{"id":1030,"date":"2026-04-20T22:35:17","date_gmt":"2026-04-21T02:35:17","guid":{"rendered":"https:\/\/www.songhaiflange.com\/?p=1030"},"modified":"2026-04-21T20:18:59","modified_gmt":"2026-04-22T00:18:59","slug":"ped-vs-asme-vs-api-vs-iso-which-pvf-standard-is-strictest","status":"publish","type":"post","link":"https:\/\/www.songhaiflange.com\/vi\/2026\/04\/20\/ped-vs-asme-vs-api-vs-iso-which-pvf-standard-is-strictest\/","title":{"rendered":"PED, ASME, API hay ISO: Ti\u00eau chu\u1ea9n PVF n\u00e0o nghi\u00eam ng\u1eb7t nh\u1ea5t?"},"content":{"rendered":"<h2>So s\u00e1nh c\u00e1c ti\u00eau chu\u1ea9n m\u1eb7t b\u00edch tr\u00ean th\u1ebf gi\u1edbi<\/h2>\n<p>Khi tham gia c\u00e1c d\u1ef1 \u00e1n qu\u1ed1c t\u1ebf, c\u00e1c k\u1ef9 s\u01b0 th\u01b0\u1eddng ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi nhi\u1ec1u ti\u00eau chu\u1ea9n m\u1eb7t b\u00edch kh\u00e1c nhau. Vi\u1ec7c n\u1eafm r\u00f5 nh\u1eefng \u0111i\u1ec3m kh\u00e1c bi\u1ec7t n\u00e0y s\u1ebd gi\u00fap \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh v\u00e0 l\u1ef1a ch\u1ecdn gi\u1ea3i ph\u00e1p t\u1ed1i \u01b0u.<\/p>\n<h3>Ch\u1ec9 th\u1ecb v\u1ec1 thi\u1ebft b\u1ecb ch\u1ecbu \u00e1p l\u1ef1c (PED)<\/h3>\n<p>Ti\u00eau chu\u1ea9n c\u1ee7a Li\u00ean minh Ch\u00e2u \u00c2u<\/p>\n<ul>\n<li>Ph\u1ea1m vi \u00e1p d\u1ee5ng: T\u1ea5t c\u1ea3 c\u00e1c thi\u1ebft b\u1ecb ch\u1ecbu \u00e1p l\u1ef1c \u0111\u01b0\u1ee3c b\u00e1n t\u1ea1i Li\u00ean minh Ch\u00e2u \u00c2u<\/li>\n<li>Ph\u00e2n lo\u1ea1i: C\u00e1c lo\u1ea1i I\u2013IV d\u1ef1a tr\u00ean \u00e1p su\u1ea5t v\u00e0 th\u1ec3 t\u00edch<\/li>\n<li>Y\u00eau c\u1ea7u: D\u1ea5u CE, ch\u1ee9ng nh\u1eadn c\u1ee7a c\u01a1 quan \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh<\/li>\n<li>V\u1eadt li\u1ec7u: Ph\u1ea3i tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n EN v\u00e0 \u0111\u1ea3m b\u1ea3o t\u00ednh truy xu\u1ea5t ngu\u1ed3n g\u1ed1c<\/li>\n<li>Ki\u1ec3m tra: Ki\u1ec3m tra th\u1ee7y t\u0129nh b\u1eaft bu\u1ed9c v\u00e0 ki\u1ec3m tra kh\u00f4ng ph\u00e1 h\u1ee7y (NDT)<\/li>\n<\/ul>\n<h3>Ti\u00eau chu\u1ea9n ASME c\u1ee7a Hoa K\u1ef3<\/h3>\n<p>Ti\u00eau chu\u1ea9n B\u1eafc M\u1ef9<\/p>\n<ul>\n<li>Ph\u1ea1m vi: C\u00e1c ti\u00eau chu\u1ea9n v\u1ec1 n\u1ed3i h\u01a1i, b\u00ecnh \u00e1p l\u1ef1c v\u00e0 h\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng \u1ed1ng<\/li>\n<li>C\u00e1c ti\u00eau chu\u1ea9n ch\u00ednh: B16.5, B16.47, B31.1, B31.3<\/li>\n<li>Ch\u1ee9ng nh\u1eadn: D\u1ea5u ASME U, U2, S<\/li>\n<li>V\u1eadt li\u1ec7u: Ti\u00eau chu\u1ea9n ASTM k\u00e8m theo B\u00e1o c\u00e1o ki\u1ec3m tra v\u1eadt li\u1ec7u (MTR)<\/li>\n<li>\u0110\u01b0\u1ee3c ch\u1ea5p nh\u1eadn tr\u00ean to\u00e0n c\u1ea7u: \u0110\u01b0\u1ee3c ch\u1ea5p nh\u1eadn r\u1ed9ng r\u00e3i tr\u00ean to\u00e0n th\u1ebf gi\u1edbi<\/li>\n<\/ul>\n<h3>Ti\u00eau chu\u1ea9n D\u1ea7u kh\u00ed API<\/h3>\n<p>Ti\u00eau chu\u1ea9n ng\u00e0nh D\u1ea7u kh\u00ed<\/p>\n<ul>\n<li>Ph\u1ea1m vi: Ng\u00e0nh d\u1ea7u m\u1ecf v\u00e0 kh\u00ed \u0111\u1ed1t t\u1ef1 nhi\u00ean<\/li>\n<li>C\u00e1c ti\u00eau chu\u1ea9n ch\u00ednh: API 605, API 6A, API 17D<\/li>\n<li>Tr\u1ecdng t\u00e2m: Thi\u1ebft b\u1ecb \u0111\u1ea7u gi\u1ebfng, \u0111\u01b0\u1eddng \u1ed1ng, nh\u00e0 m\u00e1y l\u1ecdc d\u1ea7u<\/li>\n<li>Monogram: Ch\u01b0\u01a1ng tr\u00ecnh c\u1ea5p ph\u00e9p Monogram API<\/li>\n<\/ul>\n<h3>Ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf ISO<\/h3>\n<p>H\u00e0i h\u00f2a to\u00e0n c\u1ea7u<\/p>\n<ul>\n<li>Ph\u1ea1m vi: Ti\u00eau chu\u1ea9n h\u00f3a qu\u1ed1c t\u1ebf<\/li>\n<li>C\u00e1c ti\u00eau chu\u1ea9n ch\u00ednh: ISO 7005, ISO 15540, ISO 15541<\/li>\n<li>M\u1ee5c ti\u00eau: H\u00e0i h\u00f2a c\u00e1c ti\u00eau chu\u1ea9n ASME v\u00e0 EN<\/li>\n<li>S\u1ef1 c\u00f4ng nh\u1eadn: \u0110\u01b0\u1ee3c ch\u1ea5p nh\u1eadn ng\u00e0y c\u00e0ng r\u1ed9ng r\u00e3i tr\u00ean to\u00e0n c\u1ea7u<\/li>\n<\/ul>\n<h3>So s\u00e1nh m\u1ee9c \u0111\u1ed9 nghi\u00eam ng\u1eb7t<\/h3>\n<p>PED th\u01b0\u1eddng l\u00e0 ti\u00eau chu\u1ea9n nghi\u00eam ng\u1eb7t nh\u1ea5t \u0111\u1ed1i v\u1edbi th\u1ecb tr\u01b0\u1eddng EU, v\u1edbi y\u00eau c\u1ea7u b\u1eaft bu\u1ed9c v\u1ec1 ch\u1ee9ng nh\u1eadn c\u1ee7a b\u00ean th\u1ee9 ba v\u00e0 c\u00e1c y\u00eau c\u1ea7u v\u1ec1 h\u1ed3 s\u01a1 t\u00e0i li\u1ec7u \u0111\u1ea7y \u0111\u1ee7.<\/p>\n<p>Ti\u00eau chu\u1ea9n API l\u00e0 nghi\u00eam ng\u1eb7t nh\u1ea5t \u0111\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng chuy\u00ean d\u1ee5ng trong ng\u00e0nh d\u1ea7u kh\u00ed c\u00f3 y\u00eau c\u1ea7u v\u1ec1 kh\u1ea3 n\u0103ng ho\u1ea1t \u0111\u1ed9ng trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/p>\n<p>ASME n\u1ed5i b\u1eadt nh\u1edd ph\u1ea1m vi \u00e1p d\u1ee5ng ti\u00eau chu\u1ea9n to\u00e0n di\u1ec7n v\u00e0 s\u1ef1 c\u00f4ng nh\u1eadn tr\u00ean to\u00e0n c\u1ea7u.<\/p>\n<h3>H\u01b0\u1edbng d\u1eabn l\u1ef1a ch\u1ecdn<\/h3>\n<ol>\n<li>\u0110\u1ecba \u0111i\u1ec3m d\u1ef1 \u00e1n: EU y\u00eau c\u1ea7u tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n PED, trong khi M\u1ef9 th\u01b0\u1eddng \u00e1p d\u1ee5ng ti\u00eau chu\u1ea9n ASME<\/li>\n<li>Ng\u00e0nh: D\u1ea7u kh\u00ed th\u01b0\u1eddng quy \u0111\u1ecbnh ti\u00eau chu\u1ea9n API<\/li>\n<li>Y\u00eau c\u1ea7u c\u1ee7a kh\u00e1ch h\u00e0ng: Tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n k\u1ef9 thu\u1eadt c\u1ee7a ch\u1ee7 \u0111\u1ea7u t\u01b0<\/li>\n<li>Th\u1ecb tr\u01b0\u1eddng xu\u1ea5t kh\u1ea9u: C\u00e2n nh\u1eafc vi\u1ec7c c\u1ea5p ch\u1ee9ng nh\u1eadn k\u00e9p<\/li>\n<li>T\u00e1c \u0111\u1ed9ng \u0111\u1ebfn chi ph\u00ed: Vi\u1ec7c c\u1ea5p ch\u1ee9ng nh\u1eadn PED th\u01b0\u1eddng l\u00e0m t\u0103ng chi ph\u00ed th\u00eam 15\u201325%<\/li>\n<\/ol>\n<p>Ti\u00eau chu\u1ea9n nghi\u00eam ng\u1eb7t nh\u1ea5t ph\u1ee5 thu\u1ed9c v\u00e0o \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n, nh\u01b0ng PED l\u00e0 ti\u00eau chu\u1ea9n c\u00f3 c\u00e1c y\u00eau c\u1ea7u quy \u0111\u1ecbnh to\u00e0n di\u1ec7n nh\u1ea5t \u0111\u1ed1i v\u1edbi th\u1ecb tr\u01b0\u1eddng ch\u00e2u \u00c2u.<\/p>\n<p><strong>WhatsApp:<\/strong>\u00a0+86-18658777855<br \/>\n<strong>Email:<\/strong>\u00a01007788887@qq.com<br \/>\n<a href=\"https:\/\/www.720yun.com\/vr\/a6ajt7ynrw0\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-884\" src=\"http:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4.webp\" alt=\"\" width=\"1290\" height=\"2317\" title=\"\" srcset=\"https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4.webp 1290w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-167x300.webp 167w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-570x1024.webp 570w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-768x1379.webp 768w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-855x1536.webp 855w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-1140x2048.webp 1140w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-7x12.webp 7w, https:\/\/www.songhaiflange.com\/wp-content\/uploads\/2026\/04\/4-416x747.webp 416w\" sizes=\"auto, (max-width: 1290px) 100vw, 1290px\" \/><\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Comparing Global Flange Standards When working on international projects, engineers encounter multiple flange standards. Understanding the differences helps ensure compliance and optimal selection. PED Pressure Equipment Directive European Union Standard Scope: All pressure equipment sold in EU Classification: Categories I-IV based on pressure and volume Requirements: CE marking, notified body certification Materials: Must use EN [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[81,66,86,70],"class_list":["post-1030","post","type-post","status-publish","format-standard","hentry","category-blog","tag-ansi","tag-flange","tag-jis","tag-standard"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/posts\/1030","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/comments?post=1030"}],"version-history":[{"count":2,"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/posts\/1030\/revisions"}],"predecessor-version":[{"id":1037,"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/posts\/1030\/revisions\/1037"}],"wp:attachment":[{"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/media?parent=1030"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/categories?post=1030"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/tags?post=1030"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}