{"id":5374,"date":"2026-07-22T18:59:08","date_gmt":"2026-07-22T10:59:08","guid":{"rendered":"https:\/\/www.sj-gauge.com\/?p=5374"},"modified":"2026-07-22T19:03:42","modified_gmt":"2026-07-22T11:03:42","slug":"pressure-gauge-pointer-vibration","status":"publish","type":"post","link":"https:\/\/www.sj-gauge.com\/vi\/pressure-gauge-pointer-vibration\/","title":{"rendered":"V\u00ec sao kim \u0111\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t b\u1ecb rung? \u0110\u1ed3ng h\u1ed3 c\u00f3 d\u1ea7u c\u00f3 gi\u00fap c\u1ea3i thi\u1ec7n kh\u00f4ng?"},"content":{"rendered":"<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/07\/SJ-Gauge-Pressure-Gauge-Pointer-Vibrating-1024x768.png\" alt=\"\u0110\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 cho th\u1ea5y kim ch\u1ec9 th\u1ecb rung nh\u1eb9 trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh c\u00f4ng nghi\u1ec7p.\" class=\"wp-image-5378\" srcset=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/07\/SJ-Gauge-Pressure-Gauge-Pointer-Vibrating-1024x768.png 1024w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/07\/SJ-Gauge-Pressure-Gauge-Pointer-Vibrating-300x225.png 300w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/07\/SJ-Gauge-Pressure-Gauge-Pointer-Vibrating-768x576.png 768w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/07\/SJ-Gauge-Pressure-Gauge-Pointer-Vibrating-16x12.png 16w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/07\/SJ-Gauge-Pressure-Gauge-Pointer-Vibrating-600x450.png 600w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/07\/SJ-Gauge-Pressure-Gauge-Pointer-Vibrating.png 1448w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">\u0110\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 cho th\u1ea5y kim ch\u1ec9 th\u1ecb rung nh\u1eb9 do s\u1ef1 dao \u0111\u1ed9ng trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t ho\u1eb7c rung \u0111\u1ed9ng c\u01a1 h\u1ecdc.<\/figcaption><\/figure>\n\n\n\n<p>Kim ch\u1ec9 th\u1ecb \u00e1p su\u1ea5t li\u00ean t\u1ee5c rung l\u1eafc th\u01b0\u1eddng do thi\u1ebft b\u1ecb rung ho\u1eb7c do s\u1ef1 dao \u0111\u1ed9ng \u00e1p su\u1ea5t nhanh trong \u0111\u01b0\u1eddng \u1ed1ng. Ngo\u00e0i vi\u1ec7c g\u00e2y kh\u00f3 kh\u0103n cho vi\u1ec7c quan s\u00e1t s\u1ed1 li\u1ec7u, rung \u0111\u1ed9ng k\u00e9o d\u00e0i c\u00f3 th\u1ec3 l\u00e0m t\u0103ng t\u1ed1c \u0111\u1ed9 m\u00e0i m\u00f2n c\u00e1c b\u00e1nh r\u0103ng, kh\u1edbp n\u1ed1i v\u00e0 \u1ed5 bi c\u1ee7a \u0111\u1ed3ng h\u1ed3 \u0111o.<\/p>\n\n\n\n<p>\u0110\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t c\u00f3 d\u1ea7u s\u1eed d\u1ee5ng glycerin ho\u1eb7c d\u1ea7u silicone b\u00ean trong v\u1ecf \u0111\u1ec3 gi\u1ea3m dao \u0111\u1ed9ng c\u1ee7a kim. \u0110\u00e2y l\u00e0 gi\u1ea3i ph\u00e1p ph\u1ed5 bi\u1ebfn cho m\u00e1y b\u01a1m, m\u00e1y n\u00e9n kh\u00ed v\u00e0 thi\u1ebft b\u1ecb th\u1ee7y l\u1ef1c. Tuy nhi\u00ean, n\u1ebfu h\u1ec7 th\u1ed1ng x\u1ea3y ra b\u00faa n\u01b0\u1edbc nghi\u00eam tr\u1ecdng ho\u1eb7c xung \u00e1p \u0111\u1ed9t ng\u1ed9t, ch\u1ec9 ch\u00e2m d\u1ea7u c\u00f3 th\u1ec3 kh\u00f4ng gi\u1ea3i quy\u1ebft ho\u00e0n to\u00e0n v\u1ea5n \u0111\u1ec1.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 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-pointer-vibration\/#why-does-a-pressure-gauge-pointer-vibrate\" >T\u1ea1i sao kim ch\u1ec9 th\u1ecb c\u1ee7a \u0111\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t l\u1ea1i rung?<\/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-pointer-vibration\/#what-can-a-liquid-filled-pressure-gauge-improve\" >\u0110\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t c\u00f3 d\u1ea7u c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n \u0111i\u1ec1u g\u00ec?<\/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-pointer-vibration\/#what-if-the-pointer-still-vibrates-after-switching-to-a-liquid-filled-gauge\" >N\u1ebfu kim v\u1eabn rung sau khi chuy\u1ec3n sang \u0111\u1ed3ng h\u1ed3 c\u00f3 d\u1ea7u th\u00ec sao?<\/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-pointer-vibration\/#international-standards-references\" >T\u00e0i li\u1ec7u 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-pointer-vibration\/#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-pointer-vibration\/#conclusion\" >K\u1ebft lu\u1eadn<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\" id=\"h-why-does-a-pressure-gauge-pointer-vibrate\"><span class=\"ez-toc-section\" id=\"why-does-a-pressure-gauge-pointer-vibrate\"><\/span>T\u1ea1i sao kim ch\u1ec9 th\u1ecb c\u1ee7a \u0111\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t l\u1ea1i rung?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>C\u00e1c nguy\u00ean nh\u00e2n th\u01b0\u1eddng g\u1eb7p g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Rung \u0111\u1ed9ng li\u00ean t\u1ee5c t\u1eeb \u0111\u1ed9ng c\u01a1, m\u00e1y b\u01a1m ho\u1eb7c m\u00e1y n\u00e9n kh\u00ed<\/li>\n\n\n\n<li>Bi\u1ebfn \u0111\u1ed9ng \u00e1p su\u1ea5t \u0111\u1ecbnh k\u1ef3 do m\u00e1y b\u01a1m piston t\u1ea1o ra<\/li>\n\n\n\n<li>S\u1ed1c \u00e1p su\u1ea5t do van \u0111\u00f3ng ho\u1eb7c m\u1edf nhanh g\u00e2y ra.<\/li>\n\n\n\n<li>Ph\u1ea1m vi \u00e1p su\u1ea5t qu\u00e1 th\u1ea5p, khi\u1ebfn kim ch\u1ec9 th\u1ecb qu\u00e1 nh\u1ea1y c\u1ea3m v\u1edbi c\u00e1c thay \u0111\u1ed5i.<\/li>\n\n\n\n<li>M\u1ed9t thi\u1ebft b\u1ecb \u0111o \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t tr\u1ef1c ti\u1ebfp t\u1ea1i v\u1ecb tr\u00ed c\u00f3 \u0111\u1ed9 rung m\u1ea1nh.<\/li>\n<\/ul>\n\n\n\n<p>N\u1ebfu kim ch\u1ec9 th\u1ecb ch\u1ec9 di chuy\u1ec3n trong th\u1eddi gian ng\u1eafn khi kh\u1edfi \u0111\u1ed9ng thi\u1ebft b\u1ecb, \u0111i\u1ec1u \u0111\u00f3 c\u00f3 th\u1ec3 ch\u1ec9 ph\u1ea3n \u00e1nh s\u1ef1 thay \u0111\u1ed5i \u00e1p su\u1ea5t b\u00ecnh th\u01b0\u1eddng. N\u1ebfu n\u00f3 ti\u1ebfp t\u1ee5c rung nhanh trong qu\u00e1 tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng, c\u1ea7n ki\u1ec3m tra ngu\u1ed3n g\u1ed1c c\u1ee7a s\u1ef1 rung \u0111\u1ed9ng v\u00e0 \u0111i\u1ec1u ki\u1ec7n \u00e1p su\u1ea5t c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-what-can-a-liquid-filled-pressure-gauge-improve\"><span class=\"ez-toc-section\" id=\"what-can-a-liquid-filled-pressure-gauge-improve\"><\/span>\u0110\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t c\u00f3 d\u1ea7u c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n \u0111i\u1ec1u g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Ch\u1ea5t l\u1ecfng b\u00ean trong v\u1ecf \u0111\u1ed3ng h\u1ed3 \u0111o c\u00f3 t\u00e1c d\u1ee5ng gi\u1ea3m ch\u1ea5n, l\u00e0m ch\u1eadm chuy\u1ec3n \u0111\u1ed9ng nhanh c\u1ee7a kim ch\u1ec9 th\u1ecb. N\u00f3 c\u0169ng b\u00f4i tr\u01a1n c\u01a1 c\u1ea5u b\u00ean trong, gi\u00fap gi\u1ea3m m\u00e0i m\u00f2n v\u00e0 gi\u1ea3m thi\u1ec3u s\u1ef1 ng\u01b0ng t\u1ee5 ho\u1eb7c m\u1edd s\u01b0\u01a1ng tr\u00ean m\u1eb7t k\u00ednh \u0111\u1ed3ng h\u1ed3.<\/p>\n\n\n\n<p>Glycerin th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng trong m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p th\u00f4ng th\u01b0\u1eddng. D\u1ea7u silicone c\u00f3 th\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi \u1ee9ng d\u1ee5ng nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, ngo\u00e0i tr\u1eddi ho\u1eb7c c\u00f3 d\u1ea3i nhi\u1ec7t \u0111\u1ed9 r\u1ed9ng. Ch\u1ea5t l\u1ecfng c\u00f3 \u0111\u1ed9 nh\u1edbt cao th\u01b0\u1eddng gi\u1ea3m ch\u1ea5n m\u1ea1nh h\u01a1n nh\u01b0ng c\u0169ng c\u00f3 th\u1ec3 l\u00e0m kim ph\u1ea3n h\u1ed3i ch\u1eadm, v\u00ec v\u1eady \u0111\u1ed9 nh\u1edbt cao h\u01a1n kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng t\u1ed1t h\u01a1n.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"683\" data-id=\"5381\" src=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/07\/Liquid-filled-pressure-gauge-reducing-pipeline-vibration-and-pointer-fluctuation-1024x683.png\" alt=\"\u0110\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t ch\u1ee9a ch\u1ea5t l\u1ecfng gi\u00fap gi\u1ea3m rung \u0111\u1ed9ng \u0111\u01b0\u1eddng \u1ed1ng v\u00e0 dao \u0111\u1ed9ng kim ch\u1ec9 th\u1ecb.\" class=\"wp-image-5381\" srcset=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/07\/Liquid-filled-pressure-gauge-reducing-pipeline-vibration-and-pointer-fluctuation-1024x683.png 1024w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/07\/Liquid-filled-pressure-gauge-reducing-pipeline-vibration-and-pointer-fluctuation-300x200.png 300w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/07\/Liquid-filled-pressure-gauge-reducing-pipeline-vibration-and-pointer-fluctuation-768x512.png 768w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/07\/Liquid-filled-pressure-gauge-reducing-pipeline-vibration-and-pointer-fluctuation-18x12.png 18w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/07\/Liquid-filled-pressure-gauge-reducing-pipeline-vibration-and-pointer-fluctuation-600x400.png 600w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/07\/Liquid-filled-pressure-gauge-reducing-pipeline-vibration-and-pointer-fluctuation.png 1536w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-what-if-the-pointer-still-vibrates-after-switching-to-a-liquid-filled-gauge\"><span class=\"ez-toc-section\" id=\"what-if-the-pointer-still-vibrates-after-switching-to-a-liquid-filled-gauge\"><\/span>N\u1ebfu kim v\u1eabn rung sau khi chuy\u1ec3n sang \u0111\u1ed3ng h\u1ed3 c\u00f3 d\u1ea7u th\u00ec sao?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>N\u1ebfu kim v\u1eabn rung r\u00f5 r\u1ec7t sau khi l\u1eafp \u0111\u1ed3ng h\u1ed3 c\u00f3 d\u1ea7u, h\u00e3y c\u00e2n nh\u1eafc c\u00e1c b\u01b0\u1edbc sau:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Ki\u1ec3m tra xem ph\u1ea1m vi \u00e1p su\u1ea5t \u0111\u00e3 ch\u1ecdn c\u00f3 ph\u00f9 h\u1ee3p hay kh\u00f4ng.<\/li>\n\n\n\n<li>L\u1eafp b\u1ed9 gi\u1ea3m xung \u00e1p su\u1ea5t (pressure snubber) ho\u1eb7c thi\u1ebft b\u1ecb h\u1ea1n ch\u1ebf l\u01b0u l\u01b0\u1ee3ng.<\/li>\n\n\n\n<li>Di chuy\u1ec3n \u0111\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t ra xa ngu\u1ed3n rung ch\u00ednh.<\/li>\n\n\n\n<li>Ki\u1ec3m tra h\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng \u1ed1ng c\u00f3 x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng b\u00faa n\u01b0\u1edbc hay kh\u00f4ng.<\/li>\n\n\n\n<li>\u0110\u00e1nh gi\u00e1 l\u1ea1i \u0111\u1ed9 nh\u1edbt c\u1ee7a ch\u1ea5t l\u1ecfng d\u00f9ng \u0111\u1ec3 ch\u00e2m \u0111\u1ea7y v\u00e0 c\u1ea5u t\u1ea1o c\u1ee7a \u0111\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t.<\/li>\n<\/ol>\n\n\n\n<p>Vi\u1ec7c \u0111\u1ed5 \u0111\u1ea7y ch\u1ea5t l\u1ecfng ch\u1ee7 y\u1ebfu gi\u00fap b\u1ea3o v\u1ec7 c\u01a1 c\u1ea5u b\u00ean trong c\u1ee7a \u0111\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t. N\u00f3 kh\u00f4ng th\u1ec3 thay th\u1ebf vi\u1ec7c ki\u1ec3m so\u00e1t \u00e1p su\u1ea5t ch\u00ednh x\u00e1c trong h\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng \u1ed1ng.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/07\/ChatGPT-Image-2026\u5e747\u670822\u65e5-\u4e0b\u534806_35_19-1024x768.png\" alt=\"\" class=\"wp-image-5380\" srcset=\"\" sizes=\"(max-width: 1024px) 100vw, 1024px\" data-srcset=\"\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-international-standards-references\"><span class=\"ez-toc-section\" id=\"international-standards-references\"><\/span>T\u00e0i li\u1ec7u 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 d\u00f9ng l\u00e0m t\u00e0i li\u1ec7u tham kh\u1ea3o \u0111\u1ec3 l\u1ef1a ch\u1ecdn, l\u1eafp \u0111\u1eb7t ho\u1eb7c ki\u1ec3m \u0111\u1ecbnh \u0111\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t cho \u1ee9ng d\u1ee5ng n\u00e0y:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ti\u00eau chu\u1ea9n EN 837-1:<\/strong> Ti\u00eau chu\u1ea9n n\u00e0y \u00e1p d\u1ee5ng cho \u0111\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t c\u01a1 kh\u00ed ki\u1ec3u \u1ed1ng Bourdon v\u00e0 bao g\u1ed3m c\u00e1c th\u00f4ng s\u1ed1 v\u1ec1 k\u00edch th\u01b0\u1edbc, \u0111\u1ed9 ch\u00ednh x\u00e1c, \u0111\u1ed9 b\u1ec1n v\u00e0 th\u1eed nghi\u1ec7m. Ph\u1ea1m vi \u00e1p d\u1ee5ng c\u0169ng bao g\u1ed3m c\u1ea3 \u0111\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t ch\u1ee9a ch\u1ea5t l\u1ecfng.<\/li>\n\n\n\n<li><strong>ASME B40.100-2022:<\/strong> T\u00e0i li\u1ec7u n\u00e0y \u0111\u1ec1 c\u1eadp \u0111\u1ebfn s\u1ef1 an to\u00e0n, c\u1ea5u t\u1ea1o, l\u1eafp \u0111\u1eb7t v\u00e0 ki\u1ec3m tra c\u00e1c lo\u1ea1i \u0111\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t v\u00e0 ph\u1ee5 ki\u1ec7n. N\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m t\u00e0i li\u1ec7u tham kh\u1ea3o khi l\u1ef1a ch\u1ecdn v\u00e0 \u0111\u00e1nh gi\u00e1 c\u00e1c lo\u1ea1i \u0111\u1ed3ng h\u1ed3 \u0111o cho m\u00f4i tr\u01b0\u1eddng rung \u0111\u1ed9ng.<\/li>\n<\/ul>\n\n\n\n<p><strong>Ghi ch\u00fa v\u1ec1 ti\u00eau chu\u1ea9n:<\/strong> Ph\u1ea1m vi \u00e1p d\u1ee5ng, phi\u00ean b\u1ea3n v\u00e0 c\u00e1c t\u00e0i li\u1ec7u ch\u1ee9ng nh\u1eadn c\u1ea7n \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn 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 s\u1eafm. Vi\u1ec7c tr\u00edch d\u1eabn m\u1ed9t ti\u00eau chu\u1ea9n kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 s\u1ea3n ph\u1ea9m t\u1ef1 \u0111\u1ed9ng \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn, c\u0169ng kh\u00f4ng thay th\u1ebf vi\u1ec7c x\u00e1c nh\u1eadn c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1ed1i v\u1edbi m\u1eabu s\u1ea3n ph\u1ea9m \u0111\u00e3 ch\u1ecdn.<\/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-does-pointer-vibration-mean-the-pressure-gauge-is-broken\">Vi\u1ec7c kim ch\u1ec9 th\u1ecb rung c\u00f3 ngh\u0129a l\u00e0 \u0111\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t b\u1ecb h\u1ecfng kh\u00f4ng?<\/h3>\n\n\n\n<p>Kh\u00f4ng nh\u1ea5t thi\u1ebft. S\u1ef1 rung \u0111\u1ed9ng c\u1ee7a thi\u1ebft b\u1ecb ho\u1eb7c s\u1ef1 dao \u0111\u1ed9ng \u00e1p su\u1ea5t c\u0169ng c\u00f3 th\u1ec3 khi\u1ebfn kim ch\u1ec9 th\u1ecb rung. Tuy nhi\u00ean, n\u1ebfu kim ch\u1ec9 th\u1ecb kh\u00f4ng tr\u1edf v\u1ec1 v\u1ecb tr\u00ed s\u1ed1 0 sau khi t\u1eaft m\u00e1y, ch\u1ec9 s\u1ed1 hi\u1ec3n th\u1ecb b\u1ecb l\u1ec7ch r\u00f5 r\u1ec7t ho\u1eb7c kim ch\u1ec9 th\u1ecb b\u1ecb k\u1eb9t, th\u00ec c\u1ea7n ph\u1ea3i ki\u1ec3m tra \u0111\u1ed3ng h\u1ed3 \u0111o.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-can-i-convert-a-dry-pressure-gauge-into-a-liquid-filled-gauge-myself\">T\u00f4i c\u00f3 th\u1ec3 t\u1ef1 chuy\u1ec3n \u0111\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t kh\u00f4 th\u00e0nh lo\u1ea1i c\u00f3 d\u1ea7u kh\u00f4ng?<\/h3>\n\n\n\n<p>Kh\u00f4ng n\u00ean. \u0110\u1ed9 k\u00edn c\u1ee7a v\u1ecf, l\u01b0\u1ee3ng ch\u1ea5t l\u1ecfng, \u0111\u1ed9 nh\u1edbt v\u00e0 k\u1ebft c\u1ea5u b\u00f9 \u00e1p \u0111\u1ec1u c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn k\u1ebft qu\u1ea3 \u0111o. H\u00e3y ch\u1ecdn m\u1eabu c\u00f3 d\u1ea7u \u0111\u01b0\u1ee3c nh\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft k\u1ebf v\u00e0 cung c\u1ea5p.<\/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>Khi kim \u0111\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t rung li\u00ean t\u1ee5c, tr\u01b0\u1edbc ti\u00ean h\u00e3y x\u00e1c \u0111\u1ecbnh nguy\u00ean nh\u00e2n l\u00e0 rung c\u01a1 h\u1ecdc, xung \u00e1p su\u1ea5t, d\u1ea3i \u0111o kh\u00f4ng ph\u00f9 h\u1ee3p hay b\u00faa n\u01b0\u1edbc. Trong m\u00f4i tr\u01b0\u1eddng rung th\u00f4ng th\u01b0\u1eddng, \u0111\u1ed3ng h\u1ed3 c\u00f3 d\u1ea7u c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng \u0111\u1ecdc v\u00e0 \u0111\u1ed9 b\u1ec1n. N\u1ebfu xung \u00e1p nghi\u00eam tr\u1ecdng, c\u00f3 th\u1ec3 c\u1ea7n l\u1eafp th\u00eam b\u1ed9 gi\u1ea3m xung ho\u1eb7c thay \u0111\u1ed5i v\u1ecb tr\u00ed l\u1eafp \u0111\u1eb7t.<\/p>\n\n\n\n<p><strong>B\u1ea1n ch\u01b0a ch\u1eafc n\u00ean d\u00f9ng glycerin, d\u1ea7u silicone hay b\u1ed9 gi\u1ea3m xung \u00e1p su\u1ea5t?<\/strong> H\u00e3y g\u1eedi cho SJ Gauge th\u00f4ng tin v\u1ec1 d\u1ea3i \u00e1p su\u1ea5t, lo\u1ea1i thi\u1ebft b\u1ecb v\u00e0 \u0111i\u1ec1u ki\u1ec7n rung \u0111\u1ed9ng. Nh\u00f3m c\u1ee7a ch\u00fang t\u00f4i s\u1ebd gi\u00fap b\u1ea1n \u0111\u00e1nh gi\u00e1 c\u1ea5u h\u00ecnh ph\u00f9 h\u1ee3p nh\u1ea5t.<\/p>\n\n\n\n<p>(<strong>\u0110\u1ecdc th\u00eam:<\/strong> <a href=\"https:\/\/www.sj-gauge.com\/vi\/liquid-filled-gauge-troubleshooting\/\">C\u1ea7n l\u00e0m g\u00ec khi \u0111\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t c\u00f3 d\u1ea7u kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng \u0111\u00fang?<\/a>)<\/p>\n\n\n\n<p><a href=\"https:\/\/www.sj-gauge.com\/vi\/author\/sj-gauge\/\"><\/a><\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Kim \u0111\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t b\u1ecb rung th\u01b0\u1eddng do rung \u0111\u1ed9ng thi\u1ebft b\u1ecb, xung \u00e1p su\u1ea5t ho\u1eb7c d\u1ea3i \u0111o kh\u00f4ng ph\u00f9 h\u1ee3p. T\u00ecm hi\u1ec3u \u0111\u1ed3ng h\u1ed3 c\u00f3 d\u1ea7u c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n \u0111i\u1ec1u g\u00ec v\u00e0 c\u1ea7n ki\u1ec3m tra g\u00ec ti\u1ebfp theo.<\/p>","protected":false},"author":2,"featured_media":5378,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[61],"tags":[71],"class_list":["post-5374","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 v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Why Is My Pressure Gauge Pointer Vibrating? | SJ Gauge<\/title>\n<meta name=\"description\" content=\"Learn why pressure gauge pointers vibrate, how liquid-filled gauges reduce vibration, and when to use a snubber or correct water hammer.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.sj-gauge.com\/vi\/pressure-gauge-pointer-vibration\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Why Is My Pressure Gauge Pointer Vibrating? 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