{"id":3327,"date":"2025-07-21T01:03:09","date_gmt":"2025-07-21T01:03:09","guid":{"rendered":"https:\/\/hfittings.com\/so-flange-key-specifications-and-uses-explained\/"},"modified":"2025-07-21T01:03:09","modified_gmt":"2025-07-21T01:03:09","slug":"so-flange-key-specifications-and-uses-explained","status":"publish","type":"post","link":"https:\/\/hfittings.com\/vi\/so-flange-key-specifications-and-uses-explained\/","title":{"rendered":"Hi\u1ec3u v\u1ec1 Flange: Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u00e0 \u1ee8ng d\u1ee5ng"},"content":{"rendered":"<p><figure loading=\"lazy\" class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/hfittings.com\/wp-content\/uploads\/2025\/07\/d3d111be-6fe0-494f-bd0e-175521f6f267.png\" alt=\"L\u1eafp \u0111\u1eb7t m\u1eb7t b\u00edch SO ngo\u00e0i tr\u1eddi\" style=\"display: block; margin-block: 10px;\"><\/figure>\n<\/p>\n<h2>\u0110i\u1ec3m nh\u1ea5n ch\u00ednh<\/h2>\n<ul>\n<li>SO flange, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 flange tr\u01b0\u1ee3t, \u0111\u01b0\u1ee3c tr\u01b0\u1ee3t qua \u1ed1ng th\u00e9p v\u00e0 k\u1ebft n\u1ed1i th\u00f4ng qua h\u00e0n g\u00f3c t\u1ea1i ph\u1ea7n tr\u00ean v\u00e0 d\u01b0\u1edbi c\u1ee7a flange.<\/li>\n<li>C\u00e1c flange tr\u01b0\u1ee3t \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 l\u1eafp \u0111\u1eb7t v\u00e0 c\u0103n ch\u1ec9nh d\u1ec5 d\u00e0ng, ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng \u00e1p su\u1ea5t th\u1ea5p trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p.<\/li>\n<li>Ch\u00fang th\u01b0\u1eddng c\u00f3 chi ph\u00ed hi\u1ec7u qu\u1ea3 h\u01a1n so v\u1edbi c\u00e1c lo\u1ea1i kh\u00e1c nh\u01b0 flange h\u00e0n c\u1ed5.<\/li>\n<li>C\u00e1c v\u1eadt li\u1ec7u s\u1ea3n xu\u1ea5t th\u00f4ng d\u1ee5ng bao g\u1ed3m th\u00e9p kh\u00f4ng g\u1ec9, th\u00e9p carbon v\u00e0 c\u00e1c h\u1ee3p kim tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n ASTM v\u00e0 ASME.<\/li>\n<li>C\u00e1c lo\u1ea1i m\u1eb7t b\u00edch SO c\u00f3 m\u1eb7t b\u00edch n\u00e2ng cao v\u00e0 lo\u1ea1i RTJ cung c\u1ea5p kh\u1ea3 n\u0103ng l\u00e0m k\u00edn c\u1ea3i thi\u1ec7n cho c\u00e1c h\u1ec7 th\u1ed1ng \u00e1p su\u1ea5t kh\u00e1c nhau.<\/li>\n<\/ul>\n<h2>Gi\u1edbi thi\u1ec7u<\/h2>\n<p>C\u00e1c m\u1eb7t b\u00edch \u1ed1ng, bao g\u1ed3m c\u1ea3 m\u1eb7t b\u00edch \u1ed1ng th\u00e9p, l\u00e0 c\u00e1c b\u1ed9 ph\u1eadn quan tr\u1ecdng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi c\u1ea7n k\u1ebft n\u1ed1i \u1ed1ng th\u00e9p trong h\u1ec7 th\u1ed1ng. M\u1eb7t b\u00edch tr\u01b0\u1ee3t (slip-on flange), c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 m\u1eb7t b\u00edch SO, n\u1ed5i ti\u1ebfng v\u1edbi thi\u1ebft k\u1ebf \u0111\u01a1n gi\u1ea3n nh\u01b0ng hi\u1ec7u qu\u1ea3. Lo\u1ea1i n\u00e0y kh\u00f4ng y\u00eau c\u1ea7u \u0111\u1ed9 ch\u00ednh x\u00e1c cao v\u1ec1 v\u1ecb tr\u00ed nh\u01b0 m\u1eb7t b\u00edch h\u00e0n c\u1ed5 (welding neck flange). M\u1eb7t b\u00edch tr\u01b0\u1ee3t d\u1ec5 l\u1eafp \u0111\u1eb7t v\u00e0 c\u00f3 chi ph\u00ed th\u1ea5p, do \u0111\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong ng\u00e0nh d\u1ea7u kh\u00ed. C\u00e1c m\u1eb7t b\u00edch n\u00e0y ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong h\u1ec7 th\u1ed1ng \u00e1p su\u1ea5t th\u1ea5p. Ch\u00fang c\u0169ng ph\u00f9 h\u1ee3p v\u1edbi nhi\u1ec1u lo\u1ea1i ph\u1ee5 ki\u1ec7n \u1ed1ng kh\u00e1c. T\u1ea5t c\u1ea3 \u0111i\u1ec1u n\u00e0y khi\u1ebfn m\u1eb7t b\u00edch \u1ed1ng tr\u01b0\u1ee3t tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn tuy\u1ec7t v\u1eddi cho h\u1ec7 th\u1ed1ng \u1ed1ng hi\u1ec7n \u0111\u1ea1i c\u1ea7n c\u00e1c ph\u1ee5 ki\u1ec7n \u0111a n\u0103ng.<\/p>\n<h2>SO Flange l\u00e0 g\u00ec?<\/h2>\n<p><figure loading=\"lazy\" class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/hfittings.com\/wp-content\/uploads\/2025\/07\/5670d147-8015-4f0b-81f0-824ea4d8b656.png\" alt=\"N\u1eafp \u0111\u1eady tr\u01b0\u1ee3t tr\u00ean b\u00e0n l\u00e0m vi\u1ec7c\" style=\"display: block; margin-block: 10px;\"><\/figure>\n<p> M\u1ed9t flange SO, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 flange tr\u01b0\u1ee3t, l\u00e0 m\u1ed9t lo\u1ea1i ph\u1ee5 ki\u1ec7n \u1ed1ng. Flange n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 tr\u01b0\u1ee3t d\u1ec5 d\u00e0ng qua \u1ed1ng th\u00e9p, gi\u00fap vi\u1ec7c k\u1ebft n\u1ed1i ch\u00fang tr\u1edf n\u00ean \u0111\u01a1n gi\u1ea3n. \u0110\u01b0\u1eddng k\u00ednh trong c\u1ee7a flange l\u1edbn h\u01a1n m\u1ed9t ch\u00fat so v\u1edbi \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i c\u1ee7a \u1ed1ng. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p b\u1ea1n \u0111\u01b0a \u1ed1ng v\u00e0o l\u1ed7 flange m\u00e0 kh\u00f4ng g\u1eb7p kh\u00f3 kh\u0103n. Flange \u0111\u01b0\u1ee3c c\u1ed1 \u0111\u1ecbnh t\u1ea1i v\u1ecb tr\u00ed b\u1eb1ng h\u00e0n g\u00f3c \u1edf ph\u1ea7n tr\u00ean v\u00e0 ph\u1ea7n d\u01b0\u1edbi c\u1ee7a flange. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra m\u1ed9t k\u1ebft n\u1ed1i ch\u1eafc ch\u1eafn, kh\u00f4ng r\u00f2 r\u1ec9, \u0111i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng trong h\u1ec7 th\u1ed1ng \u1ed1ng d\u1eabn \u00e1p su\u1ea5t th\u1ea5p.<\/p>\n<p>H\u00ecnh d\u1ea1ng c\u1ee7a flange tr\u01b0\u1ee3t gi\u00fap n\u00f3 tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c c\u00f4ng vi\u1ec7c y\u00eau c\u1ea7u l\u1eafp \u0111\u1eb7t nhanh ch\u00f3ng, d\u1ec5 d\u00e0ng v\u00e0 c\u0103n ch\u1ec9nh thu\u1eadn ti\u1ec7n. Lo\u1ea1i flange n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p nh\u01b0 x\u1eed l\u00fd h\u00f3a ch\u1ea5t, x\u1eed l\u00fd n\u01b0\u1edbc v\u00e0 d\u1ea7u kh\u00ed. Flange tr\u01b0\u1ee3t \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi t\u00ednh linh ho\u1ea1t cao v\u00e0 gi\u00fap ti\u1ebft ki\u1ec7m chi ph\u00ed. Ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o t\u1eeb c\u00e1c v\u1eadt li\u1ec7u kh\u00e1c nhau, bao g\u1ed3m th\u00e9p carbon, th\u00e9p kh\u00f4ng g\u1ec9 ho\u1eb7c h\u1ee3p kim. L\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ea7n thi\u1ebft cho c\u00f4ng vi\u1ec7c c\u1ee5 th\u1ec3.<\/p>\n<h3>C\u00e1c t\u00ednh n\u0103ng ch\u00ednh v\u00e0 thi\u1ebft k\u1ebf c\u1ee7a flange SO<\/h3>\n<p>C\u00e1c flange tr\u01b0\u1ee3t c\u00f3 m\u1eb7t flange ph\u1eb3ng v\u00e0 \u0111\u01b0\u1eddng k\u00ednh trong l\u1edbn h\u01a1n, cho ph\u00e9p b\u1ea1n d\u1ec5 d\u00e0ng l\u1eafp \u1ed1ng th\u00e9p v\u00e0o l\u1ed7 flange. Thi\u1ebft k\u1ebf th\u00f4ng minh n\u00e0y gi\u00fap vi\u1ec7c l\u1eafp \u0111\u1eb7t tr\u1edf n\u00ean \u0111\u01a1n gi\u1ea3n v\u00ec \u1ed1ng kh\u00f4ng c\u1ea7n ph\u1ea3i c\u0103n ch\u1ec9nh ch\u00ednh x\u00e1c tr\u01b0\u1edbc khi h\u00e0n. B\u1ea1n c\u00f3 th\u1ec3 t\u00ecm th\u1ea5y c\u00e1c \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i t\u1eeb c\u00e1c k\u00edch th\u01b0\u1edbc ti\u00eau chu\u1ea9n nh\u01b0 2\u201d v\u00e0 4\u201d \u0111\u1ebfn c\u00e1c t\u00f9y ch\u1ecdn \u0111\u1eb7c bi\u1ec7t l\u00ean \u0111\u1ebfn 60\u201d.<\/p>\n<p>H\u1ea7u h\u1ebft c\u00e1c flange tr\u01b0\u1ee3t \u0111\u1ec1u c\u00f3 tr\u1ee5c th\u1ea5p. \u0110i\u1ec1u n\u00e0y gi\u00fap vi\u1ec7c l\u1eafp \u0111\u1eb7t tr\u1edf n\u00ean \u0111\u01a1n gi\u1ea3n v\u00e0 t\u01b0\u01a1ng th\u00edch t\u1ed1t v\u1edbi h\u1ec7 th\u1ed1ng \u1ed1ng d\u1eabn, ph\u1ee5 ki\u1ec7n v\u00e0 h\u1ec7 th\u1ed1ng \u00e1p su\u1ea5t. L\u1ed7 flange \u0111\u1ee7 l\u1edbn \u0111\u1ec3 h\u00e0n m\u01b0\u1ee3t m\u00e0 v\u00e0 gi\u1ea3m thi\u1ec3u nguy c\u01a1 kh\u00f4ng kh\u1edbp trong qu\u00e1 tr\u00ecnh l\u1eafp \u0111\u1eb7t. Khi s\u1eed d\u1ee5ng h\u00e0n g\u00f3c \u1edf \u0111\u00e1y flange, n\u00f3 t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 b\u1ec1n v\u00e0 gi\u00fap ng\u0103n ch\u1eb7n r\u00f2 r\u1ec9 t\u1ea1i m\u1ed1i n\u1ed1i \u1ed1ng.<\/p>\n<p>C\u00e1c flange tr\u01b0\u1ee3t (slip-on flanges) c\u00f3 th\u1ec3 l\u00e0 flange m\u1eb7t n\u1ed5i (raised face flanges), cung c\u1ea5p h\u1ed7 tr\u1ee3 t\u1ed1t h\u01a1n cho gio\u0103ng, ho\u1eb7c l\u00e0 flange RTJ \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho vi\u1ec7c \u0111\u00f3ng k\u00edn \u00e1p su\u1ea5t cao. C\u00e1c flange n\u00e0y ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 trong nhi\u1ec1u lo\u1ea1i h\u1ec7 th\u1ed1ng \u1ed1ng d\u1eabn, do \u0111\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u1ecdi lo\u1ea1i c\u00f4ng tr\u00ecnh th\u01b0\u01a1ng m\u1ea1i v\u00e0 c\u00f4ng nghi\u1ec7p. T\u00ednh linh ho\u1ea1t c\u1ee7a ch\u00fang cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng \u00e1p d\u1ee5ng trong nhi\u1ec1u m\u00f4i tr\u01b0\u1eddng kh\u00e1c nhau.<\/p>\n<h3>C\u00e1c v\u1eadt li\u1ec7u v\u00e0 ti\u00eau chu\u1ea9n th\u00f4ng d\u1ee5ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng t\u1ea1i V\u01b0\u01a1ng qu\u1ed1c Anh<\/h3>\n<p>C\u00e1c flange tr\u01b0\u1ee3t \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb c\u00e1c v\u1eadt li\u1ec7u kh\u00e1c nhau t\u00f9y thu\u1ed9c v\u00e0o y\u00eau c\u1ea7u c\u1ee7a c\u00f4ng vi\u1ec7c. C\u00e1c flange th\u00e9p carbon \u0111\u00e1p \u1ee9ng ti\u00eau chu\u1ea9n ASTM A105 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 th\u1ea5p. Ch\u00fang \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi t\u00ednh kinh t\u1ebf cao m\u00e0 v\u1eabn \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t t\u1ed1t. \u0110\u1ed1i v\u1edbi c\u00e1c c\u00f4ng vi\u1ec7c y\u00eau c\u1ea7u \u0111\u1ed9 b\u1ec1n cao h\u01a1n, ng\u01b0\u1eddi ta s\u1eed d\u1ee5ng flange th\u00e9p kh\u00f4ng g\u1ec9. Ch\u00fang ph\u00f9 h\u1ee3p cho h\u1ec7 th\u1ed1ng \u00e1p su\u1ea5t cao v\u00e0 tu\u00e2n th\u1ee7 quy \u0111\u1ecbnh ASTM A182. C\u00e1c lo\u1ea1i th\u00e9p nh\u01b0 F304 v\u00e0 F316 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 gi\u00fap flange ch\u1ed1ng \u0103n m\u00f2n.<\/p>\n<p>Vi\u1ec7c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u c\u0169ng ph\u1ea3i tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf quan tr\u1ecdng nh\u01b0 ASME B16.5 v\u00e0 Ti\u00eau chu\u1ea9n Anh BS 3293. C\u00e1c ti\u00eau chu\u1ea9n n\u00e0y gi\u00fap \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 s\u1ef1 ph\u00f9 h\u1ee3p trong c\u00e1c h\u1ec7 th\u1ed1ng \u1ed1ng d\u1eabn kh\u00e1c nhau, bao g\u1ed3m c\u1ea3 nh\u1eefng h\u1ec7 th\u1ed1ng s\u1eed d\u1ee5ng ph\u1ee5 ki\u1ec7n n\u1ed1i \u1ed1ng. Ch\u00fang h\u01b0\u1edbng d\u1eabn c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 k\u00edch th\u01b0\u1edbc, m\u1ee9c \u00e1p su\u1ea5t v\u00e0 h\u00ecnh d\u1ea1ng l\u1ed7 flange c\u1ea7n thi\u1ebft cho c\u00e1c ph\u1ee5 ki\u1ec7n.<\/p>\n<p>C\u00e1c flange tr\u01b0\u1ee3t c\u0169ng \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p r\u00e8n v\u00e0 \u0111\u00fac. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p s\u1ea3n xu\u1ea5t n\u00e0y gi\u00fap flange c\u00f3 t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc v\u1eefng ch\u1eafc \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c nhu c\u1ea7u c\u00f4ng nghi\u1ec7p kh\u00e1c nhau. V\u00ec tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n ASME, ASTM v\u00e0 BS, c\u00e1c flange tr\u01b0\u1ee3t ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 trong c\u00e1c m\u00f4i tr\u01b0\u1eddng nh\u01b0 nh\u00e0 m\u00e1y h\u00f3a ch\u1ea5t v\u00e0 khu v\u1ef1c x\u1eed l\u00fd n\u01b0\u1edbc. Ch\u00fang \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 c\u00f3 \u0111\u1ed9 b\u1ec1n cao v\u00e0 \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o \u0111\u1ec3 k\u1ebft n\u1ed1i ch\u1eb7t ch\u1ebd v\u1edbi c\u00e1c ph\u1ee5 ki\u1ec7n kh\u00e1c trong h\u1ec7 th\u1ed1ng \u1ed1ng d\u1eabn.<\/p>\n<p>B\u00e2y gi\u1edd, ch\u00fang ta h\u00e3y ti\u1ebfp t\u1ee5c v\u00e0 xem x\u00e9t c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt chi ti\u1ebft c\u1ee7a ch\u00fang v\u00e0 n\u01a1i b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng ch\u00fang.<\/p>\n<h2>Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u00e0 \u1ee8ng d\u1ee5ng c\u1ee7a Flange SO<\/h2>\n<p><figure loading=\"lazy\" class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/hfittings.com\/wp-content\/uploads\/2025\/07\/73e7b38b-863b-4e33-96f4-b2f31604e538.png\" alt=\"C\u00e1c flange SO trong kho\" style=\"display: block; margin-block: 10px;\"><\/figure>\n<p> C\u00e1c m\u1eb7t b\u00edch SO c\u00f3 c\u00e1c m\u1ee9c \u00e1p su\u1ea5t kh\u00e1c nhau. C\u00e1c m\u1ee9c \u00e1p su\u1ea5t n\u00e0y b\u1eaft \u0111\u1ea7u t\u1eeb Class 150 v\u00e0 l\u00ean \u0111\u1ebfn Class 2500. C\u00e1c m\u1eb7t b\u00edch tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n ph\u1ed5 bi\u1ebfn nh\u01b0 ASTM v\u00e0 ASME cho h\u1ec7 th\u1ed1ng \u00e1p su\u1ea5t. \u0110\u01b0\u1eddng k\u00ednh ngo\u00e0i c\u1ee7a ch\u00fang dao \u0111\u1ed9ng t\u1eeb \u00bd\u201d \u0111\u1ebfn 24\u201d. \u0110\u1ed1i v\u1edbi m\u1ed9t s\u1ed1 \u0111\u01b0\u1eddng \u1ed1ng, b\u1ea1n c\u00f3 th\u1ec3 c\u00f3 \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i l\u00ean \u0111\u1ebfn 60\u201d n\u1ebfu c\u1ea7n thi\u1ebft. C\u00e1c t\u00ednh n\u0103ng n\u00e0y gi\u00fap c\u1ea3i thi\u1ec7n c\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 h\u1ecdc \u0111\u1ec3 mang l\u1ea1i \u0111\u1ed9 b\u1ec1n mong mu\u1ed1n cho \u0111\u01b0\u1eddng \u1ed1ng v\u00e0 \u1ee9ng d\u1ee5ng v\u1eadn chuy\u1ec3n.<\/p>\n<p>Ng\u01b0\u1eddi ta th\u01b0\u1eddng s\u1eed d\u1ee5ng c\u00e1c flange tr\u01b0\u1ee3t trong c\u00e1c m\u00f4i tr\u01b0\u1eddng \u00e1p su\u1ea5t th\u1ea5p. B\u1ea1n c\u00f3 th\u1ec3 t\u00ecm th\u1ea5y ch\u00fang trong c\u00e1c h\u1ec7 th\u1ed1ng x\u1eed l\u00fd n\u01b0\u1edbc, nh\u00e0 m\u00e1y ch\u1ebf bi\u1ebfn h\u00f3a ch\u1ea5t v\u00e0 \u0111\u01b0\u1eddng \u1ed1ng v\u1eadn chuy\u1ec3n. Thi\u1ebft k\u1ebf \u0111\u01a1n gi\u1ea3n gi\u00fap c\u00e1c flange n\u00e0y tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn ph\u00f9 h\u1ee3p cho nh\u1eefng ai mu\u1ed1n c\u00f3 k\u1ebft n\u1ed1i ch\u1eafc ch\u1eafn v\u00e0 \u0111\u00e1ng tin c\u1eady \u0111\u1ed3ng th\u1eddi mu\u1ed1n ti\u1ebft ki\u1ec7m chi ph\u00ed.<\/p>\n<h3>C\u00e1c \u1ee9ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh trong m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p v\u00e0 th\u01b0\u01a1ng m\u1ea1i<\/h3>\n<p>C\u00e1c flange tr\u01b0\u1ee3t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c th\u01b0\u01a1ng m\u1ea1i v\u00e0 c\u00f4ng nghi\u1ec7p v\u00ec t\u00ednh ti\u1ec7n l\u1ee3i c\u1ee7a ch\u00fang. Nhi\u1ec1u ng\u01b0\u1eddi trong ng\u00e0nh l\u1ef1a ch\u1ecdn ch\u00fang khi c\u1ea7n k\u1ebft n\u1ed1i \u0111\u01b0\u1eddng \u1ed1ng m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed. Thi\u1ebft k\u1ebf \u0111\u01a1n gi\u1ea3n c\u1ee7a c\u00e1c flange n\u00e0y gi\u00fap gi\u1ea3m thi\u1ec3u c\u00f4ng s\u1ee9c c\u1ea7n thi\u1ebft \u0111\u1ec3 l\u1eafp \u0111\u1eb7t, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c d\u1ef1 \u00e1n quy m\u00f4 l\u1edbn.<\/p>\n<ul>\n<li>Gi\u1ea3m chi ph\u00ed l\u1eafp \u0111\u1eb7t b\u1eb1ng c\u00e1ch r\u00fat ng\u1eafn th\u1eddi gian h\u00e0n v\u00e0 gi\u1ea3m \u0111\u1ed9 ph\u1ee9c t\u1ea1p trong vi\u1ec7c c\u0103n ch\u1ec9nh nh\u1edd c\u00e1c k\u1ef9 thu\u1eadt \u1ed1ng ti\u00ean ti\u1ebfn.<\/li>\n<li>Ph\u00f9 h\u1ee3p cho c\u00e1c c\u01a1 s\u1edf x\u1eed l\u00fd n\u01b0\u1edbc n\u01a1i \u0111\u1ed9 b\u1ec1n \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u \u00e1p su\u1ea5t v\u1eeba ph\u1ea3i.<\/li>\n<li>Gi\u1ea3m chi ph\u00ed l\u1eafp \u0111\u1eb7t b\u1eb1ng c\u00e1ch r\u00fat ng\u1eafn th\u1eddi gian h\u00e0n v\u00e0 gi\u1ea3m \u0111\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a vi\u1ec7c c\u0103n ch\u1ec9nh.<\/li>\n<li>Cung c\u1ea5p d\u1ecbch v\u1ee5 cho c\u00e1c nh\u00e0 m\u00e1y h\u00f3a ch\u1ea5t trong vi\u1ec7c v\u1eadn chuy\u1ec3n ch\u1ea5t l\u1ecfng \u00e1p su\u1ea5t th\u1ea5p v\u00e0 trung b\u00ecnh qua h\u1ec7 th\u1ed1ng \u1ed1ng d\u1eabn.<\/li>\n<li>N\u00e2ng cao \u0111\u1ed9 b\u1ec1n c\u1ee7a h\u1ec7 th\u1ed1ng \u1ed1ng d\u1eabn d\u1ea7u kh\u00ed, \u0111\u00e1p \u1ee9ng c\u00e1c thi\u1ebft k\u1ebf ch\u1ed1ng \u0103n m\u00f2n khi c\u1ea7n thi\u1ebft.<\/li>\n<\/ul>\n<p>N\u1ebfu b\u1ea1n l\u00e0m vi\u1ec7c v\u1edbi c\u00e1c \u0111\u01b0\u1eddng \u1ed1ng c\u1ea7n \u00e1p su\u1ea5t th\u1ea5p ho\u1eb7c \u0111\u00f4i khi c\u1ea7n \u0111\u1ed9 b\u1ec1n cao, c\u00e1c flange tr\u01b0\u1ee3t l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1t v\u00e0 \u0111\u00e1ng tin c\u1eady cho b\u1ea1n. T\u00f3m l\u1ea1i, c\u00e1c flange tr\u01b0\u1ee3t ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 v\u00e0 gi\u00fap c\u00f4ng vi\u1ec7c l\u1eafp \u0111\u1eb7t \u1ed1ng tr\u1edf n\u00ean d\u1ec5 d\u00e0ng h\u01a1n cho nhi\u1ec1u ng\u01b0\u1eddi v\u00e0 doanh nghi\u1ec7p.<\/p>\n<h2>K\u1ebft lu\u1eadn<\/h2>\n<p>T\u00f3m l\u1ea1i, vi\u1ec7c hi\u1ec3u r\u00f5 v\u1ec1 c\u00e1c flange SO l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi b\u1ea5t k\u1ef3 ai l\u00e0m vi\u1ec7c v\u1edbi h\u1ec7 th\u1ed1ng c\u00f4ng nghi\u1ec7p v\u00e0 th\u01b0\u01a1ng m\u1ea1i. Thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t c\u1ee7a c\u00e1c flange n\u00e0y mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch v\u00e0 gi\u00fap h\u1ec7 th\u1ed1ng ho\u1ea1t \u0111\u1ed9ng tr\u01a1n tru. Nhi\u1ec1u ng\u01b0\u1eddi l\u1ef1a ch\u1ecdn ch\u00fang cho c\u00e1c c\u00f4ng vi\u1ec7c l\u1eafp \u0111\u1eb7t \u1ed1ng d\u1eabn kh\u00e1c nhau. C\u00e1c chi ti\u1ebft v\u00e0 \u01b0u \u0111i\u1ec3m \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u1ec1 c\u1eadp cho th\u1ea5y t\u1ea1i sao ch\u00fang quan tr\u1ecdng trong vi\u1ec7c t\u1ea1o ra c\u00e1c k\u1ebft n\u1ed1i \u1ed1ng an to\u00e0n v\u00e0 \u1ed5n \u0111\u1ecbnh. L\u1ef1a ch\u1ecdn \u0111\u00fang lo\u1ea1i flange SO s\u1ebd c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t ho\u1ea1t \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng \u1ed1ng d\u1eabn c\u1ee7a b\u1ea1n. N\u00f3 c\u0169ng gi\u00fap b\u1ea1n tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh do ng\u00e0nh c\u00f4ng nghi\u1ec7p \u0111\u1eb7t ra. N\u1ebfu b\u1ea1n c\u00f3 th\u1eafc m\u1eafc v\u1ec1 flange SO ho\u1eb7c c\u1ea7n h\u1ed7 tr\u1ee3 \u0111\u1ec3 ch\u1ecdn lo\u1ea1i ph\u00f9 h\u1ee3p nh\u1ea5t cho c\u00f4ng vi\u1ec7c c\u1ee7a m\u00ecnh, b\u1ea1n c\u00f3 th\u1ec3 li\u00ean h\u1ec7 v\u00e0 nh\u1eadn t\u01b0 v\u1ea5n t\u1eeb c\u00e1c chuy\u00ean gia. S\u1eed d\u1ee5ng th\u00f4ng tin ch\u00ednh x\u00e1c s\u1ebd gi\u00fap flange v\u00e0 h\u1ec7 th\u1ed1ng \u1ed1ng d\u1eabn c\u1ee7a b\u1ea1n ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n<h3>M\u1eb7t b\u00edch tr\u01b0\u1ee3t c\u00f3 m\u1eb7t tr\u00ean nh\u00f4 cao<\/h3>\n<p>M\u1eb7t b\u00edch c\u00f3 m\u1eb7t nh\u00f4 cao l\u00e0 lo\u1ea1i m\u1eb7t b\u00edch c\u00f3 ph\u1ea7n nh\u00f4 ra kh\u1ecfi m\u1eb7t b\u00edch. Ph\u1ea7n n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 gi\u1eef ch\u1eb7t gio\u0103ng v\u00e0 gi\u1eef n\u00f3 \u1edf v\u1ecb tr\u00ed c\u1ed1 \u0111\u1ecbnh. Nh\u1edd \u0111\u00f3, m\u1eb7t b\u00edch d\u1ec5 s\u1eed d\u1ee5ng v\u00e0 t\u1ea1o ra m\u1ed9t l\u1edbp k\u00edn ch\u1eb7t ch\u1ebd. \u0110i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c \u0111\u01b0\u1eddng \u1ed1ng c\u1ea7n \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh khi c\u00f3 s\u1ef1 thay \u0111\u1ed5i \u00e1p su\u1ea5t. B\u1ea1n s\u1ebd th\u1ea5y m\u1eb7t b\u00edch c\u00f3 m\u1eb7t nh\u00f4 cao \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong h\u1ec7 th\u1ed1ng n\u01b0\u1edbc v\u00e0 t\u1ea1i c\u00e1c c\u01a1 s\u1edf nh\u01b0 nh\u00e0 m\u00e1y l\u1ecdc d\u1ea7u.<\/p>\n<p>C\u00e1c m\u1eb7t b\u00edch RF gi\u00fap d\u1ec5 d\u00e0ng \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 k\u00edn t\u1ed1t. C\u00e1ch r\u00e3nh gio\u0103ng n\u1eb1m tr\u00ean b\u1ec1 m\u1eb7t m\u1eb7t b\u00edch g\u00f3p ph\u1ea7n v\u00e0o \u0111i\u1ec1u n\u00e0y. C\u00e1c m\u1eb7t b\u00edch n\u00e0y tu\u00e2n th\u1ee7 c\u1ea3 ti\u00eau chu\u1ea9n ASTM v\u00e0 h\u01b0\u1edbng d\u1eabn ASME. \u0110i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 ch\u00fang ph\u00f9 h\u1ee3p cho h\u1ec7 th\u1ed1ng \u1ed1ng th\u00e9p ch\u1ecbu \u00e1p l\u1ef1c v\u00e0 c\u00f3 tu\u1ed5i th\u1ecd cao. Khi \u00e1p su\u1ea5t t\u0103ng cao, b\u1ec1 m\u1eb7t nh\u00f4 l\u00ean c\u1ee7a m\u1eb7t b\u00edch s\u1ebd cao h\u01a1n. Chi\u1ec1u cao th\u00eam n\u00e0y gi\u00fap m\u1eb7t b\u00edch ch\u1ecbu \u0111\u01b0\u1ee3c \u00e1p l\u1ef1c l\u1edbn h\u01a1n.<\/p>\n<p>B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c lo\u1ea1i flange n\u00e0y trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau, bao g\u1ed3m c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p c\u00f3 t\u1ea1i trupply. Ch\u00fang d\u1ec5 d\u00e0ng l\u1eafp \u0111\u1eb7t v\u00e0o c\u00e1c lo\u1ea1i \u0111\u01b0\u1eddng \u1ed1ng kh\u00e1c nhau. T\u1eeb \u0111\u01b0\u1eddng \u1ed1ng th\u00e9p \u0111\u1ebfn v\u1eadn chuy\u1ec3n h\u00f3a ch\u1ea5t, c\u00e1c flange RF slip-on gi\u00fap ng\u0103n ch\u1eb7n r\u00f2 r\u1ec9. Ch\u00fang c\u0169ng gi\u00fap c\u00f4ng vi\u1ec7c tr\u00ean \u0111\u01b0\u1eddng \u1ed1ng tr\u1edf n\u00ean nhanh ch\u00f3ng v\u00e0 hi\u1ec7u qu\u1ea3 h\u01a1n. C\u00e1c flange n\u00e0y l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o h\u1ec7 th\u1ed1ng \u00e1p su\u1ea5t ho\u1ea1t \u0111\u1ed9ng t\u1ed1t v\u00e0 c\u00f3 tu\u1ed5i th\u1ecd cao.<\/p>\n<h3>RTJ N\u1eafp \u1ed1ng tr\u01b0\u1ee3t<\/h3>\n<p>C\u00e1c m\u1eb7t b\u00edch \u1ed1ng tr\u01b0\u1ee3t RTJ (Ring Type Joint) c\u00f3 m\u1ed9t r\u00e3nh \u0111\u1eb7c bi\u1ec7t \u1edf khu v\u1ef1c m\u1eb7t b\u00edch nh\u00f4 cao. R\u00e3nh n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 l\u1eafp v\u00f2ng \u0111\u1ec7m. V\u1edbi thi\u1ebft k\u1ebf n\u00e0y, c\u00e1c m\u1eb7t b\u00edch n\u00e0y cung c\u1ea5p kh\u1ea3 n\u0103ng k\u00edn kh\u00edt t\u1ed1t h\u01a1n, do \u0111\u00f3 ph\u00f9 h\u1ee3p \u0111\u1ec3 s\u1eed d\u1ee5ng trong c\u00e1c m\u00f4i tr\u01b0\u1eddng \u00e1p su\u1ea5t cao nh\u01b0 c\u00f4ng nghi\u1ec7p d\u1ea7u kh\u00ed.<\/p>\n<p>C\u00e1c m\u1eb7t b\u00edch RTJ kh\u00f4ng gi\u1ed1ng nh\u01b0 c\u00e1c m\u1eb7t b\u00edch RF. C\u00e1c m\u1eb7t b\u00edch RTJ c\u00f3 th\u1ec3 duy tr\u00ec \u0111\u1ed9 k\u00edn ch\u1eb7t ngay c\u1ea3 khi ch\u1ecbu l\u1ef1c c\u0103ng l\u1edbn. \u0110i\u1ec1u n\u00e0y gi\u00fap \u0111\u1ea3m b\u1ea3o k\u1ebft n\u1ed1i v\u1eabn ch\u1eb7t ch\u1ebd v\u00e0 an to\u00e0n trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t. Ch\u00fang \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t theo ti\u00eau chu\u1ea9n ASTM v\u00e0 ASME, do \u0111\u00f3 b\u1ea1n c\u00f3 th\u1ec3 tin t\u01b0\u1edfng v\u00e0o \u0111\u1ed9 b\u1ec1n v\u00e0 t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a ch\u00fang khi s\u1eed d\u1ee5ng c\u00e1c ph\u1ee5 ki\u1ec7n \u1ed1ng th\u00e9p.<\/p>\n<p>Ng\u01b0\u1eddi ta s\u1eed d\u1ee5ng c\u00e1c lo\u1ea1i flange n\u00e0y trong c\u00e1c \u0111\u01b0\u1eddng \u1ed1ng h\u00f3a ch\u1ea5t \u00e1p su\u1ea5t cao, nh\u00e0 m\u00e1y l\u1ecdc d\u1ea7u v\u00e0 h\u1ec7 th\u1ed1ng v\u1eadn chuy\u1ec3n. Vi\u1ec7c c\u00f3 m\u1ed9t l\u1edbp seal \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u00e1ng tin c\u1eady l\u00e0 r\u1ea5t quan tr\u1ecdng trong nh\u1eefng m\u00f4i tr\u01b0\u1eddng n\u00e0y. C\u00e1c flange \u1ed1ng RTJ slip-on k\u1ebft h\u1ee3p thi\u1ebft k\u1ebf c\u1ea9n th\u1eadn, \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 tin c\u1eady. B\u1ea1n c\u00f3 th\u1ec3 mong \u0111\u1ee3i hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh, \u0111\u1ed9 b\u1ec1n cao v\u00e0 hi\u1ec7u qu\u1ea3 khi c\u00e1c ph\u1ee5 ki\u1ec7n n\u00e0y \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t tr\u00ean c\u00e1c \u0111\u01b0\u1eddng \u1ed1ng c\u1ea7n ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong th\u1eddi gian d\u00e0i.<\/p>\n<h2>L\u1ee3i \u00edch khi l\u1ef1a ch\u1ecdn Flange tr\u01b0\u1ee3t<\/h2>\n<p>Chi ph\u00ed th\u1ea5p h\u01a1n khi s\u1eed d\u1ee5ng flange tr\u01b0\u1ee3t, v\u00e0 \u0111\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng l\u00fd do t\u1ed1t nh\u1ea5t \u0111\u1ec3 l\u1ef1a ch\u1ecdn n\u00f3. C\u00e1ch l\u1eafp \u0111\u1eb7t \u0111\u01a1n gi\u1ea3n gi\u00fap b\u1ea1n ti\u1ebft ki\u1ec7m chi ph\u00ed v\u00e0 v\u1eadt li\u1ec7u. \u0110i\u1ec1u n\u00e0y khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn t\u1ed1t \u0111\u1ec3 s\u1eed d\u1ee5ng trong nhi\u1ec1u h\u1ec7 th\u1ed1ng \u1ed1ng d\u1eabn. Flange tr\u01b0\u1ee3t c\u00f3 \u0111\u1ed9 b\u1ec1n cao v\u00e0 t\u01b0\u01a1ng th\u00edch t\u1ed1t v\u1edbi nhi\u1ec1u lo\u1ea1i ph\u1ee5 ki\u1ec7n \u1ed1ng kh\u00e1c nhau. C\u00e1c t\u00ednh n\u0103ng c\u01a1 h\u1ecdc n\u00e0y gi\u00fap n\u00f3 tr\u1edf n\u00ean \u01b0u vi\u1ec7t h\u01a1n. Thi\u1ebft k\u1ebf c\u1ee7a n\u00f3 c\u0169ng gi\u00fap b\u1ea1n c\u0103n ch\u1ec9nh d\u1ec5 d\u00e0ng khi h\u00e0n, \u0111\u1ea3m b\u1ea3o k\u1ebft n\u1ed1i an to\u00e0n v\u00e0 ch\u1eafc ch\u1eafn. Vi\u1ec7c s\u1eed d\u1ee5ng \u0111\u01a1n gi\u1ea3n n\u00e0y c\u0169ng gi\u00fap ti\u1ebft ki\u1ec7m th\u1eddi gian. B\u1ea1n s\u1ebd t\u1eadn d\u1ee5ng t\u1ed1i \u0111a thi\u1ebft k\u1ebf flange tr\u01b0\u1ee3t khi s\u1eed d\u1ee5ng n\u00f3 trong m\u00f4i tr\u01b0\u1eddng c\u00f3 nhi\u1ec7t \u0111\u1ed9 trung b\u00ecnh v\u00e0 \u00e1p su\u1ea5t th\u1ea5p. \u1ede \u0111\u00e2y, n\u00f3 mang l\u1ea1i \u0111\u1ed9 b\u1ec1n cao v\u00e0 duy tr\u00ec ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh trong th\u1eddi gian d\u00e0i.<\/p>\n<h3>Flange tr\u01b0\u1ee3t so v\u1edbi flange h\u00e0n c\u1ed5<\/h3>\n<p>Xem x\u00e9t c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c lo\u1ea1i flange tr\u01b0\u1ee3t (slip-on flanges) v\u00e0 flange h\u00e0n c\u1ed5 (weld-neck flanges) c\u00f3 th\u1ec3 gi\u00fap b\u1ea1n l\u1ef1a ch\u1ecdn lo\u1ea1i ph\u00f9 h\u1ee3p nh\u1ea5t cho c\u00e1c c\u00f4ng tr\u00ecnh \u1ed1ng d\u1eabn c\u1ee7a m\u00ecnh. Flange tr\u01b0\u1ee3t ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong c\u00e1c h\u1ec7 th\u1ed1ng \u00e1p su\u1ea5t c\u00f3 \u00e1p su\u1ea5t th\u1ea5p. Ch\u00fang c\u00f3 thi\u1ebft k\u1ebf \u0111\u01a1n gi\u1ea3n, do \u0111\u00f3 kh\u00f4ng y\u00eau c\u1ea7u nhi\u1ec1u c\u00f4ng \u0111o\u1ea1n h\u00e0n. \u0110i\u1ec1u n\u00e0y gi\u00fap gi\u1ea3m chi ph\u00ed l\u1eafp \u0111\u1eb7t.<\/p>\n<p>Nh\u01b0ng c\u00e1c flange c\u1ed5 h\u00e0n, th\u01b0\u1eddng \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi ch\u1ea5t l\u01b0\u1ee3ng cao, \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t v\u1edbi ph\u1ea7n c\u1ed5 d\u00e0i h\u01a1n. Ch\u00fang l\u00e0 l\u1ef1a ch\u1ecdn ph\u00f9 h\u1ee3p cho h\u1ec7 th\u1ed1ng \u1ed1ng d\u1eabn \u00e1p su\u1ea5t cao. C\u00e1c flange n\u00e0y cung c\u1ea5p \u0111\u1ed9 b\u1ec1n cao h\u01a1n v\u00e0 c\u00f3 tu\u1ed5i th\u1ecd l\u00e2u d\u00e0i. Quy tr\u00ecnh s\u1ea3n xu\u1ea5t flange c\u1ed5 h\u00e0n, t\u01b0\u01a1ng t\u1ef1 nh\u01b0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p t\u1ea1i Trung Qu\u1ed1c, cho ph\u00e9p \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 ch\u00ednh x\u00e1c cao h\u01a1n khi h\u00e0n, t\u1eeb \u0111\u00f3 gi\u00fap h\u1ec7 th\u1ed1ng \u1ed1ng d\u1eabn ho\u1ea1t \u0111\u1ed9ng b\u1ec1n b\u1ec9 h\u01a1n. Do nh\u1eefng l\u00fd do n\u00e0y, nhi\u1ec1u ng\u01b0\u1eddi s\u1eed d\u1ee5ng flange c\u1ed5 h\u00e0n trong c\u00e1c c\u00f4ng tr\u00ecnh quan tr\u1ecdng \u0111\u00f2i h\u1ecfi c\u00e1c b\u1ed9 ph\u1eadn c\u00f3 \u0111\u1ed9 b\u1ec1n cao.<\/p>\n<h2>Ti\u00eau chu\u1ea9n v\u00e0 c\u1ea5p \u0111\u1ed9 c\u1ee7a c\u00e1c m\u1eb7t b\u00edch \u1ed1ng tr\u01b0\u1ee3t<\/h2>\n<p>Ti\u00eau chu\u1ea9n v\u00e0 c\u1ea5p \u0111\u1ed9 cho c\u00e1c m\u1eb7t b\u00edch \u1ed1ng tr\u01b0\u1ee3t l\u00e0 r\u1ea5t quan tr\u1ecdng trong vi\u1ec7c s\u1eed d\u1ee5ng ch\u00fang trong c\u00e1c h\u1ec7 th\u1ed1ng \u00e1p su\u1ea5t kh\u00e1c nhau. Tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n ASME v\u00e0 ASTM gi\u00fap \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c m\u1eb7t b\u00edch \u1ed1ng n\u00e0y \u0111\u00e1p \u1ee9ng c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc nh\u1ea5t \u0111\u1ecbnh v\u00e0 \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t theo quy tr\u00ecnh \u0111\u00fang \u0111\u1eafn. Th\u00e9p carbon v\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 l\u00e0 c\u00e1c v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t. Nh\u1eefng v\u1eadt li\u1ec7u n\u00e0y gi\u00fap t\u0103ng \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ea3m b\u1ea3o h\u1ec7 th\u1ed1ng \u1ed1ng ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3. Khi hi\u1ec3u r\u00f5 c\u00e1c ph\u00e2n lo\u1ea1i kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i v\u00e0 lo\u1ea1i m\u1eb7t flange, b\u1ea1n c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn flange ph\u00f9 h\u1ee3p nh\u1ea5t cho t\u1eebng c\u00f4ng vi\u1ec7c. \u0110i\u1ec1u n\u00e0y mang l\u1ea1i hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u cho nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nhau.<\/p>\n<h3>K\u00edch th\u01b0\u1edbc m\u1eb7t b\u00edch tr\u01b0\u1ee3t<\/h3>\n<p>K\u00edch th\u01b0\u1edbc c\u1ee7a c\u00e1c m\u1eb7t b\u00edch tr\u01b0\u1ee3t c\u00f3 th\u1ec3 kh\u00e1c nhau t\u00f9y thu\u1ed9c v\u00e0o c\u00e1c ti\u00eau chu\u1ea9n nh\u01b0 ASME v\u00e0 ASTM. M\u1eb7t b\u00edch th\u01b0\u1eddng c\u00f3 ph\u1ea7n nh\u00f4 l\u00ean. L\u1ed7 khoan \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i c\u1ee7a \u1ed1ng. \u0110i\u1ec1u n\u00e0y gi\u00fap \u0111\u1ea3m b\u1ea3o s\u1ef1 kh\u00edt khao t\u1ed1t. C\u00e1c \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i th\u00f4ng d\u1ee5ng dao \u0111\u1ed9ng t\u1eeb 1 inch \u0111\u1ebfn v\u00e0i inch \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c nhu c\u1ea7u kh\u00e1c nhau c\u1ee7a h\u1ec7 th\u1ed1ng \u1ed1ng d\u1eabn. Tr\u1ee5c c\u1ee7a flange \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 c\u00f3 th\u1ec3 c\u0103n ch\u1ec9nh ch\u00ednh x\u00e1c v\u00e0 l\u1eafp \u0111\u1eb7t d\u1ec5 d\u00e0ng. Vi\u1ec7c x\u00e1c \u0111\u1ecbnh \u0111\u00fang k\u00edch th\u01b0\u1edbc v\u00e0 lo\u1ea1i flange l\u00e0 r\u1ea5t quan tr\u1ecdng. \u0110i\u1ec1u n\u00e0y gi\u00fap \u0111\u1ea3m b\u1ea3o t\u1ea5t c\u1ea3 c\u00e1c b\u1ed9 ph\u1eadn trong h\u1ec7 th\u1ed1ng \u1ed1ng d\u1eabn ho\u1ea1t \u0111\u1ed9ng h\u00e0i h\u00f2a v\u00e0 duy tr\u00ec \u00e1p su\u1ea5t \u0111\u00fang. Ngo\u00e0i ra, n\u00f3 c\u00f2n gi\u00fap gi\u1ea3m chi ph\u00ed l\u1eafp \u0111\u1eb7t.<\/p>\n<h3>Th\u1ebb: ASTM A105 ASTM A182 Flange th\u00e9p carbon Flange Flange tr\u01b0\u1ee3t<\/h3>\n<p>Ti\u00eau chu\u1ea9n ASTM A105 v\u00e0 A182 l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c m\u1eb7t b\u00edch th\u00e9p carbon v\u00e0 m\u1eb7t b\u00edch th\u00e9p kh\u00f4ng g\u1ec9 d\u1ea1ng tr\u01b0\u1ee3t. C\u00e1c ti\u00eau chu\u1ea9n ASTM n\u00e0y gi\u00fap \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c m\u1eb7t b\u00edch ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong h\u1ec7 th\u1ed1ng \u00e1p su\u1ea5t. Ch\u00fang c\u0169ng gi\u00fap c\u00e1c m\u1eb7t b\u00edch c\u00f3 t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc v\u00e0 \u0111\u1ed9 b\u1ec1n t\u1ed1t.<\/p>\n<p>Khi l\u1ef1a ch\u1ecdn ph\u1ee5 ki\u1ec7n \u1ed1ng cho b\u1ea5t k\u1ef3 c\u00f4ng tr\u00ecnh \u1ed1ng d\u1eabn n\u00e0o, b\u1ea1n n\u00ean xem x\u00e9t c\u00e1ch m\u00e0 flange tr\u01b0\u1ee3t s\u1ebd ph\u00f9 h\u1ee3p v\u1edbi to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng. S\u1eed d\u1ee5ng \u0111\u00fang ti\u00eau chu\u1ea9n k\u1ef9 thu\u1eadt cho ph\u1ee5 ki\u1ec7n v\u00e0 flange c\u00f3 th\u1ec3 mang l\u1ea1i l\u1ee3i \u00edch cho b\u1ea1n. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 gi\u00fap r\u00fat ng\u1eafn th\u1eddi gian l\u1eafp \u0111\u1eb7t v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed. B\u1ea1n kh\u00f4ng c\u1ea7n ph\u1ea3i chi ti\u00eau nhi\u1ec1u cho vi\u1ec7c h\u00e0n v\u00e0 b\u1ea3o tr\u00ec h\u1ec7 th\u1ed1ng. Cu\u1ed1i c\u00f9ng, \u0111i\u1ec1u n\u00e0y gi\u00fap h\u1ec7 th\u1ed1ng \u1ed1ng d\u1eabn ho\u1eb7c h\u1ec7 th\u1ed1ng \u00e1p l\u1ef1c ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 h\u01a1n v\u00e0 c\u00f3 tu\u1ed5i th\u1ecd l\u00e2u h\u01a1n.<\/p>\n<h2>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n<h3>SO trong SO flange c\u00f3 ngh\u0129a l\u00e0 g\u00ec?<\/h3>\n<p>Thu\u1eadt ng\u1eef \u201cSO\u201d trong \u201cSO flange\u201d c\u00f3 ngh\u0129a l\u00e0 \u201cSlip On\u201d. Lo\u1ea1i flange n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 tr\u01b0\u1ee3t qua \u0111\u1ea7u \u1ed1ng. N\u00f3 gi\u00fap vi\u1ec7c c\u0103n ch\u1ec9nh v\u00e0 h\u00e0n tr\u1edf n\u00ean d\u1ec5 d\u00e0ng. Ng\u01b0\u1eddi ta th\u01b0\u1eddng s\u1eed d\u1ee5ng lo\u1ea1i flange n\u00e0y trong nhi\u1ec1u h\u1ec7 th\u1ed1ng \u1ed1ng d\u1eabn v\u00ec n\u00f3 \u0111\u01a1n gi\u1ea3n \u0111\u1ec3 s\u1eed d\u1ee5ng v\u00e0 kh\u00f4ng t\u1ed1n nhi\u1ec1u chi ph\u00ed.<\/p>\n<h3>S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa flange tr\u01b0\u1ee3t v\u00e0 flange h\u00e0n c\u1ed5 l\u00e0 g\u00ec?<\/h3>\n<p>Flange tr\u01b0\u1ee3t (slip-on flange) d\u1ec5 l\u1eafp \u0111\u1eb7t v\u00ec kh\u00f4ng y\u00eau c\u1ea7u nhi\u1ec1u c\u00f4ng \u0111o\u1ea1n gia c\u00f4ng m\u00e1y. Ng\u01b0\u1ee3c l\u1ea1i, flange h\u00e0n c\u1ed5 (weld neck flange) c\u00f3 \u0111\u1ed9 b\u1ec1n cao h\u01a1n v\u00e0 ch\u1ecbu \u0111\u01b0\u1ee3c \u00e1p l\u1ef1c t\u1ed1t h\u01a1n. L\u1ef1a ch\u1ecdn lo\u1ea1i flange n\u00e0o s\u1ebd ph\u1ee5 thu\u1ed9c v\u00e0o y\u00eau c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a c\u00f4ng vi\u1ec7c. Flange tr\u01b0\u1ee3t ho\u1ea1t \u0111\u1ed9ng t\u1ed1t nh\u1ea5t trong \u0111i\u1ec1u ki\u1ec7n \u00e1p su\u1ea5t th\u1ea5p. Flange h\u00e0n c\u1ed5 ph\u00f9 h\u1ee3p h\u01a1n cho h\u1ec7 th\u1ed1ng \u00e1p su\u1ea5t cao. C\u1ea3 hai lo\u1ea1i flange \u0111\u1ec1u c\u00f3 \u1ee9ng d\u1ee5ng ri\u00eang trong c\u00e1c t\u00ecnh hu\u1ed1ng l\u00e0m vi\u1ec7c kh\u00e1c nhau.<\/p>\n<h3>C\u00e1c m\u1ee9c \u00e1p su\u1ea5t n\u00e0o c\u00f3 s\u1eb5n cho c\u00e1c m\u1eb7t b\u00edch SO?<\/h3>\n<p>C\u00e1c m\u1eb7t b\u00edch tr\u01b0\u1ee3t th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t theo ti\u00eau chu\u1ea9n \u00e1p su\u1ea5t theo ANSI\/ASME B16.5. C\u00e1c m\u1ee9c \u00e1p su\u1ea5t n\u00e0y dao \u0111\u1ed9ng t\u1eeb PN 150 \u0111\u1ebfn 2500 psi. M\u1ed7i m\u1ee9c \u00e1p su\u1ea5t \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho m\u1ed9t nhi\u1ec7t \u0111\u1ed9 c\u1ee5 th\u1ec3 v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi \u0111i\u1ec1u ki\u1ec7n ho\u1ea1t \u0111\u1ed9ng. \u0110i\u1ec1u n\u00e0y gi\u00fap c\u00e1c m\u1eb7t b\u00edch ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 v\u00e0 \u0111\u1ea3m b\u1ea3o an to\u00e0n cho m\u1ecdi \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p.<\/p>\n<h3>C\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c m\u1eb7t b\u00edch SO cho c\u00e1c \u1ee9ng d\u1ee5ng nhi\u1ec7t \u0111\u1ed9 cao kh\u00f4ng?<\/h3>\n<p>\u0110\u00fang, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng flange tr\u01b0\u1ee3t cho c\u00e1c v\u1ecb tr\u00ed c\u00f3 nhi\u1ec7t \u0111\u1ed9 cao, nh\u01b0ng c\u1ea7n ph\u1ea3i bi\u1ebft ch\u1ecdn v\u1eadt li\u1ec7u v\u00e0 m\u1ee9c \u00e1p su\u1ea5t ph\u00f9 h\u1ee3p. Vi\u1ec7c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p, nh\u01b0 ASTM A182 ho\u1eb7c th\u00e9p carbon, l\u00e0 r\u1ea5t quan tr\u1ecdng. \u0110i\u1ec1u n\u00e0y gi\u00fap flange duy tr\u00ec \u0111\u1ed9 b\u1ec1n khi nhi\u1ec7t \u0111\u1ed9 t\u0103ng cao. B\u1ea1n n\u00ean lu\u00f4n ki\u1ec3m tra c\u00e1c ti\u00eau chu\u1ea9n ph\u00f9 h\u1ee3p tr\u01b0\u1edbc khi s\u1eed d\u1ee5ng ch\u00fang.<\/p>\n<h3>C\u00e1c m\u1eb7t b\u00edch SO c\u00f3 ph\u00f9 h\u1ee3p \u0111\u1ec3 s\u1eed d\u1ee5ng v\u1edbi h\u1ec7 th\u1ed1ng \u1ed1ng th\u00e9p kh\u00f4ng g\u1ec9 kh\u00f4ng?<\/h3>\n<p>V\u00ec v\u1eady, c\u00e1c m\u1eb7t b\u00edch ho\u1ea1t \u0111\u1ed9ng t\u1ed1t v\u1edbi h\u1ec7 th\u1ed1ng \u1ed1ng th\u00e9p kh\u00f4ng g\u1ec9. Ch\u00fang t\u1ea1o ra k\u1ebft n\u1ed1i ch\u1eafc ch\u1eafn c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c s\u1ef1 gi\u00e3n n\u1edf ho\u1eb7c co l\u1ea1i c\u1ee7a \u1ed1ng do nhi\u1ec7t \u0111\u1ed9 thay \u0111\u1ed5i. K\u1ebft n\u1ed1i n\u00e0y \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 k\u00edn t\u1ed1t v\u00e0 ng\u0103n ch\u1eb7n r\u00f2 r\u1ec9 trong nhi\u1ec1u lo\u1ea1i c\u00f4ng vi\u1ec7c. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao ng\u01b0\u1eddi ta th\u01b0\u1eddng s\u1eed d\u1ee5ng m\u1eb7t b\u00edch cho h\u1ec7 th\u1ed1ng th\u00e9p kh\u00f4ng g\u1ec9.<\/p>","protected":false},"excerpt":{"rendered":"<p>Key Highlights SO flange, also known as a slip-on flange, slides over steel pipes and connects through fillet welding at the flange top and bottom. Slip-on flanges are designed for easy installation and alignment, making them suitable for low-pressure applications across industries. They are generally more cost-effective compared to other types like weld neck flanges. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3323,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_gspb_post_css":"","footnotes":""},"categories":[393],"tags":[],"class_list":["post-3327","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-information"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/hfittings.com\/vi\/wp-json\/wp\/v2\/posts\/3327","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hfittings.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hfittings.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hfittings.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hfittings.com\/vi\/wp-json\/wp\/v2\/comments?post=3327"}],"version-history":[{"count":0,"href":"https:\/\/hfittings.com\/vi\/wp-json\/wp\/v2\/posts\/3327\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hfittings.com\/vi\/wp-json\/wp\/v2\/media\/3323"}],"wp:attachment":[{"href":"https:\/\/hfittings.com\/vi\/wp-json\/wp\/v2\/media?parent=3327"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hfittings.com\/vi\/wp-json\/wp\/v2\/categories?post=3327"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hfittings.com\/vi\/wp-json\/wp\/v2\/tags?post=3327"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}