{"id":5867,"date":"2026-09-04T12:59:31","date_gmt":"2026-09-04T04:59:31","guid":{"rendered":"https:\/\/www.sj-gauge.com\/?p=5867"},"modified":"2026-09-04T14:13:56","modified_gmt":"2026-09-04T06:13:56","slug":"pressure-gauge-thread-will-not-fit","status":"publish","type":"post","link":"https:\/\/www.sj-gauge.com\/vi\/pressure-gauge-thread-will-not-fit\/","title":{"rendered":"C\u00f9ng lo\u1ea1i ren 1\/4 inch \u2014 T\u1ea1i sao \u0111\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t l\u1ea1i kh\u00f4ng l\u1eafp v\u1eeba?"},"content":{"rendered":"<p>\u0110\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t v\u00e0 ph\u1ee5 ki\u1ec7n \u0111\u01b0\u1eddng \u1ed1ng c\u00f3 th\u1ec3 c\u00f9ng \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u \u201c1\/4 inch\u201d, nh\u01b0ng \u0111i\u1ec1u \u0111\u00f3 kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t c\u00f9ng nhau. K\u00fd hi\u1ec7u n\u00e0y ch\u1ec9 x\u00e1c \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc danh ngh\u0129a; b\u1ea1n c\u0169ng ph\u1ea3i x\u00e1c nh\u1eadn ti\u00eau chu\u1ea9n ren, ch\u1eb3ng h\u1ea1n nh\u01b0 NPT, G\/BSPP ho\u1eb7c PT\/R.<\/p>\n\n\n\n<p>N\u1ebfu kh\u1edbp n\u1ed1i ch\u1ec9 ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c m\u1ed9t ho\u1eb7c hai v\u00f2ng, tr\u1edf n\u00ean ng\u00e0y c\u00e0ng l\u1ec7ch ho\u1eb7c c\u1ea7n l\u1ef1c si\u1ebft cao b\u1ea5t th\u01b0\u1eddng, h\u00e3y d\u1eebng ngay l\u1eadp t\u1ee9c \u0111\u1ec3 tr\u00e1nh l\u00e0m h\u1ecfng ren v\u0129nh vi\u1ec5n.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\" style=\"width:640px\"><img fetchpriority=\"high\" decoding=\"async\" width=\"993\" height=\"993\" src=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-pressure-gauge-quarter-inch-npt-thread-square.jpg\" alt=\"SJ pressure gauge with a 1\/4-inch NPT male process connection\" class=\"wp-image-5870\" srcset=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-pressure-gauge-quarter-inch-npt-thread-square.jpg 993w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-pressure-gauge-quarter-inch-npt-thread-square-300x300.jpg 300w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-pressure-gauge-quarter-inch-npt-thread-square-150x150.jpg 150w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-pressure-gauge-quarter-inch-npt-thread-square-768x768.jpg 768w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-pressure-gauge-quarter-inch-npt-thread-square-12x12.jpg 12w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-pressure-gauge-quarter-inch-npt-thread-square-600x600.jpg 600w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-pressure-gauge-quarter-inch-npt-thread-square-100x100.jpg 100w\" sizes=\"(max-width: 993px) 100vw, 993px\" \/><figcaption class=\"wp-element-caption\">\u0110\u1ea7u n\u1ed1i ren ngo\u00e0i NPT 1\/4 inch tr\u00ean \u0111\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t SJ.<\/figcaption><\/figure>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_87 counter-hierarchy ez-toc-counter ez-toc-custom 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=\"B\u1eadt\/t\u1eaft M\u1ee5c l\u1ee5c\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">B\u1eadt\/T\u1eaft<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #7b1e1c;color:#7b1e1c\" 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: #7b1e1c;color:#7b1e1c\" 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' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.sj-gauge.com\/vi\/pressure-gauge-thread-will-not-fit\/#why-wont-threads-of-the-same-size-fit\" >T\u1ea1i sao c\u00e1c s\u1ee3i ch\u1ec9 c\u00f9ng k\u00edch th\u01b0\u1edbc l\u1ea1i kh\u00f4ng v\u1eeba?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.sj-gauge.com\/vi\/pressure-gauge-thread-will-not-fit\/#what-happens-if-you-force-the-connection\" >\u0110i\u1ec1u g\u00ec s\u1ebd x\u1ea3y ra n\u1ebfu b\u1ea1n \u00e9p bu\u1ed9c k\u1ebft n\u1ed1i?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.sj-gauge.com\/vi\/pressure-gauge-thread-will-not-fit\/#how-to-identify-the-correct-thread\" >C\u00e1ch x\u00e1c \u0111\u1ecbnh lo\u1ea1i ch\u1ec9 ph\u00f9 h\u1ee3p<\/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.sj-gauge.com\/vi\/pressure-gauge-thread-will-not-fit\/#international-standards-reference\" >Tham kh\u1ea3o ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf<\/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.sj-gauge.com\/vi\/pressure-gauge-thread-will-not-fit\/#frequently-asked-questions\" >C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/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.sj-gauge.com\/vi\/pressure-gauge-thread-will-not-fit\/#conclusion\" >K\u1ebft lu\u1eadn<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\" id=\"h-why-won-t-threads-of-the-same-size-fit\"><span class=\"ez-toc-section\" id=\"why-wont-threads-of-the-same-size-fit\"><\/span>T\u1ea1i sao c\u00e1c s\u1ee3i ch\u1ec9 c\u00f9ng k\u00edch th\u01b0\u1edbc l\u1ea1i kh\u00f4ng v\u1eeba?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>C\u00e1c l\u00fd do li\u00ean quan \u0111\u1ebfn Common bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>M\u1ed9t b\u00ean c\u00f3 ren c\u00f4n, b\u00ean kia c\u00f3 ren song song.<\/li>\n\n\n\n<li>B\u01b0\u1edbc ren ho\u1eb7c h\u00ecnh d\u1ea1ng ren kh\u00e1c nhau<\/li>\n\n\n\n<li>Dung sai ren trong v\u00e0 ren ngo\u00e0i kh\u00f4ng t\u01b0\u01a1ng th\u00edch.<\/li>\n\n\n\n<li>L\u1ed7 l\u1eafp \u0111\u1eb7t b\u1ecb l\u00f5m ho\u1eb7c c\u00f3 g\u1edd.<\/li>\n\n\n\n<li>Trong qu\u00e1 tr\u00ecnh l\u1eafp \u0111\u1eb7t, m\u1ed1i n\u1ed1i kh\u00f4ng \u0111\u01b0\u1ee3c c\u0103n ch\u1ec9nh \u0111\u00fang c\u00e1ch, d\u1eabn \u0111\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng v\u1eb7n l\u1ec7ch ren.<\/li>\n\n\n\n<li>Keo d\u00e1n c\u0169 ho\u1eb7c ch\u1ea5t \u0103n m\u00f2n c\u00f2n s\u00f3t l\u1ea1i b\u00ean trong ren hi\u1ec7n c\u00f3.<\/li>\n<\/ul>\n\n\n\n<p>K\u00edch th\u01b0\u1edbc danh ngh\u0129a c\u1ee7a ren \u1ed1ng c\u0169ng kh\u00f4ng gi\u1ed1ng v\u1edbi \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i \u0111\u01b0\u1ee3c \u0111o tr\u1ef1c ti\u1ebfp, v\u00ec v\u1eady b\u1ea1n kh\u00f4ng th\u1ec3 ch\u1ec9 \u0111o \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i v\u00e0 so s\u00e1nh n\u00f3 v\u1edbi &quot;1\/4 inch&quot;.\u201c<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\" style=\"width:640px\"><img decoding=\"async\" width=\"1440\" height=\"1080\" src=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/quarter-inch-npt-thread-adapter-side.jpg\" alt=\"Close-up side view of a 1\/4-inch NPT male thread adapter\" class=\"wp-image-5864\" srcset=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/quarter-inch-npt-thread-adapter-side.jpg 1440w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/quarter-inch-npt-thread-adapter-side-300x225.jpg 300w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/quarter-inch-npt-thread-adapter-side-1024x768.jpg 1024w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/quarter-inch-npt-thread-adapter-side-768x576.jpg 768w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/quarter-inch-npt-thread-adapter-side-16x12.jpg 16w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/quarter-inch-npt-thread-adapter-side-600x450.jpg 600w\" sizes=\"(max-width: 1440px) 100vw, 1440px\" \/><figcaption class=\"wp-element-caption\">H\u00ecnh chi\u1ebfu c\u1ea1nh c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i ren ngo\u00e0i NPT 1\/4 inch d\u00f9ng \u0111\u1ec3 ki\u1ec3m tra bi\u00ean d\u1ea1ng v\u00e0 b\u01b0\u1edbc ren.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-what-happens-if-you-force-the-connection\"><span class=\"ez-toc-section\" id=\"what-happens-if-you-force-the-connection\"><\/span>\u0110i\u1ec1u g\u00ec s\u1ebd x\u1ea3y ra n\u1ebfu b\u1ea1n \u00e9p bu\u1ed9c k\u1ebft n\u1ed1i?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Vi\u1ec7c \u00e9p bu\u1ed9c s\u1eed d\u1ee5ng c\u00e1c ti\u00eau chu\u1ea9n lu\u1ed3ng kh\u00f4ng t\u01b0\u01a1ng th\u00edch v\u1edbi nhau c\u00f3 th\u1ec3 g\u00e2y ra:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Bi\u1ebfn d\u1ea1ng ho\u1eb7c \u0111\u1ee9t g\u00e3y ren.<\/li>\n\n\n\n<li>Hi\u1ec7n t\u01b0\u1ee3ng k\u1eb9t ho\u1eb7c b\u00f3 c\u1ee9ng ren th\u00e9p kh\u00f4ng g\u1ec9.<\/li>\n\n\n\n<li>M\u1ed9t m\u1ed1i li\u00ean k\u1ebft kh\u00f4ng th\u1ec3 t\u00e1ch r\u1eddi.<\/li>\n\n\n\n<li>R\u00f2 r\u1ec9 kh\u00ed ho\u1eb7c ch\u1ea5t l\u1ecfng sau khi n\u00e9n \u00e1p su\u1ea5t.<\/li>\n\n\n\n<li>L\u1ef1c momen xo\u1eafn b\u1ea5t th\u01b0\u1eddng t\u00e1c \u0111\u1ed9ng l\u00ean kh\u1edbp n\u1ed1i c\u1ee7a \u0111\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t.<\/li>\n<\/ol>\n\n\n\n<p>Ngay c\u1ea3 khi kh\u00f4ng c\u00f3 hi\u1ec7n t\u01b0\u1ee3ng r\u00f2 r\u1ec9 immediate, \u0111i\u1ec1u \u0111\u00f3 kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 k\u1ebft n\u1ed1i an to\u00e0n \u0111\u1ec3 s\u1eed d\u1ee5ng l\u00e2u d\u00e0i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-how-to-identify-the-correct-thread\"><span class=\"ez-toc-section\" id=\"how-to-identify-the-correct-thread\"><\/span>C\u00e1ch x\u00e1c \u0111\u1ecbnh lo\u1ea1i ch\u1ec9 ph\u00f9 h\u1ee3p<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Tr\u01b0\u1edbc ti\u00ean, h\u00e3y ki\u1ec3m tra c\u00e1c k\u00fd hi\u1ec7u th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt tr\u00ean \u0111\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t c\u0169, b\u1ea3n v\u1ebd thi\u1ebft b\u1ecb ho\u1eb7c ph\u1ee5 ki\u1ec7n. N\u1ebfu kh\u00f4ng c\u00f3 k\u00fd hi\u1ec7u n\u00e0o, h\u00e3y \u0111o \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i, b\u01b0\u1edbc ren v\u00e0 \u0111\u1ed9 c\u00f4n, sau \u0111\u00f3 x\u00e1c nh\u1eadn k\u1ebft qu\u1ea3 b\u1eb1ng th\u01b0\u1edbc \u0111o ren.<\/p>\n\n\n\n<p>N\u1ebfu kh\u00f4ng th\u1ec3 t\u1eaft thi\u1ebft b\u1ecb, tr\u01b0\u1edbc ti\u00ean h\u00e3y ki\u1ec3m tra h\u1ed3 s\u01a1 mua h\u00e0ng, ki\u1ec3u s\u1ea3n ph\u1ea9m c\u0169 v\u00e0 b\u1ea3n v\u1ebd \u0111\u01b0\u1eddng \u1ed1ng ban \u0111\u1ea7u. Tuy\u1ec7t \u0111\u1ed1i kh\u00f4ng \u0111\u01b0\u1ee3c th\u00e1o kh\u1edbp n\u1ed1i \u0111\u1ec3 \u0111o khi h\u1ec7 th\u1ed1ng \u0111ang ch\u1ecbu \u00e1p su\u1ea5t.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\" style=\"width:640px\"><img decoding=\"async\" width=\"1440\" height=\"1080\" src=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/quarter-inch-npt-thread-adapter-front.jpg\" alt=\"Front-angle view of a 1\/4-inch NPT male thread adapter\" class=\"wp-image-5865\" srcset=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/quarter-inch-npt-thread-adapter-front.jpg 1440w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/quarter-inch-npt-thread-adapter-front-300x225.jpg 300w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/quarter-inch-npt-thread-adapter-front-1024x768.jpg 1024w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/quarter-inch-npt-thread-adapter-front-768x576.jpg 768w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/quarter-inch-npt-thread-adapter-front-16x12.jpg 16w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/quarter-inch-npt-thread-adapter-front-600x450.jpg 600w\" sizes=\"(max-width: 1440px) 100vw, 1440px\" \/><figcaption class=\"wp-element-caption\">H\u00ecnh chi\u1ebfu m\u1eb7t tr\u01b0\u1edbc c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i NPT 1\/4 inch, cho th\u1ea5y \u0111\u1ea7u ren v\u00e0 h\u00ecnh d\u1ea1ng b\u00ean ngo\u00e0i.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-international-standards-reference\"><span class=\"ez-toc-section\" id=\"international-standards-reference\"><\/span>Tham kh\u1ea3o ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>C\u00e1c ti\u00eau chu\u1ea9n sau \u0111\u00e2y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m t\u00e0i li\u1ec7u tham kh\u1ea3o cho vi\u1ec7c l\u1ef1a ch\u1ecdn, l\u1eafp \u0111\u1eb7t ho\u1eb7c ki\u1ec3m tra li\u00ean quan \u0111\u1ebfn ch\u1ee7 \u0111\u1ec1 n\u00e0y:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.asme.org\/codes-standards\/find-codes-standards\/b1201-pipe-threads-general-purpose-inch\"><strong>ASME B1.20.1-2013 (R2018):<\/strong> K\u00edch th\u01b0\u1edbc danh ngh\u0129a, \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i, b\u01b0\u1edbc ren v\u00e0 \u0111\u1ed9 c\u00f4n c\u1ee7a ren NPT ph\u1ea3i \u0111\u01b0\u1ee3c ki\u1ec3m tra theo ti\u00eau chu\u1ea9n; ch\u1ec9 ghi nh\u00e3n \u201c1\/4 inch\u201d l\u00e0 kh\u00f4ng \u0111\u1ee7.<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.iso.org\/standard\/20819.html\"><strong>ISO 7-1:1994 + Cor.1:2007:<\/strong> Ren \u1ed1ng c\u00f4n d\u00f2ng R kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c coi l\u00e0 c\u00f9ng lo\u1ea1i ren v\u1edbi NPT, ngay c\u1ea3 khi k\u00edch th\u01b0\u1edbc danh ngh\u0129a gi\u1ed1ng nhau.<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.iso.org\/standard\/33777.html\"><strong>ISO 228-1:2000:<\/strong> C\u00e1c ren song song lo\u1ea1i G y\u00eau c\u1ea7u ki\u1ec3m tra k\u00edch th\u01b0\u1edbc ren v\u00e0 b\u1ec1 m\u1eb7t l\u00e0m k\u00edn b\u00ean ngo\u00e0i; kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh ch\u1ec9 b\u1eb1ng vi\u1ec7c li\u1ec7u c\u00e1c ren c\u00f3 th\u1ec3 v\u1eb7n v\u00e0o nhau hay kh\u00f4ng.<\/a><\/li>\n<\/ul>\n\n\n\n<p>L\u01b0u \u00fd v\u1ec1 ti\u00eau chu\u1ea9n: X\u00e1c nh\u1eadn ph\u1ea1m vi, phi\u00ean b\u1ea3n v\u00e0 t\u00e0i li\u1ec7u ch\u1ee9ng nh\u1eadn \u00e1p d\u1ee5ng theo v\u1ecb tr\u00ed thi\u1ebft b\u1ecb, r\u1ee7i ro quy tr\u00ecnh v\u00e0 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt mua h\u00e0ng. Vi\u1ec7c tham chi\u1ebfu m\u1ed9t ti\u00eau chu\u1ea9n kh\u00f4ng t\u1ef1 \u0111\u1ed9ng ch\u1ee9ng nh\u1eadn s\u1ea3n ph\u1ea9m, c\u0169ng kh\u00f4ng thay th\u1ebf x\u00e1c nh\u1eadn c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t v\u1ec1 lo\u1ea1i k\u1ebft n\u1ed1i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-frequently-asked-questions\"><span class=\"ez-toc-section\" id=\"frequently-asked-questions\"><\/span>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-can-more-thread-sealing-tape-fix-an-incompatible-thread\">Li\u1ec7u vi\u1ec7c s\u1eed d\u1ee5ng th\u00eam b\u0103ng keo b\u1ecbt k\u00edn ren c\u00f3 th\u1ec3 kh\u1eafc ph\u1ee5c \u0111\u01b0\u1ee3c t\u00ecnh tr\u1ea1ng ren kh\u00f4ng t\u01b0\u01a1ng th\u00edch?<\/h3>\n\n\n\n<p>Kh\u00f4ng. B\u0103ng keo b\u1ecbt k\u00edn ren ch\u1ec9 c\u00f3 th\u1ec3 gi\u00fap b\u1ecbt k\u00edn c\u00e1c ren t\u01b0\u01a1ng th\u00edch. N\u00f3 kh\u00f4ng th\u1ec3 kh\u1eafc ph\u1ee5c s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 b\u01b0\u1edbc ren, h\u00ecnh d\u1ea1ng ren ho\u1eb7c \u0111\u1ed9 c\u00f4n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-can-a-fitting-still-be-used-after-it-has-been-forced-together\">M\u1ed9t ph\u1ee5 ki\u1ec7n \u0111\u00e3 \u0111\u01b0\u1ee3c \u00e9p ch\u1eb7t v\u00e0o nhau li\u1ec7u c\u00f3 c\u00f2n s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c n\u1eefa kh\u00f4ng?<\/h3>\n\n\n\n<p>Tr\u01b0\u1edbc ti\u00ean, h\u00e3y ki\u1ec3m tra c\u00e1c ren xem c\u00f3 b\u1ecb bi\u1ebfn d\u1ea1ng, tr\u1ea7y x\u01b0\u1edbc ho\u1eb7c k\u1eb9t kh\u00f4ng. Kh\u00f4ng n\u00ean t\u00e1i s\u1eed d\u1ee5ng tr\u1ef1c ti\u1ebfp ph\u1ee5 ki\u1ec7n b\u1ecb h\u01b0 h\u1ecfng tr\u00ean thi\u1ebft b\u1ecb c\u00f3 \u00e1p su\u1ea5t quan tr\u1ecdng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-conclusion\"><span class=\"ez-toc-section\" id=\"conclusion\"><\/span>K\u1ebft lu\u1eadn<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>C\u00e1c ren c\u00f3 c\u00f9ng k\u00edch th\u01b0\u1edbc danh ngh\u0129a 1\/4 inch v\u1eabn c\u00f3 th\u1ec3 kh\u00f4ng l\u1eafp \u0111\u1eb7t \u0111\u01b0\u1ee3c v\u00ec ch\u00fang tu\u00e2n theo c\u00e1c ti\u00eau chu\u1ea9n kh\u00e1c nhau. N\u1ebfu g\u1eb7p ph\u1ea3i l\u1ef1c c\u1ea3n b\u1ea5t th\u01b0\u1eddng, \u0111\u1eebng c\u1ed1 g\u1eafng \u00e9p bu\u1ed9c k\u1ebft n\u1ed1i. Tr\u01b0\u1edbc ti\u00ean, h\u00e3y x\u00e1c nh\u1eadn ti\u00eau chu\u1ea9n ren, b\u01b0\u1edbc ren, \u0111\u1ed9 c\u00f4n v\u00e0 ph\u01b0\u01a1ng ph\u00e1p l\u00e0m k\u00edn.<\/p>\n\n\n\n<p><strong><a href=\"https:\/\/www.sj-gauge.com\/vi\/contact\/\">N\u1ebfu b\u1ea1n kh\u00f4ng th\u1ec3 x\u00e1c nh\u1eadn ti\u00eau chu\u1ea9n ren c\u1ee7a thi\u1ebft b\u1ecb, h\u00e3y g\u1eedi model s\u1ea3n ph\u1ea9m c\u0169, \u1ea3nh ch\u1ee5p c\u1eadn c\u1ea3nh ren v\u00e0 k\u00edch th\u01b0\u1edbc \u0111\u1ebfn SJ Gauge \u0111\u1ec3 ch\u00fang t\u00f4i c\u00f3 th\u1ec3 gi\u00fap x\u00e1c \u0111\u1ecbnh k\u1ebft n\u1ed1i quy tr\u00ecnh ph\u00f9 h\u1ee3p.<\/a><\/strong><\/p>\n\n\n\n<p><em><a href=\"https:\/\/www.sj-gauge.com\/vi\/pressure-gauge-npt-pt-g-thread\/\">\u0110\u1ecdc th\u00eam: \u0110\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t ren NPT, PT v\u00e0 G: S\u1ef1 kh\u00e1c bi\u1ec7t v\u00e0 ph\u01b0\u01a1ng ph\u00e1p l\u00e0m k\u00edn<\/a><\/em><\/p>","protected":false},"excerpt":{"rendered":"<p>A pressure gauge and a pipe fitting may both be marked \u201c1\/4 inch,\u201d but that does not mean they can be installed together. The designation identifies only the nominal size; you must also confirm the thread standard, such as NPT, G\/BSPP, or PT\/R. If the connection engages for only one or two turns, becomes increasingly [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":5866,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[61],"tags":[71],"class_list":["post-5867","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge","tag-pressure"],"blocksy_meta":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.7 (Yoast SEO v28.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Why Won&#039;t a 1\/4-Inch Pressure Gauge Thread Fit?<\/title>\n<meta name=\"description\" content=\"Both parts are marked 1\/4 inch but engage for only one or two turns? 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