{"id":1458,"date":"2026-05-04T08:00:00","date_gmt":"2026-05-04T08:00:00","guid":{"rendered":"https:\/\/www.ykyvalve.com\/?p=1458"},"modified":"2026-06-02T01:35:41","modified_gmt":"2026-06-02T01:35:41","slug":"ball-valve-seat-material-selection","status":"publish","type":"post","link":"https:\/\/www.ykyvalve.com\/vi\/blog\/ball-valves\/ball-valve-seat-material-selection\/","title":{"rendered":"L\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u gio\u0103ng van bi: PTFE so v\u1edbi PEEK so v\u1edbi gio\u0103ng kim lo\u1ea1i"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Vi\u1ec7c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u gio\u0103ng van bi ph\u00f9 h\u1ee3p ph\u1ee5 thu\u1ed9c v\u00e0o ba bi\u1ebfn s\u1ed1 v\u1eadn h\u00e0nh: nhi\u1ec7t \u0111\u1ed9, \u00e1p su\u1ea5t v\u00e0 m\u00f4i ch\u1ea5t.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">PTFE l\u00e0 v\u1eadt li\u1ec7u ti\u00eau chu\u1ea9n ban \u0111\u1ea7u cho c\u00e1c \u1ee9ng d\u1ee5ng th\u00f4ng th\u01b0\u1eddng \u1edf nhi\u1ec7t \u0111\u1ed9 l\u00ean \u0111\u1ebfn 180\u00b0C, n\u01a1i kh\u1ea3 n\u0103ng kh\u00e1ng h\u00f3a ch\u1ea5t v\u00e0 ma s\u00e1t th\u1ea5p l\u00e0 \u01b0u ti\u00ean h\u00e0ng \u0111\u1ea7u. RPTFE c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i c\u01a1 h\u1ecdc n\u1eb7ng h\u01a1n v\u00e0 chu k\u1ef3 ho\u1ea1t \u0111\u1ed9ng cao trong c\u00f9ng ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1eadt li\u1ec7u PEEK ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 l\u00ean \u0111\u1ebfn 250\u00b0C v\u1edbi kh\u1ea3 n\u0103ng ch\u1ed1ng bi\u1ebfn d\u1ea1ng \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p t\u1ed1t h\u01a1n, ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c m\u00f4i tr\u01b0\u1eddng x\u1eed l\u00fd kh\u1eafc nghi\u1ec7t.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gh\u1ebf kim lo\u1ea1i che ph\u1ee7 m\u1ecdi th\u1ee9 ph\u00eda tr\u00ean \u0111\u00f3, bao g\u1ed3m <a href=\"https:\/\/www.ykyvalve.com\/vi\/blog\/application\/high-temperature-valves-selection-guide\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.ykyvalve.com\/blog\/application\/high-temperature-valves-selection-guide\/\" rel=\"noreferrer noopener\">nhi\u1ec7t \u0111\u1ed9 cao<\/a>, C\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 m\u00f4i tr\u01b0\u1eddng m\u00e0i m\u00f2n v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng an to\u00e0n ch\u00e1y n\u1ed5, n\u01a1i m\u00e0 c\u00e1c gio\u0103ng polymer b\u1ecb h\u1ecfng qu\u00e1 nhanh khi\u1ebfn ch\u00fang kh\u00f4ng th\u1ef1c t\u1ebf. Vi\u1ec7c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u gio\u0103ng ph\u00f9 h\u1ee3p v\u1edbi \u0111i\u1ec1u ki\u1ec7n ho\u1ea1t \u0111\u1ed9ng th\u1ef1c t\u1ebf s\u1ebd tr\u1edf n\u00ean d\u1ec5 d\u00e0ng h\u01a1n.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">V\u00f2ng \u0111\u1ec7m PTFE trong van bi l\u00e0 g\u00ec?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">PTFE l\u00e0 v\u1eadt li\u1ec7u l\u00e0m gio\u0103ng m\u1eb7c \u0111\u1ecbnh cho h\u1ea7u h\u1ebft c\u00e1c \u1ee9ng d\u1ee5ng th\u00f4ng th\u01b0\u1eddng. <a href=\"https:\/\/www.ykyvalve.com\/vi\/product-category\/ball-valve\/\" data-type=\"link\" data-id=\"https:\/\/www.ykyvalve.com\/product-category\/ball-valve\/\" target=\"_blank\" rel=\"noreferrer noopener\">van bi<\/a>. M\u1ec1m, tr\u01a1 v\u1ec1 m\u1eb7t h\u00f3a h\u1ecdc \u0111\u1ed1i v\u1edbi h\u1ea7u h\u1ebft c\u00e1c ch\u1ea5t l\u1ecfng trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t, v\u1edbi ma s\u00e1t th\u1ea5p v\u1edbi b\u1ec1 m\u1eb7t bi. Ma s\u00e1t th\u1ea5p \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 m\u00f4-men xo\u1eafn v\u1eadn h\u00e0nh th\u1ea5p h\u01a1n v\u00e0 tu\u1ed5i th\u1ecd gio\u0103ng cao h\u01a1n trong \u0111i\u1ec1u ki\u1ec7n b\u00ecnh th\u01b0\u1eddng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00f2ng \u0111\u1ec7m PTFE ho\u1ea1t \u0111\u1ed9ng trong ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 r\u1ed9ng, kho\u1ea3ng t\u1eeb -29\u00b0C \u0111\u1ebfn 180\u00b0C. N\u00f3 ch\u1ecbu \u0111\u01b0\u1ee3c n\u01b0\u1edbc, h\u01a1i n\u01b0\u1edbc \u1edf nhi\u1ec7t \u0111\u1ed9 trung b\u00ecnh, h\u1ea7u h\u1ebft c\u00e1c axit, hydrocarbon v\u00e0 nhi\u1ec1u lo\u1ea1i h\u00f3a ch\u1ea5t kh\u00e1c m\u00e0 kh\u00f4ng b\u1ecb xu\u1ed1ng c\u1ea5p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u1ea1n ch\u1ebf n\u00e0y th\u1ec3 hi\u1ec7n r\u00f5 khi ch\u1ecbu t\u1ea3i tr\u1ecdng li\u00ean t\u1ee5c. PTFE nguy\u00ean ch\u1ea5t c\u00f3 t\u00ednh ch\u1ea5t ch\u1ea3y d\u1ebbo \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p. Trong c\u00e1c \u1ee9ng d\u1ee5ng \u00e1p su\u1ea5t cao ho\u1eb7c khi van m\u1edf m\u1ed9t ph\u1ea7n trong th\u1eddi gian d\u00e0i, ph\u1ea7n \u0111\u1ebf van s\u1ebd bi\u1ebfn d\u1ea1ng xung quanh vi\u00ean bi. Khi b\u1ecb bi\u1ebfn d\u1ea1ng, \u0111\u1ed9 k\u00edn gi\u1ea3m v\u00e0 m\u00f4-men xo\u1eafn t\u0103ng l\u00ean. \u0110\u00f3 l\u00e0 l\u00fac PTFE b\u1eaft \u0111\u1ea7u b\u1ecb h\u1ecfng tr\u01b0\u1edbc khi \u0111\u1ea1t \u0111\u1ebfn gi\u1edbi h\u1ea1n h\u00f3a h\u1ecdc c\u1ee7a n\u00f3.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">V\u1eadt li\u1ec7u RPTFE: Khi PTFE ti\u00eau chu\u1ea9n kh\u00f4ng \u0111\u00e1p \u1ee9ng \u0111\u1ee7 y\u00eau c\u1ea7u.<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1eadt li\u1ec7u RPTFE, PTFE gia c\u01b0\u1eddng, b\u1ed5 sung c\u00e1c ch\u1ea5t \u0111\u1ed9n nh\u01b0 s\u1ee3i th\u1ee7y tinh, carbon ho\u1eb7c than ch\u00ec v\u00e0o ma tr\u1eadn PTFE. Ch\u1ea5t \u0111\u1ed9n n\u00e0y gi\u00fap c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u1ec1n n\u00e9n v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc m\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn kh\u1ea3 n\u0103ng kh\u00e1ng h\u00f3a ch\u1ea5t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00f2ng \u0111\u1ec7m RPTFE ch\u1ecbu \u0111\u01b0\u1ee3c \u00e1p su\u1ea5t cao h\u01a1n v\u00e0 chu k\u1ef3 ho\u1ea1t \u0111\u1ed9ng n\u1eb7ng h\u01a1n so v\u1edbi PTFE nguy\u00ean ch\u1ea5t. \u0110\u00e2y l\u00e0 l\u1ef1a ch\u1ecdn ph\u00f9 h\u1ee3p cho c\u00e1c van t\u1ef1 \u0111\u1ed9ng ho\u1ea1t \u0111\u1ed9ng th\u01b0\u1eddng xuy\u00ean, c\u00e1c \u1ee9ng d\u1ee5ng \u00e1p su\u1ea5t cao v\u00e0 c\u00e1c ho\u1ea1t \u0111\u1ed9ng c\u00f3 t\u1ea3i tr\u1ecdng c\u01a1 h\u1ecdc \u0111\u00e1ng k\u1ec3 l\u00ean v\u00f2ng \u0111\u1ec7m. Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch h\u00f3a h\u1ecdc v\u1eabn t\u01b0\u01a1ng t\u1ef1 nh\u01b0 PTFE nguy\u00ean ch\u1ea5t. S\u1ef1 n\u00e2ng c\u1ea5p n\u1eb1m \u1edf kh\u00eda c\u1ea1nh c\u01a1 h\u1ecdc, kh\u00f4ng ph\u1ea3i h\u00f3a h\u1ecdc.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Van PEEK: B\u01b0\u1edbc ti\u1ebfn v\u01b0\u1ee3t b\u1eadc so v\u1edbi PTFE<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">PEEK (polyether ether ketone) v\u01b0\u1ee3t tr\u1ed9i h\u01a1n PTFE v\u1ec1 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t v\u00e0 \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc. M\u1ed9t \u0111\u1ebf van PEEK c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 l\u00ean \u0111\u1ebfn kho\u1ea3ng 250\u00b0C li\u00ean t\u1ee5c, so v\u1edbi 180\u00b0C c\u1ee7a PTFE. \u0110\u1ed9 b\u1ec1n n\u00e9n c\u0169ng cao h\u01a1n \u0111\u00e1ng k\u1ec3. Hi\u1ec7n t\u01b0\u1ee3ng bi\u1ebfn d\u1ea1ng d\u1ebbo \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p d\u01b0\u1edbi t\u1ea3i tr\u1ecdng duy tr\u00ec c\u0169ng \u00edt g\u00e2y lo ng\u1ea1i h\u01a1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gh\u1ebf van PEEK ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng m\u00e0 PTFE \u0111ang ti\u1ebfn g\u1ea7n \u0111\u1ebfn gi\u1edbi h\u1ea1n nhi\u1ec7t \u0111\u1ed9 ho\u1eb7c \u00e1p su\u1ea5t c\u1ee7a n\u00f3. Ch\u00fang th\u00edch h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng d\u1ea7u n\u00f3ng, \u1ee9ng d\u1ee5ng h\u01a1i n\u01b0\u1edbc \u1edf h\u1ea1 l\u01b0u v\u00e0 c\u00e1c van t\u1ef1 \u0111\u1ed9ng chu k\u1ef3 cao trong m\u00f4i tr\u01b0\u1eddng quy tr\u00ecnh \u0111\u00f2i h\u1ecfi kh\u1eaft khe. Nh\u01b0\u1ee3c \u0111i\u1ec3m l\u00e0 chi ph\u00ed cao h\u01a1n v\u00e0 kh\u1ea3 n\u0103ng kh\u00e1ng h\u00f3a ch\u1ea5t th\u1ea5p h\u01a1n m\u1ed9t ch\u00fat trong m\u1ed9t s\u1ed1 m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n so v\u1edbi PTFE nguy\u00ean ch\u1ea5t.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Gh\u1ebf kim lo\u1ea1i: D\u00e0nh cho nh\u1eefng \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t nh\u1ea5t<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Gh\u1ebf kim lo\u1ea1i ch\u1ecbu \u0111\u01b0\u1ee3c nh\u1eefng \u0111i\u1ec1u m\u00e0 gh\u1ebf polymer kh\u00f4ng th\u1ec3. Nhi\u1ec7t \u0111\u1ed9 cao tr\u00ean 250\u00b0C, ch\u1ea5t m\u00e0i m\u00f2n l\u00e0m m\u00f2n nhanh c\u00e1c gh\u1ebf m\u1ec1m, y\u00eau c\u1ea7u ch\u1ee9ng nh\u1eadn an to\u00e0n ch\u00e1y n\u1ed5 v\u00e0 ch\u00eanh l\u1ec7ch \u00e1p su\u1ea5t c\u1ef1c l\u1edbn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L\u1edbp ph\u1ee7 Stellite, th\u00e9p kh\u00f4ng g\u1ec9 t\u00f4i c\u1ee9ng v\u00e0 cacbua vonfram l\u00e0 nh\u1eefng l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn nh\u1ea5t. M\u1ed7i lo\u1ea1i ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c s\u1ef1 k\u1ebft h\u1ee3p kh\u00e1c nhau v\u1ec1 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t, m\u00e0i m\u00f2n v\u00e0 \u0103n m\u00f2n. M\u00f4-men xo\u1eafn ho\u1ea1t \u0111\u1ed9ng cao h\u01a1n so v\u1edbi c\u00e1c lo\u1ea1i \u0111\u1ebf m\u1ec1m v\u00ec s\u1ef1 ti\u1ebfp x\u00fac kim lo\u1ea1i v\u1edbi kim lo\u1ea1i kh\u00f4ng t\u1ea1o ra giao di\u1ec7n ma s\u00e1t th\u1ea5p t\u01b0\u01a1ng t\u1ef1. M\u00f4-men xo\u1eafn cao h\u01a1n n\u00e0y c\u1ea7n \u0111\u01b0\u1ee3c t\u00ednh \u0111\u1ebfn khi l\u1ef1a ch\u1ecdn k\u00edch th\u01b0\u1edbc b\u1ed9 truy\u1ec1n \u0111\u1ed9ng trong c\u00e1c \u1ee9ng d\u1ee5ng t\u1ef1 \u0111\u1ed9ng h\u00f3a.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gh\u1ebf kim lo\u1ea1i l\u00e0 trang b\u1ecb ti\u00eau chu\u1ea9n trong <a href=\"https:\/\/www.ykyvalve.com\/vi\/blog\/why-a-gate-valve-for-oil-pipelines-is-crucial-isolation-vs-flow-control\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.ykyvalve.com\/blog\/why-a-gate-valve-for-oil-pipelines-is-crucial-isolation-vs-flow-control\/\" rel=\"noreferrer noopener\">\u1ee9ng d\u1ee5ng nh\u00e0 m\u00e1y l\u1ecdc d\u1ea7u<\/a>, d\u1ecbch v\u1ee5 h\u01a1i n\u01b0\u1edbc \u1edf nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 x\u1eed l\u00fd b\u00f9n m\u00e0i m\u00f2n, n\u01a1i c\u00e1c gh\u1ebf m\u1ec1m s\u1ebd nhanh ch\u00f3ng b\u1ecb m\u00f2n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">H\u01b0\u1edbng d\u1eabn l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u m\u1eb7t b\u00edch van bi: So s\u00e1nh v\u00e0 c\u00e1c nguy\u00ean t\u1eafc chung<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>V\u1eadt li\u1ec7u gh\u1ebf<\/strong><\/td><td><strong>Nhi\u1ec7t \u0111\u1ed9 t\u1ed1i \u0111a<\/strong><\/td><td><strong>R\u1ee7i ro ch\u1ea3y l\u1ea1nh<\/strong><\/td><td><strong>Kh\u1ea3 n\u0103ng kh\u00e1ng h\u00f3a ch\u1ea5t<\/strong><\/td><td><strong>T\u1ed1t nh\u1ea5t cho<\/strong><\/td><\/tr><tr><td>PTFE<\/td><td>180\u00b0C<\/td><td>V\u1eeba ph\u1ea3i<\/td><td>Xu\u1ea5t s\u1eafc<\/td><td>D\u1ecbch v\u1ee5 chung, h\u00f3a ch\u1ea5t, n\u01b0\u1edbc<\/td><\/tr><tr><td>RPTFE<\/td><td>180\u00b0C<\/td><td>Th\u1ea5p<\/td><td>Xu\u1ea5t s\u1eafc<\/td><td>D\u1ecbch v\u1ee5 t\u1ed5ng qu\u00e1t chu k\u1ef3 cao, \u00e1p su\u1ea5t cao<\/td><\/tr><tr><td>NH\u00ccN TR\u1ed8M<\/td><td>250\u00b0C<\/td><td>R\u1ea5t th\u1ea5p<\/td><td>T\u1ed1t<\/td><td>D\u1ea7u n\u00f3ng, h\u01a1i n\u01b0\u1edbc, d\u1ecbch v\u1ee5 \u0111\u00f2i h\u1ecfi cao v\u1edbi chu k\u1ef3 ho\u1ea1t \u0111\u1ed9ng l\u1edbn<\/td><\/tr><tr><td>Kim lo\u1ea1i<\/td><td>600\u00b0C tr\u1edf l\u00ean<\/td><td>Kh\u00f4ng c\u00f3<\/td><td>T\u00f9y thu\u1ed9c v\u00e0o h\u1ee3p kim<\/td><td>Nhi\u1ec7t \u0111\u1ed9 cao, m\u00e0i m\u00f2n, ch\u1ed1ng ch\u00e1y, nh\u00e0 m\u00e1y l\u1ecdc d\u1ea7u<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Ba quy t\u1eafc n\u00e0y chi ph\u1ed1i h\u1ea7u h\u1ebft c\u00e1c quy\u1ebft \u0111\u1ecbnh l\u1ef1a ch\u1ecdn n\u00e0y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1eed d\u1ee5ng th\u00f4ng th\u01b0\u1eddng \u1edf nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u00e1p su\u1ea5t v\u1eeba ph\u1ea3i: gio\u0103ng PTFE l\u00e0 l\u1ef1a ch\u1ecdn kh\u1edfi \u0111\u1ea7u ph\u00f9 h\u1ee3p. Hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed v\u00e0 \u0111\u00e1ng tin c\u1eady trong \u0111i\u1ec1u ki\u1ec7n ti\u00eau chu\u1ea9n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi PTFE s\u1eafp \u0111\u1ea1t \u0111\u1ebfn gi\u1edbi h\u1ea1n nhi\u1ec7t \u0111\u1ed9 ho\u1eb7c c\u00f3 hi\u1ec7n t\u01b0\u1ee3ng ch\u1ea3y d\u1ebbo d\u01b0\u1edbi \u00e1p su\u1ea5t: h\u00e3y chuy\u1ec3n sang s\u1eed d\u1ee5ng gio\u0103ng van b\u1eb1ng PEEK. Kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc gi\u1ea3i quy\u1ebft h\u1ea7u h\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 khi\u1ebfn PTFE b\u1ecb h\u1ecfng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec7t \u0111\u1ed9 cao, m\u00f4i tr\u01b0\u1eddng m\u00e0i m\u00f2n, y\u00eau c\u1ea7u an to\u00e0n ch\u00e1y n\u1ed5 ho\u1eb7c ch\u00eanh l\u1ec7ch \u00e1p su\u1ea5t c\u1ef1c l\u1edbn: ch\u1ec9 c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng gio\u0103ng kim lo\u1ea1i. Kh\u00f4ng c\u00f3 l\u1ef1a ch\u1ecdn gio\u0103ng m\u1ec1m n\u00e0o thay th\u1ebf \u0111\u01b0\u1ee3c cho nh\u1eefng \u0111i\u1ec1u ki\u1ec7n n\u00e0y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.ykyvalve.com\/vi\/product-category\/ball-valve\/\">Van bi YKY<\/a> C\u00f3 s\u1eb5n c\u00e1c t\u00f9y ch\u1ecdn gio\u0103ng PTFE, RPTFE, PEEK v\u00e0 kim lo\u1ea1i. Ng\u01b0\u1eddi mua cung c\u1ea5p \u0111i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh, v\u00e0 \u0111\u1ed9i ng\u0169 k\u1ef9 s\u01b0 c\u1ee7a YKY s\u1ebd \u0111\u1ec1 xu\u1ea5t lo\u1ea1i ph\u00f9 h\u1ee3p m\u00e0 kh\u00f4ng t\u00ednh ph\u00ed. M\u1ed7i van \u0111\u1ec1u \u0111\u01b0\u1ee3c ki\u1ec3m tra \u0111\u1ed9 k\u00edn kh\u00ed theo ti\u00eau chu\u1ea9n ISO 5208 v\u1edbi hi\u1ec7u su\u1ea5t l\u00e0m k\u00edn \u0111\u01b0\u1ee3c ghi nh\u1eadn tr\u01b0\u1edbc khi giao h\u00e0ng. \u0110\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh trong m\u00f4i tr\u01b0\u1eddng h\u00f3a ch\u1ea5t \u0103n m\u00f2n v\u1edbi gio\u0103ng l\u00f3t PTFE v\u00e0 <a href=\"https:\/\/www.ykyvalve.com\/vi\/blog\/material\/hastelloy-gate-valve-corrosion-resistance\/\" data-type=\"link\" data-id=\"https:\/\/www.ykyvalve.com\/blog\/material\/hastelloy-gate-valve-corrosion-resistance\/\" target=\"_blank\" rel=\"noreferrer noopener\">Hastelloy<\/a> C\u00e1c ki\u1ec3u th\u00e2n xe k\u1ebft h\u1ee3p tr\u00ean h\u01a1n 30 th\u1ecb tr\u01b0\u1eddng xu\u1ea5t kh\u1ea9u.<\/p>\n\n\n\n<style>\n   .card-title{\n      margin-top:0;\n      font-size:24px;\n      font-weight:bold;\n    }\n<\/style>\n<div style=\"display:flex; gap:20px; border:1px solid #eee; padding:20px; border-radius:8px; align-items:center;\">\n  <!-- Product Image -->\n  <div style=\"flex:1;\">\n    <img decoding=\"async\" src=\"https:\/\/www.ykyvalve.com\/wp-content\/uploads\/2025\/07\/2PC-Flanged-Ball-Valve-800x800.webp\" alt=\"Van bi m\u1eb7t b\u00edch 2 m\u1ea3nh d\u00f9ng cho m\u00f4i tr\u01b0\u1eddng h\u00f3a ch\u1ea5t v\u00e0 \u0103n m\u00f2n.\" style=\"width:100%; border-radius:6px;\">\n  <\/div>\n\n  <!-- Product Content -->\n  <div style=\"flex:2;\">\n    \n    <p class=\"card-title\">Van bi m\u1eb7t b\u00edch 2PC<\/p>\n    \n    <p>\n      \u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1c h\u1ec7 th\u1ed1ng h\u00f3a ch\u1ea5t v\u00e0 c\u00f4ng nghi\u1ec7p, van bi m\u1eb7t b\u00edch 2 m\u1ea3nh n\u00e0y cung c\u1ea5p kh\u1ea3 n\u0103ng \u0111\u00f3ng ng\u1eaft \u0111\u00e1ng tin c\u1eady cho c\u00e1c m\u00f4i ch\u1ea5t \u0103n m\u00f2n nh\u01b0 axit, v\u1edbi hi\u1ec7u su\u1ea5t l\u00e0m k\u00edn \u1ed5n \u0111\u1ecbnh.\n    <\/p>\n    \n    <ul style=\"padding-left:18px;\">\n      <li><strong>K\u00edch c\u1ee1:<\/strong> DN15 \u2013 DN200<\/li>\n      <li><strong>\u00c1p l\u1ef1c:<\/strong> PN16 \u2013 PN64 \/ H\u1ea1ng 150 \u2013 600<\/li>\n      <li><strong>V\u1eadt li\u1ec7u th\u00e2n m\u00e1y:<\/strong> Th\u00e9p kh\u00f4ng g\u1ec9 v\u00e0 th\u00e9p cacbon<\/li>\n      <li><strong>Gh\u1ebf:<\/strong> PTFE \/ RPTFE \/ PEEK<\/li>\n      <li><strong>S\u1ef1 li\u00ean quan:<\/strong> RF, RTJ c\u00f3 m\u1eb7t b\u00edch<\/li>\n      <li><strong>Nhi\u1ec7t \u0111\u1ed9:<\/strong> -29\u00b0C \u0111\u1ebfn 121\u00b0C<\/li>\n    <\/ul>\n    \n    <a href=\"#\" style=\"display:inline-block; margin-top:10px; padding:10px 18px; background:#000; color:#fff; text-decoration:none; border-radius:4px;\">\n      Nh\u1eadn b\u00e1o gi\u00e1\n    <\/a>\n    \n  <\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Danh s\u00e1ch ki\u1ec3m tra d\u00e0nh cho ng\u01b0\u1eddi mua v\u1eadt li\u1ec7u gio\u0103ng van bi<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng t\u1ed1i \u0111a, bao g\u1ed3m c\u1ea3 c\u00e1c \u0111i\u1ec1u ki\u1ec7n b\u1ea5t th\u01b0\u1eddng, ch\u1ee9 kh\u00f4ng ch\u1ec9 nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c1p su\u1ea5t ho\u1ea1t \u0111\u1ed9ng v\u00e0 li\u1ec7u van c\u00f3 ch\u1ecbu \u00e1p su\u1ea5t ch\u00eanh l\u1ec7ch cao k\u00e9o d\u00e0i g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng d\u00f2ng ch\u1ea3y l\u1ea1nh trong c\u00e1c gio\u0103ng m\u1ec1m hay kh\u00f4ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 t\u01b0\u01a1ng th\u00edch c\u1ee7a ch\u1ea5t l\u1ecfng trong quy tr\u00ecnh \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn d\u1ef1a tr\u00ean ch\u1ea5t l\u1ecfng th\u1ef1c t\u1ebf trong quy tr\u00ecnh, ch\u1ee9 kh\u00f4ng ph\u1ea3i d\u1ef1a tr\u00ean bi\u1ec3u \u0111\u1ed3 chung.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ea7n su\u1ea5t chu k\u1ef3. C\u00e1c van t\u1ef1 \u0111\u1ed9ng c\u00f3 chu k\u1ef3 ho\u1ea1t \u0111\u1ed9ng cao c\u1ea7n v\u1eadt li\u1ec7u RPTFE ho\u1eb7c PEEK thay v\u00ec PTFE nguy\u00ean ch\u1ea5t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 k\u00edn l\u00e2u d\u00e0i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Y\u00eau c\u1ea7u v\u1ec1 an to\u00e0n ch\u00e1y n\u1ed5. N\u1ebfu c\u1ea7n thi\u1ebft, gh\u1ebf kim lo\u1ea1i l\u00e0 ti\u00eau chu\u1ea9n k\u1ef9 thu\u1eadt th\u00f4ng th\u01b0\u1eddng b\u1ea5t k\u1ec3 c\u00e1c \u0111i\u1ec1u ki\u1ec7n kh\u00e1c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00e0i li\u1ec7u ki\u1ec3m tra c\u1ee7a nh\u00e0 cung c\u1ea5p. X\u00e1c nh\u1eadn b\u00e1o c\u00e1o ki\u1ec3m tra \u0111\u1ed9 k\u00edn kh\u00ed ISO 5208 c\u00f3 s\u1eb5n cho c\u1ea5u h\u00ecnh gh\u1ebf c\u1ee5 th\u1ec3 tr\u01b0\u1edbc khi ch\u1ea5p nh\u1eadn giao h\u00e0ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa gio\u0103ng PEEK v\u00e0 gio\u0103ng PTFE l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">PTFE m\u1ec1m h\u01a1n, gi\u00e1 th\u00e0nh th\u1ea5p h\u01a1n v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng kh\u00e1ng h\u00f3a ch\u1ea5t, nh\u01b0ng b\u1ecb bi\u1ebfn d\u1ea1ng d\u1ebbo \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p khi ch\u1ecbu t\u1ea3i tr\u1ecdng li\u00ean t\u1ee5c v\u00e0 ch\u1ec9 ch\u1ecbu \u0111\u01b0\u1ee3c \u1edf kho\u1ea3ng 180\u00b0C. PEEK ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 l\u00ean \u0111\u1ebfn 250\u00b0C, ch\u1ed1ng bi\u1ebfn d\u1ea1ng d\u1ebbo \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p t\u1ed1t h\u01a1n v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng \u00e1p su\u1ea5t cao h\u01a1n v\u00e0 chu k\u1ef3 ho\u1ea1t \u0111\u1ed9ng d\u00e0i h\u01a1n, nh\u01b0ng v\u1edbi chi ph\u00ed cao h\u01a1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Van bi c\u00f3 gio\u0103ng kim lo\u1ea1i hay gio\u0103ng m\u1ec1m th\u00ec lo\u1ea1i n\u00e0o t\u1ed1t h\u01a1n?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00f9y thu\u1ed9c v\u00e0o \u1ee9ng d\u1ee5ng. Gh\u1ebf van m\u1ec1m c\u00f3 m\u00f4-men xo\u1eafn th\u1ea5p h\u01a1n v\u00e0 chi ph\u00ed th\u1ea5p h\u01a1n cho c\u00e1c \u1ee9ng d\u1ee5ng th\u00f4ng th\u01b0\u1eddng. Gh\u1ebf van kim lo\u1ea1i ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng nhi\u1ec7t \u0111\u1ed9 cao, m\u00e0i m\u00f2n v\u00e0 ch\u1ed1ng ch\u00e1y, n\u01a1i gh\u1ebf van m\u1ec1m c\u00f3 th\u1ec3 b\u1ecb h\u1ecfng ho\u1eb7c xu\u1ed1ng c\u1ea5p qu\u00e1 nhanh.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">V\u00f2ng \u0111\u1ec7m PTFE trong van bi l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t v\u00f2ng polytetrafluoroethylene ti\u1ebfp x\u00fac v\u1edbi b\u1ec1 m\u1eb7t bi \u1edf c\u1ea3 hai ph\u00eda khi \u0111\u00f3ng, t\u1ea1o ra m\u1ed9t l\u1edbp \u0111\u1ec7m k\u00edn c\u00f3 ma s\u00e1t th\u1ea5p v\u00e0 kh\u00e1ng h\u00f3a ch\u1ea5t. \u0110\u00e2y l\u00e0 ti\u00eau chu\u1ea9n trong h\u1ea7u h\u1ebft c\u00e1c van bi th\u00f4ng d\u1ee5ng \u1edf nhi\u1ec7t \u0111\u1ed9 l\u00ean \u0111\u1ebfn kho\u1ea3ng 180\u00b0C.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Van PEEK l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u01b0\u1ee3c l\u00e0m t\u1eeb polyether ether ketone, m\u1ed9t lo\u1ea1i polymer k\u1ef9 thu\u1eadt hi\u1ec7u su\u1ea5t cao. Ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n PTFE, l\u00ean \u0111\u1ebfn kho\u1ea3ng 250\u00b0C, ch\u1ed1ng bi\u1ebfn d\u1ea1ng d\u1ebbo \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p d\u01b0\u1edbi t\u1ea3i tr\u1ecdng li\u00ean t\u1ee5c v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi cao, n\u01a1i PTFE \u0111ang ti\u1ebfn g\u1ea7n \u0111\u1ebfn gi\u1edbi h\u1ea1n hi\u1ec7u su\u1ea5t c\u1ee7a n\u00f3.<\/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-text-color has-background has-link-color wp-element-button\" href=\"https:\/\/www.ykyvalve.com\/vi\/contact-us\/\" style=\"color:#fffbfb;background-color:#f6771c\" target=\"_blank\" rel=\"noreferrer noopener\">Nh\u1eadn b\u00e1o gi\u00e1 mi\u1ec5n ph\u00ed<\/a><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Choosing the right ball valve seat material comes down to three operating variables: temperature, pressure, and media.&nbsp; PTFE is the standard starting point for general service<span class=\"excerpt-hellip\"> [\u2026]<\/span><\/p>\n","protected":false},"author":1,"featured_media":1443,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[65],"tags":[],"class_list":["post-1458","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ball-valves"],"_links":{"self":[{"href":"https:\/\/www.ykyvalve.com\/vi\/wp-json\/wp\/v2\/posts\/1458","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ykyvalve.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ykyvalve.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ykyvalve.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ykyvalve.com\/vi\/wp-json\/wp\/v2\/comments?post=1458"}],"version-history":[{"count":5,"href":"https:\/\/www.ykyvalve.com\/vi\/wp-json\/wp\/v2\/posts\/1458\/revisions"}],"predecessor-version":[{"id":1484,"href":"https:\/\/www.ykyvalve.com\/vi\/wp-json\/wp\/v2\/posts\/1458\/revisions\/1484"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ykyvalve.com\/vi\/wp-json\/wp\/v2\/media\/1443"}],"wp:attachment":[{"href":"https:\/\/www.ykyvalve.com\/vi\/wp-json\/wp\/v2\/media?parent=1458"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ykyvalve.com\/vi\/wp-json\/wp\/v2\/categories?post=1458"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ykyvalve.com\/vi\/wp-json\/wp\/v2\/tags?post=1458"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}