc danh ngh\u0129a.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1eadt li\u1ec7u \u0111\u1ec7m v\u00e0 \u0111\u1ed9 d\u00e0y l\u1edbp l\u00f3t c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m nh\u1eb9 di\u1ec7n t\u00edch l\u01b0u th\u00f4ng hi\u1ec7u qu\u1ea3. Ki\u1ec3u th\u00e2n van, nh\u01b0 wafer, lug ho\u1eb7c m\u1eb7t b\u00edch, c\u00f3 \u1ea3nh h\u01b0\u1edfng nh\u1ecf h\u01a1n nh\u01b0ng c\u00f3 th\u1ec3 \u0111o \u0111\u01b0\u1ee3c \u0111\u1ebfn Cv.<\/p>\n\n\n\n\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n  <title>S\u1ea3n ph\u1ea9m n\u1ed5i b\u1eadt c\u1ee7a Hero<\/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\/vi\/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=\"Van b\u01b0\u1edbm\">\n  <div class=\"hero-content\">\n    <div class=\"hero-title\">\ud83d\udee0 Van b\u01b0\u1edbm<\/div>\n    <div class=\"hero-description\">Van b\u01b0\u1edbm \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ch\u00ednh x\u00e1c \u0111\u1ec3 ki\u1ec3m so\u00e1t l\u01b0u l\u01b0\u1ee3ng hi\u1ec7u qu\u1ea3 trong nhi\u1ec1u \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p. Hi\u1ec7u su\u1ea5t \u0111\u00e1ng tin c\u1eady cho c\u1ea3 h\u1ec7 th\u1ed1ng \u00e1p su\u1ea5t cao v\u00e0 th\u1ea5p.<\/div>\n    <span class=\"hero-link\">Kh\u00e1m ph\u00e1 s\u1ea3n ph\u1ea9m<\/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>T\u1ea1i sao CV l\u1ea1i quan tr\u1ecdng \u0111\u1ed1i v\u1edbi vi\u1ec7c mua s\u1eafm B2B<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">So s\u00e1nh <strong>h\u1ec7 s\u1ed1 Cv van b\u01b0\u1edbm<\/strong> gi\u1eefa c\u00e1c nh\u00e0 cung c\u1ea5p gi\u00fap ng\u01b0\u1eddi mua tr\u00e1nh c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt kh\u00f4ng kh\u1edbp. Van c\u00f3 Cv kh\u00f4ng \u0111\u1ee7 s\u1ebd t\u1ea1o ra s\u1ee5t \u00e1p qu\u00e1 m\u1ee9c v\u00e0 l\u00e3ng ph\u00ed n\u0103ng l\u01b0\u1ee3ng b\u01a1m.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Van qu\u00e1 kh\u1ed5 c\u00f3 th\u1ec3 ki\u1ec3m so\u00e1t k\u00e9m \u1edf l\u01b0u l\u01b0\u1ee3ng th\u1ea5p. Y\u00eau c\u1ea7u <strong>bi\u1ec3u \u0111\u1ed3 h\u1ec7 s\u1ed1 Cv c\u1ee7a van b\u01b0\u1edbm<\/strong> v\u00e0 d\u1eef li\u1ec7u th\u1eed nghi\u1ec7m trong giai \u0111o\u1ea1n b\u00e1o gi\u00e1 s\u1ebd b\u1ea3o v\u1ec7 ti\u1ebfn \u0111\u1ed9 v\u00e0 ng\u00e2n s\u00e1ch d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><strong>Ph\u1ea7n k\u1ebft lu\u1eadn<\/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=\"Kh\u1edbp CV, \u0111\u1ea3m b\u1ea3o hi\u1ec7u qu\u1ea3 n\u0103ng l\u01b0\u1ee3ng v\u00e0 s\u1ef1 \u1ed5n \u0111\u1ecbnh th\u1ee7y l\u1ef1c t\u1ed1i \u01b0u c\u1ee7a \u0111\u01b0\u1eddng \u1ed1ng.\" 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\">Hi\u1ec3u bi\u1ebft v\u1ec1 <strong>t\u00ednh to\u00e1n l\u01b0u l\u01b0\u1ee3ng van b\u01b0\u1edbm<\/strong> gi\u00fap b\u1ea1n ch\u1ecdn van ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u l\u01b0u l\u01b0\u1ee3ng v\u00e0 \u00e1p su\u1ea5t c\u1ee7a h\u1ec7 th\u1ed1ng. Xintai Valve c\u00f3 c\u00f4ng c\u1ee5 tr\u1ef1c tuy\u1ebfn <strong>t\u00ednh to\u00e1n l\u01b0u l\u01b0\u1ee3ng van b\u01b0\u1edbm<\/strong> \u0111\u1ec3 gi\u00fap t\u00ednh to\u00e1n k\u00edch th\u01b0\u1edbc van.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Xintai Valves c\u0169ng s\u1ea3n xu\u1ea5t van b\u01b0\u1edbm \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m theo ti\u00eau chu\u1ea9n ISO 9001, <a href=\"https:\/\/www.xintaivalves.com\/vi\/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>, v\u00e0 EN 593. Nh\u00e0 m\u00e1y c\u1ee7a ch\u00fang t\u00f4i c\u00f3 ch\u1ee9ng nh\u1eadn CE v\u00e0 API v\u00e0 xu\u1ea5t kh\u1ea9u sang h\u01a1n 60 qu\u1ed1c gia.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.xintaivalves.com\/vi\/contact\/\" target=\"_blank\" rel=\"noreferrer noopener\">Li\u00ean h\u1ec7 \u0111\u1ed9i ng\u0169 k\u1ef9 thu\u1eadt c\u1ee7a Xintai Valves<\/a> \u0111\u1ec3 c\u00f3 <strong>t\u1ec7p PDF h\u1ec7 s\u1ed1 Cv c\u1ee7a van b\u01b0\u1edbm<\/strong> ph\u00f9 h\u1ee3p v\u1edbi y\u00eau c\u1ea7u d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Frequently_Asked_Questions_FAQs\"><\/span><strong>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (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. Gi\u00e1 tr\u1ecb Cv t\u1ed1t cho van b\u01b0\u1edbm l\u00e0 bao nhi\u00eau?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">CV l\u00fd t\u01b0\u1edfng ph\u1ee5 thu\u1ed9c v\u00e0o l\u01b0u l\u01b0\u1ee3ng h\u1ec7 th\u1ed1ng v\u00e0 t\u1ed5n th\u1ea5t \u00e1p su\u1ea5t cho ph\u00e9p c\u1ee7a b\u1ea1n. T\u00ednh to\u00e1n Cv c\u1ea7n thi\u1ebft t\u1eeb d\u1eef li\u1ec7u quy tr\u00ecnh c\u1ee7a b\u1ea1n, sau \u0111\u00f3 \u0111\u1ed1i chi\u1ebfu v\u1edbi k\u00edch th\u01b0\u1edbc van t\u1eeb b\u1ea3ng c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t.<\/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. L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 t\u00ecm b\u1ea3ng h\u1ec7 s\u1ed1 Cv cho k\u00edch th\u01b0\u1edbc van c\u1ee7a t\u00f4i?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Y\u00eau c\u1ea7u <strong>b\u1ea3ng h\u1ec7 s\u1ed1 CV c\u1ee7a van b\u01b0\u1edbm<\/strong> ho\u1eb7c t\u1ec7p PDF tr\u1ef1c ti\u1ebfp t\u1eeb nh\u00e0 s\u1ea3n xu\u1ea5t. Xintai Valves bao g\u1ed3m b\u1ea3ng d\u1eef li\u1ec7u n\u00e0y v\u1edbi m\u1ed7i y\u00eau c\u1ea7u s\u1ea3n ph\u1ea9m.<\/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. CV c\u00f3 thay \u0111\u1ed5i theo v\u1eadt li\u1ec7u van kh\u00f4ng?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1eadt li\u1ec7u th\u00e2n v\u00e0 \u0111\u0129a c\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp t\u1ed1i thi\u1ec3u \u0111\u1ebfn Cv. Tuy nhi\u00ean, \u0111\u1ed9 d\u00e0y l\u1edbp l\u00f3t trong c\u00e1c van l\u00f3t PTFE c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m nh\u1eb9 di\u1ec7n t\u00edch d\u00f2ng ch\u1ea3y. V\u00ed d\u1ee5, c\u00e1c van b\u01b0\u1edbm \u0111\u1ed3ng t\u00e2m c\u00f3 l\u1edbp l\u00f3t \u0111\u00e0n h\u1ed3i ho\u1eb7c PTFE d\u00e0y l\u00e0m gi\u1ea3m \u0111\u01b0\u1eddng k\u00ednh trong danh ngh\u0129a \u0111i 2\u20135%. \u0110i\u1ec1u n\u00e0y l\u00e0m gi\u1ea3m Cv th\u1ef1c t\u1ebf so v\u1edbi van kh\u00f4ng l\u00f3t.<\/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>T\u00f4i c\u00f3 th\u1ec3 \u01b0\u1edbc t\u00ednh l\u01b0u l\u01b0\u1ee3ng m\u00e0 kh\u00f4ng c\u1ea7n m\u00e1y t\u00ednh kh\u00f4ng?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3. S\u1eed d\u1ee5ng c\u00f4ng th\u1ee9c \u0111\u00e3 s\u1eafp x\u1ebfp l\u1ea1i Q = Cv x c\u0103n b\u1eadc hai c\u1ee7a (dP \/ SG) \u0111\u1ec3 \u01b0\u1edbc t\u00ednh nhanh b\u1eb1ng tay. Tuy nhi\u00ean, h\u00e3y c\u1ea9n th\u1eadn khi \u0111\u01b0a ra \u01b0\u1edbc t\u00ednh. M\u1ed9t sai s\u1ed1 nh\u1ecf c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng l\u1edbn \u0111\u1ebfn hi\u1ec7u qu\u1ea3 d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n.<\/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\/vi\/contact\/\" style=\"font-style:normal;font-weight:500\" target=\"_blank\" rel=\"noreferrer noopener\">Nh\u1eadn B\u00e1o Gi\u00e1<\/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\/vi\/wp-json\/wp\/v2\/posts\/15745","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xintaivalves.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xintaivalves.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xintaivalves.com\/vi\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xintaivalves.com\/vi\/wp-json\/wp\/v2\/comments?post=15745"}],"version-history":[{"count":3,"href":"https:\/\/www.xintaivalves.com\/vi\/wp-json\/wp\/v2\/posts\/15745\/revisions"}],"predecessor-version":[{"id":15753,"href":"https:\/\/www.xintaivalves.com\/vi\/wp-json\/wp\/v2\/posts\/15745\/revisions\/15753"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.xintaivalves.com\/vi\/wp-json\/wp\/v2\/media\/15746"}],"wp:attachment":[{"href":"https:\/\/www.xintaivalves.com\/vi\/wp-json\/wp\/v2\/media?parent=15745"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xintaivalves.com\/vi\/wp-json\/wp\/v2\/categories?post=15745"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xintaivalves.com\/vi\/wp-json\/wp\/v2\/tags?post=15745"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}