{"id":1016,"date":"2026-04-17T23:33:02","date_gmt":"2026-04-18T03:33:02","guid":{"rendered":"https:\/\/www.songhaiflange.com\/?p=1016"},"modified":"2026-04-17T23:42:43","modified_gmt":"2026-04-18T03:42:43","slug":"flange-pressure-rating-class-150-to-2500-pn-selection-guide","status":"publish","type":"post","link":"https:\/\/www.songhaiflange.com\/vi\/2026\/04\/17\/flange-pressure-rating-class-150-to-2500-pn-selection-guide\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn l\u1ef1a ch\u1ecdn m\u1ee9c \u00e1p su\u1ea5t m\u1eb7t b\u00edch t\u1eeb PN 150 \u0111\u1ebfn PN 2500"},"content":{"rendered":"<h2>Hi\u1ec3u v\u1ec1 c\u00e1c m\u1ee9c \u00e1p su\u1ea5t \u0111\u1ecbnh m\u1ee9c c\u1ee7a m\u1eb7t b\u00edch<\/h2>\n<p>\u0110\u00e1nh gi\u00e1 \u00e1p su\u1ea5t m\u1eb7t b\u00edch cho bi\u1ebft m\u1ee9c \u00e1p su\u1ea5t t\u1ed1i \u0111a m\u00e0 m\u1eb7t b\u00edch c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c m\u1ed9t c\u00e1ch an to\u00e0n \u1edf m\u1ed9t nhi\u1ec7t \u0111\u1ed9 c\u1ee5 th\u1ec3. Vi\u1ec7c l\u1ef1a ch\u1ecdn m\u1ee9c \u0111\u00e1nh gi\u00e1 ph\u00f9 h\u1ee3p l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u1ed1i v\u1edbi s\u1ef1 an to\u00e0n v\u00e0 vi\u1ec7c tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n<h3>C\u00e1c c\u1ea5p \u00e1p su\u1ea5t theo ti\u00eau chu\u1ea9n ASME<\/h3>\n<table>\n<tr>\n<th>L\u1edbp<\/th>\n<th>\u00c1p su\u1ea5t t\u1ed1i \u0111a (bar)<\/th>\n<th>\u00c1p su\u1ea5t t\u1ed1i \u0111a (psi)<\/th>\n<th>C\u00e1c \u1ee9ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh<\/th>\n<\/tr>\n<tr>\n<td>L\u1edbp 150<\/td>\n<td>19.6<\/td>\n<td>285<\/td>\n<td>H\u1ec7 th\u1ed1ng c\u1ea5p n\u01b0\u1edbc \u00e1p su\u1ea5t th\u1ea5p, h\u1ec7 th\u1ed1ng kh\u00ed n\u00e9n, h\u1ec7 th\u1ed1ng d\u1ecbch v\u1ee5 chung<\/td>\n<\/tr>\n<tr>\n<td>Lo\u1ea1i 300<\/td>\n<td>51.7<\/td>\n<td>750<\/td>\n<td>H\u1ec7 th\u1ed1ng \u1ed1ng d\u1eabn h\u01a1i n\u01b0\u1edbc \u00e1p su\u1ea5t trung b\u00ecnh<\/td>\n<\/tr>\n<tr>\n<td>Lo\u1ea1i 600<\/td>\n<td>110.4<\/td>\n<td>1600<\/td>\n<td>H\u01a1i n\u01b0\u1edbc \u00e1p su\u1ea5t cao, d\u1ea7u m\u1ecf v\u00e0 kh\u00ed \u0111\u1ed1t<\/td>\n<\/tr>\n<tr>\n<td>Lo\u1ea1i 900<\/td>\n<td>165.5<\/td>\n<td>2400<\/td>\n<td>\u0110\u01b0\u1eddng \u1ed1ng c\u00f4ng ngh\u1ec7 \u00e1p su\u1ea5t cao<\/td>\n<\/tr>\n<tr>\n<td>Lo\u1ea1i 1500<\/td>\n<td>275.9<\/td>\n<td>4000<\/td>\n<td>\u00c1p su\u1ea5t r\u1ea5t cao, thi\u1ebft b\u1ecb \u0111\u1ea7u gi\u1ebfng<\/td>\n<\/tr>\n<tr>\n<td>Lo\u1ea1i 2500<\/td>\n<td>459.8<\/td>\n<td>6670<\/td>\n<td>C\u00e1c \u1ee9ng d\u1ee5ng trong \u0111i\u1ec1u ki\u1ec7n \u00e1p su\u1ea5t c\u1ef1c cao<\/td>\n<\/tr>\n<\/table>\n<h3>X\u1ebfp h\u1ea1ng PN ch\u00e2u \u00c2u<\/h3>\n<table>\n<tr>\n<th>X\u1ebfp h\u1ea1ng PN<\/th>\n<th>\u00c1p su\u1ea5t (bar)<\/th>\n<th>Lo\u1ea1i t\u01b0\u01a1ng \u0111\u01b0\u01a1ng theo ti\u00eau chu\u1ea9n ASME<\/th>\n<\/tr>\n<tr>\n<td>PN6<\/td>\n<td>6<\/td>\n<td>D\u01b0\u1edbi h\u1ea1ng 150<\/td>\n<\/tr>\n<tr>\n<td>PN10<\/td>\n<td>10<\/td>\n<td>D\u01b0\u1edbi h\u1ea1ng 150<\/td>\n<\/tr>\n<tr>\n<td>PN16<\/td>\n<td>16<\/td>\n<td>L\u1edbp 150<\/td>\n<\/tr>\n<tr>\n<td>PN25<\/td>\n<td>25<\/td>\n<td>L\u1edbp 150<\/td>\n<\/tr>\n<tr>\n<td>PN40<\/td>\n<td>40<\/td>\n<td>Lo\u1ea1i 300<\/td>\n<\/tr>\n<tr>\n<td>PN63<\/td>\n<td>63<\/td>\n<td>Lo\u1ea1i 400<\/td>\n<\/tr>\n<tr>\n<td>PN100<\/td>\n<td>100<\/td>\n<td>Lo\u1ea1i 600<\/td>\n<\/tr>\n<\/table>\n<h3>C\u00e1c y\u1ebfu t\u1ed1 c\u1ea7n l\u01b0u \u00fd v\u1ec1 nhi\u1ec7t \u0111\u1ed9<\/h3>\n<p>Gi\u00e1 tr\u1ecb \u00e1p su\u1ea5t \u0111\u1ecbnh m\u1ee9c gi\u1ea3m khi nhi\u1ec7t \u0111\u1ed9 t\u0103ng. M\u1ed9t m\u1eb7t b\u00edch lo\u1ea1i 150 c\u00f3 \u00e1p su\u1ea5t \u0111\u1ecbnh m\u1ee9c 285 psi \u1edf nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng c\u00f3 th\u1ec3 ch\u1ec9 c\u00f2n 150 psi \u1edf 400\u00b0F (204\u00b0C).<\/p>\n<h3>\u1ea2nh h\u01b0\u1edfng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn x\u1ebfp h\u1ea1ng<\/h3>\n<ul>\n<li><strong>Th\u00e9p cacbon (A105):<\/strong> C\u00e1c m\u1ee9c \u0111\u1ecbnh m\u1ee9c \u00e1p su\u1ea5t-nhi\u1ec7t \u0111\u1ed9 ti\u00eau chu\u1ea9n<\/li>\n<li><strong>Th\u00e9p kh\u00f4ng g\u1ec9 (304\/316):<\/strong> \u0110\u1ed9 b\u1ec1n t\u01b0\u01a1ng \u0111\u01b0\u01a1ng, kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t h\u01a1n<\/li>\n<li><strong>Th\u00e9p h\u1ee3p kim (F11\/F22):<\/strong> Gi\u1eef \u0111\u01b0\u1ee3c \u0111\u1ed9 b\u1ec1n \u1edf nhi\u1ec7t \u0111\u1ed9 cao<\/li>\n<li><strong>Th\u00e9p hai l\u1edbp:<\/strong> \u0110\u1ed9 b\u1ec1n cao h\u01a1n cho ph\u00e9p thi\u1ebft k\u1ebf m\u1ecfng h\u01a1n<\/li>\n<\/ul>\n<h3>C\u00e1c y\u1ebfu t\u1ed1 l\u1ef1a ch\u1ecdn x\u1ebfp h\u1ea1ng<\/h3>\n<ol>\n<li><strong>\u00c1p su\u1ea5t thi\u1ebft k\u1ebf:<\/strong> \u00c1p su\u1ea5t h\u1ec7 th\u1ed1ng d\u1ef1 ki\u1ebfn t\u1ed1i \u0111a<\/li>\n<li><strong>Nhi\u1ec7t \u0111\u1ed9 thi\u1ebft k\u1ebf:<\/strong> Nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng t\u1ed1i \u0111a<\/li>\n<li><strong>Bi\u00ean \u0111\u1ed9 an to\u00e0n:<\/strong> T\u0103ng \u00e1p su\u1ea5t ho\u1ea1t \u0111\u1ed9ng l\u00ean m\u1ee9c 10-25% so v\u1edbi m\u1ee9c b\u00ecnh th\u01b0\u1eddng<\/li>\n<li><strong>S\u1ef1 t\u0103ng \u00e1p \u0111\u1ed9t ng\u1ed9t:<\/strong> C\u1ea7n xem x\u00e9t hi\u1ec7n t\u01b0\u1ee3ng va \u0111\u1eadp n\u01b0\u1edbc v\u00e0 c\u00e1c \u0111i\u1ec1u ki\u1ec7n t\u1ea1m th\u1eddi<\/li>\n<li><strong>Y\u00eau c\u1ea7u v\u1ec1 m\u00e3:<\/strong> Ti\u00eau chu\u1ea9n ASME B31.1, B31.3 ho\u1eb7c c\u00e1c quy \u0111\u1ecbnh \u0111\u1ecba ph\u01b0\u01a1ng<\/li>\n<li><strong>K\u1ebf ho\u1ea1ch m\u1edf r\u1ed9ng trong t\u01b0\u01a1ng lai:<\/strong> D\u1ef1 tr\u00f9 kh\u1ea3 n\u0103ng t\u0103ng c\u00f4ng su\u1ea5t<\/li>\n<\/ol>\n<h3>Nh\u1eefng sai l\u1ea7m th\u01b0\u1eddng g\u1eb7p c\u1ea7n tr\u00e1nh<\/h3>\n<ul>\n<li>S\u1eed d\u1ee5ng m\u1ee9c nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng \u0111\u1ec3 v\u1eadn h\u00e0nh trong \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 cao<\/li>\n<li>B\u1ecf qua c\u00e1c \u0111\u1ee3t t\u0103ng \u00e1p \u0111\u1ed9t ng\u1ed9t v\u00e0 c\u00e1c \u0111i\u1ec1u ki\u1ec7n t\u1ea1m th\u1eddi<\/li>\n<li>K\u1ebft h\u1ee3p c\u00e1c m\u1eb7t b\u00edch thu\u1ed9c c\u00e1c c\u1ea5p \u00e1p su\u1ea5t kh\u00e1c nhau m\u00e0 kh\u00f4ng c\u00f3 b\u1ed9 gi\u1ea3m \u00e1p th\u00edch h\u1ee3p<\/li>\n<li>Kh\u00f4ng t\u00ednh \u0111\u1ebfn h\u1ec7 s\u1ed1 d\u1ef1 ph\u00f2ng \u0103n m\u00f2n cho th\u1eddi gian s\u1eed d\u1ee5ng l\u00e2u d\u00e0i<\/li>\n<li>Kh\u00f4ng t\u00ednh \u0111\u1ebfn \u0111i\u1ec1u ki\u1ec7n ch\u00e2n kh\u00f4ng (\u00e1p su\u1ea5t b\u00ean ngo\u00e0i)<\/li>\n<\/ul>\n<h3>Ti\u00eau chu\u1ea9n v\u00e0 Quy chu\u1ea9n<\/h3>\n<ul>\n<li>ASME B16.5: M\u1eb7t b\u00edch \u1ed1ng v\u00e0 ph\u1ee5 ki\u1ec7n c\u00f3 m\u1eb7t b\u00edch (NPS 1\/2 \u0111\u1ebfn 24)<\/li>\n<li>ASME B16.47: M\u1eb7t b\u00edch \u0111\u01b0\u1eddng k\u00ednh l\u1edbn (NPS 26 \u0111\u1ebfn 60)<\/li>\n<li>EN 1092-1: M\u1eb7t b\u00edch th\u00e9p ch\u00e2u \u00c2u<\/li>\n<li>ASME B31.1: Ti\u00eau chu\u1ea9n v\u1ec1 h\u1ec7 th\u1ed1ng \u1ed1ng d\u1eabn trong ng\u00e0nh \u0111i\u1ec7n<\/li>\n<li>ASME B31.3: Ti\u00eau chu\u1ea9n h\u1ec7 th\u1ed1ng \u1ed1ng d\u1eabn c\u00f4ng nghi\u1ec7p<\/li>\n<\/ul>\n<h3>Y\u00eau c\u1ea7u v\u1ec1 th\u1eed nghi\u1ec7m \u00e1p su\u1ea5t<\/h3>\n<p>C\u00e1c m\u1eb7t b\u00edch th\u01b0\u1eddng \u0111\u01b0\u1ee3c ki\u1ec3m tra th\u1ee7y t\u0129nh \u1edf \u00e1p su\u1ea5t g\u1ea5p 1,5 l\u1ea7n \u00e1p su\u1ea5t \u0111\u1ecbnh m\u1ee9c \u0111\u1ec3 x\u00e1c minh t\u00ednh to\u00e0n v\u1eb9n tr\u01b0\u1edbc khi \u0111\u01b0a v\u00e0o s\u1eed d\u1ee5ng.<\/p>\n<p>Vi\u1ec7c l\u1ef1a ch\u1ecdn m\u1ee9c \u00e1p su\u1ea5t \u0111\u1ecbnh m\u1ee9c ph\u00f9 h\u1ee3p cho m\u1eb7t b\u00edch s\u1ebd \u0111\u1ea3m b\u1ea3o h\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng \u1ed1ng v\u1eadn h\u00e0nh an to\u00e0n, \u0111\u00e1ng tin c\u1eady v\u00e0 tu\u00e2n th\u1ee7 c\u00e1c quy chu\u1ea9n k\u1ef9 thu\u1eadt trong su\u1ed1t th\u1eddi gian s\u1eed d\u1ee5ng thi\u1ebft k\u1ebf.<\/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>Understanding Flange Pressure Ratings Flange pressure rating indicates the maximum pressure a flange can safely withstand at a specific temperature. Selecting the correct rating is critical for system safety and compliance. ASME Pressure Classes Class Max Pressure (bar) Max Pressure (psi) Typical Applications Class 150 19.6 285 Low pressure water, air, general service Class 300 [&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":[81,66,89,72,70],"class_list":["post-1016","post","type-post","status-publish","format-standard","hentry","category-blog","tag-ansi","tag-flange","tag-pn16","tag-rating","tag-standard"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/posts\/1016","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=1016"}],"version-history":[{"count":2,"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/posts\/1016\/revisions"}],"predecessor-version":[{"id":1018,"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/posts\/1016\/revisions\/1018"}],"wp:attachment":[{"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/media?parent=1016"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/categories?post=1016"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.songhaiflange.com\/vi\/wp-json\/wp\/v2\/tags?post=1016"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}