{"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":"2026-09-09T11:18:03","modified_gmt":"2026-09-09T03:18:03","slug":"pressure-gauge-thread-will-not-fit","status":"publish","type":"post","link":"https:\/\/www.sj-gauge.com\/ja\/pressure-gauge-thread-will-not-fit\/","title":{"rendered":"\u540c\u30581\/4\u30a4\u30f3\u30c1\u30cd\u30b8\u306a\u306e\u306b\u3001\u306a\u305c\u5727\u529b\u8a08\u304c\u5408\u308f\u306a\u3044\u306e\u304b\uff1f"},"content":{"rendered":"<p>\u5727\u529b\u8a08\u3068\u914d\u7ba1\u7d99\u624b\u306e\u4e21\u65b9\u306b\u300c1\/4\u30a4\u30f3\u30c1\u300d\u3068\u8868\u793a\u3055\u308c\u3066\u3044\u3066\u3082\u3001\u5fc5\u305a\u3057\u3082\u4e00\u7dd2\u306b\u53d6\u308a\u4ed8\u3051\u3089\u308c\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002\u3053\u306e\u8868\u793a\u306f\u516c\u79f0\u30b5\u30a4\u30ba\u3092\u793a\u3059\u3060\u3051\u3067\u3042\u308a\u3001NPT\u3001G\/BSPP\u3001PT\/R\u306a\u3069\u306e\u306d\u3058\u898f\u683c\u3082\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u63a5\u7d9a\u90e8\u304c1\u30012\u56de\u8ee2\u3057\u304b\u304b\u307f\u5408\u308f\u306a\u3044\u5834\u5408\u3001\u307e\u3059\u307e\u3059\u66f2\u304c\u3063\u3066\u3044\u304f\u5834\u5408\u3001\u307e\u305f\u306f\u7570\u5e38\u306b\u5927\u304d\u306a\u529b\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001\u6c38\u4e45\u7684\u306a\u306d\u3058\u5c71\u306e\u640d\u50b7\u3092\u9632\u3050\u305f\u3081\u306b\u3001immediatety \u3092\u4e2d\u6b62\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\" style=\"width:640px;max-width:100%\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1800\" height=\"1200\" src=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-analog-digital-pressure-gauge-process-connections.webp\" alt=\"SJ analog and digital pressure gauges showing their threaded process connections\" class=\"wp-image-5887\" srcset=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-analog-digital-pressure-gauge-process-connections.webp 1800w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-analog-digital-pressure-gauge-process-connections-300x200.webp 300w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-analog-digital-pressure-gauge-process-connections-1024x683.webp 1024w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-analog-digital-pressure-gauge-process-connections-768x512.webp 768w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-analog-digital-pressure-gauge-process-connections-1536x1024.webp 1536w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-analog-digital-pressure-gauge-process-connections-18x12.webp 18w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-analog-digital-pressure-gauge-process-connections-600x400.webp 600w\" sizes=\"(max-width: 1800px) 100vw, 1800px\" \/><figcaption class=\"wp-element-caption\">SJ\u30a2\u30ca\u30ed\u30b0\u5f0f\u304a\u3088\u3073\u30c7\u30b8\u30bf\u30eb\u5f0f\u5727\u529b\u8a08\u306e\u30d7\u30ed\u30bb\u30b9\u63a5\u7d9a\u3002.<\/figcaption><\/figure>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_88 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\">\u76ee\u6b21<\/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=\"\u76ee\u6b21\u306e\u8868\u793a\/\u975e\u8868\u793a\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">\u30c8\u30b0\u30eb<\/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\/ja\/pressure-gauge-thread-will-not-fit\/#why-wont-threads-of-the-same-size-fit\" >\u540c\u3058\u30b5\u30a4\u30ba\u306e\u30cd\u30b8\u5c71\u304c\u5408\u308f\u306a\u3044\u306e\u306f\u306a\u305c\u3067\u3059\u304b\uff1f<\/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\/ja\/pressure-gauge-thread-will-not-fit\/#what-happens-if-you-force-the-connection\" >\u5f37\u5236\u7684\u306b\u63a5\u7d9a\u3059\u308b\u3068\u3069\u3046\u306a\u308a\u307e\u3059\u304b\uff1f<\/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\/ja\/pressure-gauge-thread-will-not-fit\/#how-to-identify-the-correct-thread\" >\u6b63\u3057\u3044\u7cf8\u306e\u898b\u5206\u3051\u65b9<\/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\/ja\/pressure-gauge-thread-will-not-fit\/#international-standards-reference\" >\u56fd\u969b\u898f\u683c\u306e\u53c2\u8003\u60c5\u5831<\/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\/ja\/pressure-gauge-thread-will-not-fit\/#frequently-asked-questions\" >\u3088\u304f\u3042\u308b\u8cea\u554f<\/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\/ja\/pressure-gauge-thread-will-not-fit\/#conclusion\" >\u307e\u3068\u3081<\/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>\u540c\u3058\u30b5\u30a4\u30ba\u306e\u30cd\u30b8\u5c71\u304c\u5408\u308f\u306a\u3044\u306e\u306f\u306a\u305c\u3067\u3059\u304b\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Co1TP8\u30c8\u30f3\u306e\u7406\u7531\u306b\u306f\u4ee5\u4e0b\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7247\u5074\u306b\u306f\u30c6\u30fc\u30d1\u30fc\u306d\u3058\u304c\u3001\u3082\u3046\u7247\u5074\u306b\u306f\u5e73\u884c\u306d\u3058\u304c\u5207\u3089\u308c\u3066\u3044\u308b\u3002<\/li>\n\n\n\n<li>\u306d\u3058\u30d4\u30c3\u30c1\u307e\u305f\u306f\u306d\u3058\u5f62\u72b6\u304c\u7570\u306a\u308b<\/li>\n\n\n\n<li>\u96c4\u306d\u3058\u3068\u96cc\u306d\u3058\u306e\u516c\u5dee\u306f\u4e92\u63db\u6027\u304c\u3042\u308a\u307e\u305b\u3093<\/li>\n\n\n\n<li>\u53d6\u308a\u4ed8\u3051\u53e3\u306b\u3078\u3053\u307f\u3084\u30d0\u30ea\u304c\u3042\u308b<\/li>\n\n\n\n<li>\u53d6\u308a\u4ed8\u3051\u6642\u306b\u63a5\u7d9a\u90e8\u306e\u4f4d\u7f6e\u304c\u305a\u308c\u3066\u3044\u305f\u305f\u3081\u3001\u306d\u3058\u5c71\u304c\u640d\u50b7\u3057\u305f\u3002<\/li>\n\n\n\n<li>\u65e2\u5b58\u306e\u306d\u3058\u5c71\u5185\u90e8\u306b\u53e4\u3044\u30b7\u30fc\u30e9\u30f3\u30c8\u3084\u8150\u98df\u304c\u6b8b\u3063\u3066\u3044\u308b<\/li>\n<\/ul>\n\n\n\n<p>\u30d1\u30a4\u30d7\u306d\u3058\u306e\u516c\u79f0\u30b5\u30a4\u30ba\u306f\u3001\u76f4\u63a5\u6e2c\u5b9a\u3057\u305f\u5916\u5f84\u3068\u306f\u7570\u306a\u308b\u305f\u3081\u3001\u5358\u7d14\u306b\u5916\u5f84\u3092\u6e2c\u5b9a\u3057\u3066\u300c1\/4\u30a4\u30f3\u30c1\u300d\u3068\u6bd4\u8f03\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u201c<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\" style=\"width:640px;max-width:100%\"><img decoding=\"async\" width=\"1800\" height=\"1200\" src=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-thread-adapters-internal-external-threads.webp\" alt=\"Two metal thread adapters showing internal and external threads\" class=\"wp-image-5888\" srcset=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-thread-adapters-internal-external-threads.webp 1800w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-thread-adapters-internal-external-threads-300x200.webp 300w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-thread-adapters-internal-external-threads-1024x683.webp 1024w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-thread-adapters-internal-external-threads-768x512.webp 768w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-thread-adapters-internal-external-threads-1536x1024.webp 1536w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-thread-adapters-internal-external-threads-18x12.webp 18w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-thread-adapters-internal-external-threads-600x400.webp 600w\" sizes=\"(max-width: 1800px) 100vw, 1800px\" \/><figcaption class=\"wp-element-caption\">\u96cc\u306d\u3058\u3068\u96c4\u306d\u3058\u3001\u304a\u3088\u3073\u5d4c\u5408\u5f62\u72b6\u3092\u793a\u3059\u306d\u3058\u8fbc\u307f\u30a2\u30c0\u30d7\u30bf\u30fc\u3002.<\/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>\u5f37\u5236\u7684\u306b\u63a5\u7d9a\u3059\u308b\u3068\u3069\u3046\u306a\u308a\u307e\u3059\u304b\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u4e92\u63db\u6027\u306e\u306a\u3044\u30b9\u30ec\u30c3\u30c9\u898f\u683c\u3092\u7121\u7406\u3084\u308a\u7d44\u307f\u5408\u308f\u305b\u308b\u3068\u3001\u6b21\u306e\u3088\u3046\u306a\u554f\u984c\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u306d\u3058\u5c71\u306e\u5909\u5f62\u307e\u305f\u306f\u7834\u640d\u3002.<\/li>\n\n\n\n<li>\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc\u306d\u3058\u306e\u713c\u304d\u4ed8\u304d\u307e\u305f\u306f\u56fa\u7740\u3002.<\/li>\n\n\n\n<li>\u53d6\u308a\u5916\u305b\u306a\u3044\u7e4b\u304c\u308a\u3002.<\/li>\n\n\n\n<li>\u52a0\u5727\u5f8c\u306e\u30ac\u30b9\u307e\u305f\u306f\u6db2\u4f53\u306e\u6f0f\u6d29\u3002.<\/li>\n\n\n\n<li>\u5727\u529b\u8a08\u306e\u63a5\u7d9a\u90e8\u306b\u7570\u5e38\u306a\u30c8\u30eb\u30af\u304c\u52a0\u308f\u308a\u307e\u3057\u305f\u3002.<\/li>\n<\/ol>\n\n\n\n<p>immediate\u306e\u6f0f\u6d29\u304c\u306a\u3044\u304b\u3089\u3068\u3044\u3063\u3066\u3001\u305d\u306e\u63a5\u7d9a\u304c\u9577\u671f\u4f7f\u7528\u306b\u5b89\u5168\u3067\u3042\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002.<\/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>\u6b63\u3057\u3044\u7cf8\u306e\u898b\u5206\u3051\u65b9<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u307e\u305a\u3001\u53e4\u3044\u5727\u529b\u8a08\u3001\u6a5f\u5668\u306e\u56f3\u9762\u3001\u307e\u305f\u306f\u7d99\u624b\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u4ed5\u69d8\u8868\u793a\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u8868\u793a\u304c\u306a\u3044\u5834\u5408\u306f\u3001\u5916\u5f84\u3001\u30d4\u30c3\u30c1\u3001\u30c6\u30fc\u30d1\u30fc\u3092\u6e2c\u5b9a\u3057\u3001\u306d\u3058\u30b2\u30fc\u30b8\u3067\u7d50\u679c\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<p>\u6a5f\u5668\u3092\u505c\u6b62\u3067\u304d\u306a\u3044\u5834\u5408\u306f\u3001\u307e\u305a\u8cfc\u5165\u8a18\u9332\u3001\u65e7\u88fd\u54c1\u30e2\u30c7\u30eb\u3001\u304a\u3088\u3073\u5143\u306e\u914d\u7ba1\u56f3\u9762\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30b7\u30b9\u30c6\u30e0\u306b\u5727\u529b\u304c\u304b\u304b\u3063\u3066\u3044\u308b\u9593\u306f\u3001\u6e2c\u5b9a\u306e\u305f\u3081\u306b\u63a5\u7d9a\u90e8\u3092\u7d76\u5bfe\u306b\u5916\u3055\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\" style=\"width:640px;max-width:100%\"><img decoding=\"async\" width=\"1800\" height=\"1200\" src=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-valve-and-threaded-metal-fittings.webp\" alt=\"A T-handle valve and two threaded metal fittings on a wooden surface\" class=\"wp-image-5889\" srcset=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-valve-and-threaded-metal-fittings.webp 1800w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-valve-and-threaded-metal-fittings-300x200.webp 300w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-valve-and-threaded-metal-fittings-1024x683.webp 1024w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-valve-and-threaded-metal-fittings-768x512.webp 768w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-valve-and-threaded-metal-fittings-1536x1024.webp 1536w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-valve-and-threaded-metal-fittings-18x12.webp 18w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/09\/sj-valve-and-threaded-metal-fittings-600x400.webp 600w\" sizes=\"(max-width: 1800px) 100vw, 1800px\" \/><figcaption class=\"wp-element-caption\">\u30d0\u30eb\u30d6\u3068\u306d\u3058\u8fbc\u307f\u7d99\u624b\u3002\u53d6\u308a\u4ed8\u3051\u524d\u306b\u5404\u63a5\u7d9a\u90e8\u306e\u4ed5\u69d8\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/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>\u56fd\u969b\u898f\u683c\u306e\u53c2\u8003\u60c5\u5831<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u3053\u306e\u30c8\u30d4\u30c3\u30af\u306b\u95a2\u9023\u3059\u308b\u9078\u5b9a\u3001\u8a2d\u7f6e\u3001\u307e\u305f\u306f\u691c\u8a3c\u306e\u969b\u306e\u53c2\u8003\u3068\u3057\u3066\u3001\u4ee5\u4e0b\u306e\u898f\u683c\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/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> NPT\u306d\u3058\u306e\u516c\u79f0\u30b5\u30a4\u30ba\u3001\u5916\u5f84\u3001\u30d4\u30c3\u30c1\u3001\u30c6\u30fc\u30d1\u30fc\u306f\u898f\u683c\u3068\u7167\u5408\u3057\u3066\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u300c1\/4\u30a4\u30f3\u30c1\u300d\u3068\u3044\u3046\u8868\u8a18\u3060\u3051\u3067\u306f\u4e0d\u5341\u5206\u3067\u3059\u3002.<\/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> R\u30b7\u30ea\u30fc\u30ba\u306e\u30c6\u30fc\u30d1\u30fc\u7ba1\u306d\u3058\u306f\u3001\u547c\u3073\u5f84\u304c\u540c\u3058\u5834\u5408\u3067\u3082\u3001NPT\u3068\u540c\u3058\u306d\u3058\u5f62\u72b6\u3068\u3057\u3066\u6271\u3046\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002.<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.iso.org\/standard\/33777.html\"><strong>ISO 228-1:2000:<\/strong> G\u5e73\u884c\u306d\u3058\u306e\u5834\u5408\u3001\u306d\u3058\u306e\u5bf8\u6cd5\u3068\u5916\u90e8\u30b7\u30fc\u30eb\u9762\u306e\u691c\u8a3c\u304c\u5fc5\u8981\u3067\u3059\u3002\u306d\u3058\u304c\u4e92\u3044\u306b\u306d\u3058\u8fbc\u3081\u308b\u304b\u3069\u3046\u304b\u3060\u3051\u3067\u4e92\u63db\u6027\u3092\u5224\u65ad\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002.<\/a><\/li>\n<\/ul>\n\n\n\n<p>\u898f\u683c\u306b\u95a2\u3059\u308b\u6ce8\u8a18\uff1a\u6a5f\u5668\u306e\u8a2d\u7f6e\u5834\u6240\u3001\u30d7\u30ed\u30bb\u30b9\u30ea\u30b9\u30af\u3001\u304a\u3088\u3073\u8cfc\u5165\u4ed5\u69d8\u306b\u5fdc\u3058\u3066\u3001\u9069\u7528\u7bc4\u56f2\u3001\u7248\u3001\u304a\u3088\u3073\u8a8d\u8a3c\u6587\u66f8\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u898f\u683c\u3092\u53c2\u7167\u3057\u305f\u304b\u3089\u3068\u3044\u3063\u3066\u3001\u88fd\u54c1\u304c\u81ea\u52d5\u7684\u306b\u8a8d\u8a3c\u3055\u308c\u308b\u308f\u3051\u3067\u306f\u306a\u304f\u3001\u307e\u305f\u3001\u63a5\u7d9a\u30bf\u30a4\u30d7\u306e\u88fd\u9020\u5143\u306b\u3088\u308b\u78ba\u8a8d\u306b\u4ee3\u308f\u308b\u3082\u306e\u3067\u3082\u3042\u308a\u307e\u305b\u3093\u3002.<\/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>\u3088\u304f\u3042\u308b\u8cea\u554f<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\">\u306d\u3058\u5c71\u30b7\u30fc\u30eb\u30c6\u30fc\u30d7\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u3067\u3001\u4e92\u63db\u6027\u306e\u306a\u3044\u306d\u3058\u5c71\u3092\u4fee\u5fa9\u3067\u304d\u307e\u3059\u304b\uff1f<\/h3>\n\n\n\n<p>\u3044\u3044\u3048\u3002\u306d\u3058\u30b7\u30fc\u30eb\u30c6\u30fc\u30d7\u306f\u3001\u4e92\u63db\u6027\u306e\u3042\u308b\u306d\u3058\u5c71\u3092\u30b7\u30fc\u30eb\u3059\u308b\u306e\u306b\u5f79\u7acb\u3064\u3060\u3051\u3067\u3001\u30d4\u30c3\u30c1\u3001\u306d\u3058\u5c71\u306e\u5f62\u72b6\u3001\u30c6\u30fc\u30d1\u30fc\u306e\u9055\u3044\u3092\u4fee\u6b63\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-can-a-fitting-still-be-used-after-it-has-been-forced-together\">\u7121\u7406\u3084\u308a\u62bc\u3057\u8fbc\u3093\u3060\u7d99\u624b\u306f\u3001\u305d\u306e\u5f8c\u3082\u4f7f\u7528\u3067\u304d\u307e\u3059\u304b\uff1f<\/h3>\n\n\n\n<p>\u307e\u305a\u3001\u306d\u3058\u5c71\u306b\u5909\u5f62\u3001\u50b7\u3001\u713c\u304d\u4ed8\u304d\u304c\u306a\u3044\u304b\u70b9\u691c\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u640d\u50b7\u3057\u305f\u7d99\u624b\u306f\u3001\u91cd\u8981\u306a\u5727\u529b\u6a5f\u5668\u306b\u76f4\u63a5\u518d\u5229\u7528\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-conclusion\"><span class=\"ez-toc-section\" id=\"conclusion\"><\/span>\u307e\u3068\u3081<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u540c\u30581\/4\u30a4\u30f3\u30c1\u306e\u547c\u3073\u5f84\u306e\u306d\u3058\u3067\u3082\u3001\u898f\u683c\u304c\u7570\u306a\u308b\u305f\u3081\u53d6\u308a\u4ed8\u3051\u304c\u3067\u304d\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u7570\u5e38\u306a\u62b5\u6297\u3092\u611f\u3058\u305f\u5834\u5408\u306f\u3001\u7121\u7406\u306b\u63a5\u7d9a\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\u307e\u305a\u3001\u306d\u3058\u306e\u898f\u683c\u3001\u30d4\u30c3\u30c1\u3001\u30c6\u30fc\u30d1\u30fc\u3001\u304a\u3088\u3073\u30b7\u30fc\u30eb\u65b9\u6cd5\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<p><strong><a href=\"https:\/\/www.sj-gauge.com\/ja\/contact\/\">\u6a5f\u5668\u306e\u306d\u3058\u898f\u683c\u304c\u78ba\u8a8d\u3067\u304d\u306a\u3044\u5834\u5408\u306f\u3001\u65e7\u88fd\u54c1\u306e\u578b\u756a\u3001\u306d\u3058\u90e8\u306e\u63a5\u5199\u5199\u771f\u3001\u5bf8\u6cd5\u3092SJ Gauge\u307e\u3067\u304a\u9001\u308a\u304f\u3060\u3055\u3044\u3002\u9069\u5207\u306a\u30d7\u30ed\u30bb\u30b9\u63a5\u7d9a\u3092\u7279\u5b9a\u3059\u308b\u304a\u624b\u4f1d\u3044\u3092\u3044\u305f\u3057\u307e\u3059\u3002.<\/a><\/strong><\/p>\n\n\n\n<p><em><a href=\"https:\/\/www.sj-gauge.com\/ja\/pressure-gauge-npt-pt-g-thread\/\">\u3055\u3089\u306b\u8a73\u3057\u304f\u77e5\u308a\u305f\u3044\u5834\u5408\u306f\u3001\u5727\u529b\u8a08\u306eNPT\u3001PT\u3001G\u30cd\u30b8\u306e\u9055\u3044\u3068\u30b7\u30fc\u30eb\u65b9\u6cd5\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/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 crooked, or requires unusually high force, stop immediately to avoid permanent thread damage. Why Won\u2019t Threads of the Same Size Fit? Common reasons include: A pipe thread\u2019s nominal size is also not the same as its directly measured outside diameter, so you cannot simply measure the outside diameter and compare it with \u201c1\/4 inch.\u201d What [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":5887,"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 v28.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Why Won&#039;t a 1\/4-Inch Pressure Gauge Thread\u3002\u306b\u3064\u3044\u3066\uff5cSJ Gauge<\/title>\n<meta name=\"description\" content=\"Both parts are marked 1\/4 inch but engage for only one or two turns? The cause may be different NPT, G or PT thread standards. Never force the connection.\u3002\" \/>\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\/ja\/pressure-gauge-thread-will-not-fit\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Same 1\/4-Inch Thread\u2014Why Won\u2019t the Pressure\u3002\u306b\u3064\u3044\u3066\uff5cSJ Gauge\" \/>\n<meta property=\"og:description\" content=\"Both parts are marked 1\/4 inch but engage for only one or two turns? The cause may be different NPT, G or PT thread standards. 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