{"id":5457,"date":"2026-07-30T00:44:54","date_gmt":"2026-07-29T16:44:54","guid":{"rendered":"https:\/\/www.sj-gauge.com\/?p=5457"},"modified":"2026-07-30T00:44:55","modified_gmt":"2026-07-29T16:44:55","slug":"ansi-flange-standard","status":"publish","type":"post","link":"https:\/\/www.sj-gauge.com\/ja\/ansi-flange-standard\/","title":{"rendered":"ANSI\uff0fASME\u30d5\u30e9\u30f3\u30b8\u898f\u683c\uff1aClass 150\u306e\u610f\u5473\u3068\u8aad\u307f\u65b9"},"content":{"rendered":"<p><strong>\u8981\u7d04\uff1a<\/strong> \u73fe\u5728\u300cANSI\u30d5\u30e9\u30f3\u30b8\u300d\u3068\u547c\u3070\u308c\u308b\u3082\u306e\u306f\u3001\u901a\u5e38ASME\u898f\u683c\u3001\u547c\u3073\u5f84\u3001\u5727\u529b\u30af\u30e9\u30b9\u3001\u6750\u8cea\u3001\u30d5\u30e9\u30f3\u30b8\u9762\u3001\u5bf8\u6cd5\u7cfb\u5217\u3092\u4e00\u5f0f\u3067\u6307\u5b9a\u3057\u307e\u3059\u3002Class 150\u306f\u5727\u529b\u30af\u30e9\u30b9\u3067\u3042\u308a\u3001\u3059\u3079\u3066\u306e\u6761\u4ef6\u306b\u5171\u901a\u3059\u308b150 psi\u306e\u4f7f\u7528\u5727\u529b\u4e0a\u9650\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p>\u696d\u754c\u3067\u306f\u4eca\u3082\u300cANSI\u30d5\u30e9\u30f3\u30b8\u300d\u3068\u547c\u3070\u308c\u307e\u3059\u304c\u3001NPS 1\/2\uff5eNPS 24\u306e\u7ba1\u30d5\u30e9\u30f3\u30b8\u3068\u30d5\u30e9\u30f3\u30b8\u7d99\u624b\u306f\u4e3b\u306bASME B16.5\u3001\u5927\u53e3\u5f84\u92fc\u88fd\u30d5\u30e9\u30f3\u30b8\u306fASME B16.47\u3067\u898f\u5b9a\u3055\u308c\u307e\u3059\u3002\u6b63\u78ba\u306a\u898f\u683c\u3001\u7248\u3001\u6750\u8cea\u30b0\u30eb\u30fc\u30d7\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u4ed5\u69d8\u3092\u5fc5\u305a\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/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\">\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\/ansi-flange-standard\/#what-does-ansi-class-150-mean\" >ANSI Class 150\u3068\u306f\u4f55\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\/ansi-flange-standard\/#how-to-read-an-asme-flange-specification\" >ASME\u30d5\u30e9\u30f3\u30b8\u4ed5\u69d8\u306e\u8aad\u307f\u65b9<\/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\/ansi-flange-standard\/#common-asme-pressure-classes\" >\u4e3b\u306aASME\u5727\u529b\u30af\u30e9\u30b9<\/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\/ansi-flange-standard\/#common-flange-facings-rf-ff-and-rtj\" >\u4e3b\u306a\u30d5\u30e9\u30f3\u30b8\u9762\uff1aRF\u30fbFF\u30fbRTJ<\/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\/ansi-flange-standard\/#asme-flanges-for-pressure-gauges-and-diaphragm-seals\" >\u5727\u529b\u8a08\u30fb\u30c0\u30a4\u30e4\u30d5\u30e9\u30e0\u30b7\u30fc\u30eb\u7528ASME\u30d5\u30e9\u30f3\u30b8<\/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\/ansi-flange-standard\/#asme-jis-and-dinen-flanges-are-not-automatically-interchangeable\" >ASME\u3001JIS\u3001DIN\uff0fEN\u30d5\u30e9\u30f3\u30b8\u306f\u81ea\u52d5\u7684\u306b\u4e92\u63db\u3067\u306f\u306a\u3044<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.sj-gauge.com\/ja\/ansi-flange-standard\/#asme-flange-selection-checklist\" >ASME\u30d5\u30e9\u30f3\u30b8\u9078\u5b9a\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.sj-gauge.com\/ja\/ansi-flange-standard\/#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-9\" href=\"https:\/\/www.sj-gauge.com\/ja\/ansi-flange-standard\/#conclusion\" >\u307e\u3068\u3081<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\" id=\"h-what-does-ansi-class-150-mean\"><span class=\"ez-toc-section\" id=\"what-does-ansi-class-150-mean\"><\/span>ANSI Class 150\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Class 150\u306fASME\u306e\u5727\u529b\u30af\u30e9\u30b9\u3067\u3059\u3002\u3059\u3079\u3066\u306eClass 150\u30d5\u30e9\u30f3\u30b8\u304c\u6b63\u78ba\u306b150 psi\u306b\u5236\u9650\u3055\u308c\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u8a31\u5bb9\u5727\u529b\u306f\u6750\u8cea\u30b0\u30eb\u30fc\u30d7\u3068\u6e29\u5ea6\u306b\u3088\u308a\u3001\u9069\u7528\u898f\u683c\u306e\u5727\u529b\u2015\u6e29\u5ea6\u5b9a\u683c\u8868\u3067\u6c7a\u307e\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u300cASME B16.5 NPS 2 Class 150 RF\u300d\u306f\u3001\u898f\u683c\u30012\u30a4\u30f3\u30c1\u547c\u3073\u5f84\u3001Class 150\u3001\u30ec\u30a4\u30ba\u30c9\u30d5\u30a7\u30a4\u30b9\uff08RF\uff09\u3092\u793a\u3057\u307e\u3059\u3002\u5b8c\u5168\u306a\u4ed5\u69d8\u3092\u5224\u65ad\u3059\u308b\u306b\u306f\u3001\u6750\u8cea\u30b0\u30ec\u30fc\u30c9\u306a\u3069\u4ed6\u306e\u8868\u793a\u3082\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-how-to-read-an-asme-flange-specification\"><span class=\"ez-toc-section\" id=\"how-to-read-an-asme-flange-specification\"><\/span>ASME\u30d5\u30e9\u30f3\u30b8\u4ed5\u69d8\u306e\u8aad\u307f\u65b9<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u898f\u683c\uff1a<\/strong> ASME B16.5\u3001ASME B16.47\u3001\u307e\u305f\u306f\u6307\u5b9a\u6587\u66f8\u3068\u7248\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u30b5\u30a4\u30ba\uff1a<\/strong> \u56f3\u9762\u306eNPS\u304a\u3088\u3073DN\u8868\u793a\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u5727\u529b\u30af\u30e9\u30b9\uff1a<\/strong> \u6307\u5b9a\u3055\u308c\u305fClass 150\u3001300\u3001400\u3001600\u3001900\u30011500\u30012500\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u30d5\u30e9\u30f3\u30b8\u9762\uff1a<\/strong> RF\u3001FF\u3001RTJ\u306a\u3069\u6307\u5b9a\u306e\u30d5\u30e9\u30f3\u30b8\u9762\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u6750\u8cea\uff1a<\/strong> \u6750\u8cea\u898f\u683c\u3001\u30b0\u30ec\u30fc\u30c9\u3001\u5727\u529b\u2015\u6e29\u5ea6\u30b0\u30eb\u30fc\u30d7\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u5bf8\u6cd5\uff1a<\/strong> \u5916\u5f84\u3001\u30dc\u30eb\u30c8\u4e2d\u5fc3\u5186\u3001\u30dc\u30eb\u30c8\u7a74\u3001\u539a\u3055\u3001\u5185\u5f84\u3001\u30d5\u30e9\u30f3\u30b8\u5f62\u5f0f\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-common-asme-pressure-classes\"><span class=\"ez-toc-section\" id=\"common-asme-pressure-classes\"><\/span>\u4e3b\u306aASME\u5727\u529b\u30af\u30e9\u30b9<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div style=\"overflow-x:auto\"><table style=\"width:100%;border-collapse:collapse;min-width:620px\"><thead><tr><th>\u5727\u529b\u30af\u30e9\u30b9<\/th><th>\u89e3\u91c8<\/th><th>\u9078\u5b9a\u4e0a\u306e\u6ce8\u610f<\/th><\/tr><\/thead><tbody><tr><td>Class 150<\/td><td>\u4e00\u822c\u7523\u696d\u3067\u5e83\u304f\u4f7f\u308f\u308c\u308b\u30af\u30e9\u30b9<\/td><td>\u3059\u3079\u3066\u306e\u6761\u4ef6\u306b\u5171\u901a\u3059\u308b150 psi\u4e0a\u9650\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/td><\/tr><tr><td>Class 300 \/ 600<\/td><td>\u3088\u308a\u9ad8\u3044\u5727\u529b\u30af\u30e9\u30b9\u7cfb\u5217<\/td><td>\u5bf8\u6cd5\u3068\u5727\u529b\u2015\u6e29\u5ea6\u5b9a\u683c\u306fClass 150\u3068\u7570\u306a\u308a\u307e\u3059\u3002<\/td><\/tr><tr><td>Class 900 \/ 1500 \/ 2500<\/td><td>\u9ad8\u5727\u7cfb\u5217<\/td><td>\u6750\u8cea\u3001\u6e29\u5ea6\u3001\u30dc\u30eb\u30c8\u3001\u8a2d\u8a08\u306e\u53b3\u5bc6\u306a\u78ba\u8a8d\u304c\u5fc5\u8981\u3067\u3059\u3002<\/td><\/tr><\/tbody><\/table><\/div>\n\n\n\n<p>\u3053\u306e\u8868\u306f\u30af\u30e9\u30b9\u540d\u79f0\u306e\u8aac\u660e\u3067\u3042\u308a\u3001\u5727\u529b\u5b9a\u683c\u8868\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u6700\u7d42\u9078\u5b9a\u306b\u306fASME\u516c\u5f0f\u306e\u5727\u529b\u2015\u6e29\u5ea6\u8868\u3068\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u8a2d\u8a08\u57fa\u6e96\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-common-flange-facings-rf-ff-and-rtj\"><span class=\"ez-toc-section\" id=\"common-flange-facings-rf-ff-and-rtj\"><\/span>\u4e3b\u306a\u30d5\u30e9\u30f3\u30b8\u9762\uff1aRF\u30fbFF\u30fbRTJ<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>RF\uff0d\u30ec\u30a4\u30ba\u30c9\u30d5\u30a7\u30a4\u30b9\uff1a<\/strong> \u5de5\u696d\u914d\u7ba1\u3067\u4e00\u822c\u7684\u306a\u3001\u76db\u308a\u4e0a\u304c\u3063\u305f\u30ac\u30b9\u30b1\u30c3\u30c8\u63a5\u89e6\u9762\u3002<\/li>\n\n\n\n<li><strong>FF\uff0d\u30d5\u30e9\u30c3\u30c8\u30d5\u30a7\u30a4\u30b9\uff1a<\/strong> \u5168\u9762\u304c\u5e73\u3089\u306a\u63a5\u89e6\u9762\u3067\u3001\u7279\u5b9a\u306e\u92f3\u9244\u88fd\u307e\u305f\u306f\u4f4e\u5fdc\u529b\u63a5\u7d9a\u306b\u7528\u3044\u3089\u308c\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>RTJ\uff0d\u30ea\u30f3\u30b0\u30b8\u30e7\u30a4\u30f3\u30c8\uff1a<\/strong> \u91d1\u5c5e\u30ea\u30f3\u30b0\u30ac\u30b9\u30b1\u30c3\u30c8\u7528\u306e\u6a5f\u68b0\u52a0\u5de5\u6e9d\u3067\u3001\u4e00\u822c\u306b\u9ad8\u5727\u30fb\u9ad8\u6e29\u306e\u53b3\u3057\u3044\u7528\u9014\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u30d5\u30e9\u30f3\u30b8\u9762\u306f\u76f8\u624b\u30d5\u30e9\u30f3\u30b8\u3068\u30ac\u30b9\u30b1\u30c3\u30c8\u8a2d\u8a08\u306b\u5408\u308f\u305b\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u627f\u8a8d\u3055\u308c\u305f\u8a2d\u8a08\u306a\u3057\u306b\u3001\u4e92\u63db\u6027\u306e\u306a\u3044\u9762\u3092\u7de0\u7d50\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-asme-flanges-for-pressure-gauges-and-diaphragm-seals\"><span class=\"ez-toc-section\" id=\"asme-flanges-for-pressure-gauges-and-diaphragm-seals\"><\/span>\u5727\u529b\u8a08\u30fb\u30c0\u30a4\u30e4\u30d5\u30e9\u30e0\u30b7\u30fc\u30eb\u7528ASME\u30d5\u30e9\u30f3\u30b8<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u30d5\u30e9\u30f3\u30b8\u5f0f\u5727\u529b\u8a08\u3084\u4f1d\u9001\u5668\u3067\u306f\u3001\u5727\u529b\u30af\u30e9\u30b9\u306f\u9078\u5b9a\u6761\u4ef6\u306e\u4e00\u90e8\u306b\u3059\u304e\u307e\u305b\u3093\u3002\u6e2c\u5b9a\u30ec\u30f3\u30b8\u3001\u30c0\u30a4\u30e4\u30d5\u30e9\u30e0\u6709\u52b9\u5f84\u3001\u5c01\u5165\u6db2\u3001\u63a5\u6db2\u6750\u8cea\u3001\u30d7\u30ed\u30bb\u30b9\u6e29\u5ea6\u3001\u30ad\u30e3\u30d4\u30e9\u30ea\u9577\u3055\u3001\u30d5\u30e9\u30c3\u30b7\u30f3\u30b0\u63a5\u7d9a\u3001\u53d6\u4ed8\u65b9\u5411\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p>\u4f4e\u5727\u6e2c\u5b9a\u3067\u306f\u5927\u304d\u306a\u30c0\u30a4\u30e4\u30d5\u30e9\u30e0\u9762\u7a4d\u304c\u5fc5\u8981\u306b\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u8150\u98df\u6027\u3001\u9ad8\u7c98\u5ea6\u3001\u7d50\u6676\u5316\u3001\u30b5\u30cb\u30bf\u30ea\u30fc\u7528\u9014\u3067\u306f\u3001\u7279\u6b8a\u5408\u91d1\u3001\u30b3\u30fc\u30c6\u30a3\u30f3\u30b0\u3001\u30e9\u30a4\u30cb\u30f3\u30b0\u3001\u5ef6\u9577\u30c0\u30a4\u30e4\u30d5\u30e9\u30e0\u304c\u5fc5\u8981\u306a\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-asme-jis-and-din-en-flanges-are-not-automatically-interchangeable\"><span class=\"ez-toc-section\" id=\"asme-jis-and-dinen-flanges-are-not-automatically-interchangeable\"><\/span>ASME\u3001JIS\u3001DIN\uff0fEN\u30d5\u30e9\u30f3\u30b8\u306f\u81ea\u52d5\u7684\u306b\u4e92\u63db\u3067\u306f\u306a\u3044<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>ASME\u306f\u5727\u529b\u30af\u30e9\u30b9\u3001JIS\u306fK\u30af\u30e9\u30b9\u3001DIN\uff0fEN\u306fPN\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u547c\u3073\u5f84\u304c\u8fd1\u304f\u3066\u3082\u3001\u5916\u5f84\u3001\u30dc\u30eb\u30c8\u914d\u7f6e\u3001\u30d5\u30e9\u30f3\u30b8\u9762\u3001\u5727\u529b\u2015\u6e29\u5ea6\u5b9a\u683c\u304c\u4e00\u81f4\u3059\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002\u30a2\u30c0\u30d7\u30bf\u4f7f\u7528\u524d\u306b\u627f\u8a8d\u56f3\u9762\u3092\u6bd4\u8f03\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-asme-flange-selection-checklist\"><span class=\"ez-toc-section\" id=\"asme-flange-selection-checklist\"><\/span>ASME\u30d5\u30e9\u30f3\u30b8\u9078\u5b9a\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6b63\u78ba\u306a\u898f\u683c\u3001\u7248\u3001\u30d5\u30e9\u30f3\u30b8\u5f62\u5f0f<\/li>\n\n\n\n<li>NPS\u307e\u305f\u306fDN\u8868\u793a\u3068\u5727\u529b\u30af\u30e9\u30b9<\/li>\n\n\n\n<li>\u30d5\u30e9\u30f3\u30b8\u9762\u3068\u30ac\u30b9\u30b1\u30c3\u30c8\u8a2d\u8a08<\/li>\n\n\n\n<li>\u6750\u8cea\u30b0\u30ec\u30fc\u30c9\u3068\u8010\u98df\u9069\u5408\u6027<\/li>\n\n\n\n<li>\u8a2d\u8a08\u5727\u529b\u3001\u8a2d\u8a08\u6e29\u5ea6\u3001\u5727\u529b\u30b9\u30d1\u30a4\u30af<\/li>\n\n\n\n<li>\u30dc\u30eb\u30c8\u7a74\u914d\u7f6e\u3001\u30dc\u30eb\u30c8\u6750\u8cea\u3001\u627f\u8a8d\u56f3\u9762<\/li>\n\n\n\n<li>\u8a08\u5668\u30ec\u30f3\u30b8\u3001\u30c0\u30a4\u30e4\u30d5\u30e9\u30e0\u5f84\u3001\u53d6\u4ed8\u69cb\u6210<\/li>\n<\/ul>\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-does-ansi-class-150-mean-150-psi\">ANSI Class 150\u306f150 psi\u3092\u610f\u5473\u3057\u307e\u3059\u304b\uff1f<\/h3>\n\n\n\n<p>\u3044\u3044\u3048\u3002Class 150\u306f\u30af\u30e9\u30b9\u8868\u793a\u3067\u3059\u3002\u8a31\u5bb9\u5727\u529b\u306f\u6750\u8cea\u3068\u6e29\u5ea6\u3067\u6c7a\u307e\u308b\u305f\u3081\u3001\u8a72\u5f53\u3059\u308bASME\u5727\u529b\u2015\u6e29\u5ea6\u8868\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-are-ansi-and-asme-flange-standards-the-same\">ANSI\u3068ASME\u306e\u30d5\u30e9\u30f3\u30b8\u898f\u683c\u306f\u540c\u3058\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p>\u300cANSI\u30d5\u30e9\u30f3\u30b8\u300d\u306f\u4eca\u3082\u4e00\u822c\u7684\u306a\u5e02\u5834\u7528\u8a9e\u3067\u3059\u304c\u3001\u73fe\u5728\u306e\u8981\u6c42\u4e8b\u9805\u306f\u901a\u5e38ASME B16.5\u3084B16.47\u306a\u3069\u3092\u53c2\u7167\u3057\u307e\u3059\u3002\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u4ed5\u69d8\u306b\u8a18\u8f09\u3055\u308c\u305f\u6b63\u78ba\u306a\u6587\u66f8\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-can-a-class-150-flange-connect-directly-to-a-jis-10k-flange\">Class 150\u30d5\u30e9\u30f3\u30b8\u3092JIS 10K\u30d5\u30e9\u30f3\u30b8\u306b\u76f4\u63a5\u63a5\u7d9a\u3067\u304d\u307e\u3059\u304b\uff1f<\/h3>\n\n\n\n<p>\u63a5\u7d9a\u3067\u304d\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002\u5bf8\u6cd5\u3001\u30dc\u30eb\u30c8\u914d\u7f6e\u3001\u30d5\u30e9\u30f3\u30b8\u9762\u3001\u5b9a\u683c\u304c\u7570\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u627f\u8a8d\u56f3\u9762\u3092\u6bd4\u8f03\u3057\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u9069\u5207\u306b\u8a2d\u8a08\u3055\u308c\u305f\u30a2\u30c0\u30d7\u30bf\u3092\u4f7f\u7528\u3057\u3066\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>ANSI\uff0fASME\u30d5\u30e9\u30f3\u30b8\u3092\u6b63\u3057\u304f\u6307\u5b9a\u3059\u308b\u306b\u306f\u3001\u898f\u683c\u3001\u30b5\u30a4\u30ba\u3001\u5727\u529b\u30af\u30e9\u30b9\u3001\u30d5\u30e9\u30f3\u30b8\u9762\u3001\u6750\u8cea\u3001\u4f7f\u7528\u6761\u4ef6\u3092\u4e00\u5f0f\u3067\u78ba\u8a8d\u3057\u307e\u3059\u3002SJ Gauge\u306f\u56f3\u9762\u3092\u78ba\u8a8d\u3057\u3001\u9069\u5408\u3059\u308b\u5727\u529b\u8a08\u3001\u30c0\u30a4\u30e4\u30d5\u30e9\u30e0\u30b7\u30fc\u30eb\u3001\u30ea\u30e2\u30fc\u30c8\u30b7\u30fc\u30eb\u69cb\u6210\u3092\u63d0\u6848\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>ASME\u30d5\u30e9\u30f3\u30b8\u306e\u78ba\u8a8d\u3084\u8a08\u5668\u9078\u5b9a\u304c\u5fc5\u8981\u3067\u3059\u304b\uff1f<\/strong> <a href=\"https:\/\/www.sj-gauge.com\/ja\/contact-us\/\">SJ Gauge\u3078\u304a\u554f\u3044\u5408\u308f\u305b<\/a> \u30d5\u30e9\u30f3\u30b8\u8868\u793a\u3001\u56f3\u9762\u3001\u30d7\u30ed\u30bb\u30b9\u6d41\u4f53\u3001\u5727\u529b\u3001\u6e29\u5ea6\u3092\u3054\u63d0\u793a\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-standards-reference\">\u898f\u683c\u53c2\u8003\u8cc7\u6599<\/h3>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u6700\u65b0\u7248\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\uff1a <a href=\"https:\/\/www.asme.org\/codes-standards\/find-codes-standards\/b16-5-pipe-flanges-flanged-fittings-nps-1-2-nps-24-metric-inch-standard\" target=\"_blank\" rel=\"noopener\">ASME B16.5<\/a> \u304a\u3088\u3073 <a href=\"https:\/\/www.asme.org\/codes-standards\/find-codes-standards\/b16-47-large-diameter-steel-flanges-nps-26-nps-60-metric-inch-standard\" target=\"_blank\" rel=\"noopener\">ASME B16.47<\/a>\u304a\u3088\u3073\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u4ed5\u69d8\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u5b8c\u5168\u306a\u8981\u4ef6\u3084\u5b9a\u683c\u8868\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001\u516c\u5f0f\u898f\u683c\u3092\u8cfc\u5165\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>","protected":false},"excerpt":{"rendered":"<p>Summary: An \u201cANSI flange\u201d is usually specified today by an ASME standard, nominal pipe size, pressure class, material, facing and dimensional pattern. Class 150 is a pressure-class designation\u2014not a universal 150 psi working-pressure limit. Industry still commonly says \u201cANSI flange,\u201d but ASME B16.5 is the principal standard for pipe flanges and flanged fittings from NPS 1\/2 through NPS 24. Large-diameter steel flanges are addressed by ASME B16.47. Always confirm the exact standard, edition, material group and project specification. What Does ANSI Class 150 Mean? Class 150 identifies one ASME pressure class. It does not mean that every Class 150 flange is limited to exactly 150 psi. Allowable pressure varies with [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":4245,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[61],"tags":[],"class_list":["post-5457","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge"],"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>ANSI\/ASME Flange Standards Explained: What Class 150 Means - SJ Gauge | Pressure Gauges, Thermometers &amp; Pressure Sensors<\/title>\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\/ansi-flange-standard\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ANSI\/ASME Flange Standards Explained: What Class 150 Means\" \/>\n<meta property=\"og:description\" content=\"Summary: An \u201cANSI flange\u201d is usually specified today by an ASME standard, nominal pipe size, pressure class, material, facing and dimensional pattern. Class 150 is a pressure-class designation\u2014not a universal 150 psi working-pressure limit. Industry still commonly says \u201cANSI flange,\u201d but ASME B16.5 is the principal standard for pipe flanges and flanged fittings from NPS 1\/2 through NPS 24. Large-diameter steel flanges are addressed by ASME B16.47. Always confirm the exact standard, edition, material group and project specification. What Does ANSI Class 150 Mean? Class 150 identifies one ASME pressure class. It does not mean that every Class 150 flange is limited to exactly 150 psi. Allowable pressure varies with [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.sj-gauge.com\/ja\/ansi-flange-standard\/\" \/>\n<meta property=\"og:site_name\" content=\"SJ Gauge | Pressure Gauges, Thermometers &amp; Pressure Sensors\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-29T16:44:54+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-29T16:44:55+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/05\/05-1_SJ_bottom_mount_with_flange_pressure_gauge_EN.png\" \/>\n\t<meta property=\"og:image:width\" content=\"200\" \/>\n\t<meta property=\"og:image:height\" content=\"200\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"SJ Gauge\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u57f7\u7b46\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"SJ Gauge\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593\" \/>\n\t<meta name=\"twitter:data2\" content=\"4\u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/ansi-flange-standard\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/ansi-flange-standard\\\/\"},\"author\":{\"name\":\"SJ Gauge\",\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/#\\\/schema\\\/person\\\/cbc9e642e49a53b18b3eb832486bd52c\"},\"headline\":\"ANSI\\\/ASME Flange Standards Explained: What Class 150 Means\",\"datePublished\":\"2026-07-29T16:44:54+00:00\",\"dateModified\":\"2026-07-29T16:44:55+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/ansi-flange-standard\\\/\"},\"wordCount\":733,\"publisher\":{\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/ansi-flange-standard\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.sj-gauge.com\\\/wp-content\\\/uploads\\\/2025\\\/05\\\/05-1_SJ_bottom_mount_with_flange_pressure_gauge_EN.png\",\"articleSection\":[\"Knowledge\"],\"inLanguage\":\"ja\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/ansi-flange-standard\\\/\",\"url\":\"https:\\\/\\\/www.sj-gauge.com\\\/ansi-flange-standard\\\/\",\"name\":\"ANSI\\\/ASME Flange Standards Explained: What Class 150 Means - SJ Gauge | Pressure Gauges, Thermometers &amp; Pressure Sensors\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/ansi-flange-standard\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/ansi-flange-standard\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.sj-gauge.com\\\/wp-content\\\/uploads\\\/2025\\\/05\\\/05-1_SJ_bottom_mount_with_flange_pressure_gauge_EN.png\",\"datePublished\":\"2026-07-29T16:44:54+00:00\",\"dateModified\":\"2026-07-29T16:44:55+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/ansi-flange-standard\\\/#breadcrumb\"},\"inLanguage\":\"ja\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.sj-gauge.com\\\/ansi-flange-standard\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/ansi-flange-standard\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.sj-gauge.com\\\/wp-content\\\/uploads\\\/2025\\\/05\\\/05-1_SJ_bottom_mount_with_flange_pressure_gauge_EN.png\",\"contentUrl\":\"https:\\\/\\\/www.sj-gauge.com\\\/wp-content\\\/uploads\\\/2025\\\/05\\\/05-1_SJ_bottom_mount_with_flange_pressure_gauge_EN.png\",\"width\":200,\"height\":200,\"caption\":\"Bottom-mount pressure gauge with flange installation diagram.\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/ansi-flange-standard\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.sj-gauge.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"ANSI\\\/ASME Flange Standards Explained: What Class 150 Means\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.sj-gauge.com\\\/#website\",\"url\":\"https:\\\/\\\/www.sj-gauge.com\\\/\",\"name\":\"SJ Gauge | Pressure Gauges, Thermometers &amp; Pressure Sensors\",\"description\":\"Manufacturer of industrial pressure gauges, pressure sensors, and transmitters. 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Class 150 is a pressure-class designation\u2014not a universal 150 psi working-pressure limit. Industry still commonly says \u201cANSI flange,\u201d but ASME B16.5 is the principal standard for pipe flanges and flanged fittings from NPS 1\/2 through NPS 24. Large-diameter steel flanges are addressed by ASME B16.47. Always confirm the exact standard, edition, material group and project specification. What Does ANSI Class 150 Mean? Class 150 identifies one ASME pressure class. It does not mean that every Class 150 flange is limited to exactly 150 psi. 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