{"id":6109,"date":"2026-10-15T23:22:57","date_gmt":"2026-10-15T15:22:57","guid":{"rendered":"https:\/\/www.sj-gauge.com\/?p=6109"},"modified":"2026-10-15T23:22:58","modified_gmt":"2026-10-15T15:22:58","slug":"diaphragm-seal-material-selection","status":"publish","type":"post","link":"https:\/\/www.sj-gauge.com\/ja\/diaphragm-seal-material-selection\/","title":{"rendered":"\u30c0\u30a4\u30e4\u30d5\u30e9\u30e0\u30b7\u30fc\u30eb\u6750\u306e\u9078\u5b9a\uff1a316L\u306f\u5e38\u306b\u9069\u5207\u306a\u6750\u6599\u306a\u306e\u304b\uff1f"},"content":{"rendered":"<p>\u30c0\u30a4\u30e4\u30d5\u30e9\u30e0\u30b7\u30fc\u30eb\u6750\u306e\u9078\u5b9a\u306f\u3001\u5358\u306b\u300c\u30b9\u30c6\u30f3\u30ec\u30b9\u300d\u3068\u3044\u3046\u8a00\u8449\u3060\u3051\u3067\u306f\u306a\u304f\u3001\u4f7f\u7528\u3059\u308b\u6d41\u4f53\u304b\u3089\u59cb\u3081\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u30c0\u30a4\u30e4\u30d5\u30e9\u30e0\u3084\u305d\u306e\u4ed6\u306e\u63a5\u6db2\u90e8\u306f\u3001\u901a\u5e38\u306e\u904b\u8ee2\u6642\u3001\u6e29\u5ea6\u5909\u5316\u3001\u6d17\u6d44\u6642\u3092\u901a\u3057\u3066\u3001\u6d41\u4f53\u306b\u8010\u3048\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u6750\u8cea\u3084\u6750\u8cea\u304c\u5408\u308f\u306a\u3044\u3068\u3001\u8150\u98df\u3001\u8089\u539a\u6e1b\u5c11\u3001\u4e80\u88c2\u3001\u305d\u3057\u3066\u30b7\u30b9\u30c6\u30e0\u5145\u586b\u6d41\u4f53\u306e\u6f0f\u308c\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p>316L\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc\u306f\u591a\u304f\u306e\u7523\u696d\u7528\u9014\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u3042\u3089\u3086\u308b\u9178\u3001\u30a2\u30eb\u30ab\u30ea\u3001\u5869\u5316\u7269\u542b\u6709\u6d41\u4f53\u3001\u307e\u305f\u306f\u9ad8\u6e29\u5316\u5b66\u30d7\u30ed\u30bb\u30b9\u306b\u5bfe\u5fdc\u3067\u304d\u308b\u4e07\u80fd\u306a\u6750\u6599\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u307e\u305a\u306f\u5b8c\u5168\u306a\u904b\u8ee2\u30c7\u30fc\u30bf\u3092\u5165\u624b\u3057\u3001\u305d\u306e\u4e0a\u3067\u6750\u6599\u3068\u69cb\u9020\u3092\u7dcf\u5408\u7684\u306b\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\" style=\"width:640px;max-width:100%;margin:32px auto\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1386\" height=\"1135\" src=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/10\/sj-diaphragm-flange-capillary-detail.png\" alt=\"Flanged seal assembly with capillary and pressure switch in a workshop\" class=\"wp-image-6105\" sizes=\"(max-width: 640px) 100vw, 640px\" loading=\"eager\" style=\"display:block;width:100%;height:auto;aspect-ratio:3\/2;object-fit:cover;object-position:center 25%\" srcset=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/10\/sj-diaphragm-flange-capillary-detail.png 1386w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/10\/sj-diaphragm-flange-capillary-detail-300x246.png 300w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/10\/sj-diaphragm-flange-capillary-detail-1024x839.png 1024w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/10\/sj-diaphragm-flange-capillary-detail-768x629.png 768w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/10\/sj-diaphragm-flange-capillary-detail-15x12.png 15w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/10\/sj-diaphragm-flange-capillary-detail-600x491.png 600w\" \/><figcaption class=\"wp-element-caption\" style=\"text-align:center\">\u56f31\uff5c\u30d5\u30e9\u30f3\u30b8\u4ed8\u304d\u30a2\u30bb\u30f3\u30d6\u30ea\u3068\u30ad\u30e3\u30d4\u30e9\u30ea\u30fc\u30c1\u30e5\u30fc\u30d6\u306f\u3001\u30b7\u30fc\u30eb\u69cb\u9020\u5168\u4f53\u3092\u898b\u76f4\u3059\u5fc5\u8981\u304c\u3042\u308b\u7406\u7531\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u753b\u50cf\u306f\u6750\u6599\u307e\u305f\u306f\u6545\u969c\u306e\u8a3a\u65ad\u3092\u793a\u3059\u3082\u306e\u3067\u306f\u306a\u304f\u3001\u8b58\u5225\u60c5\u5831\u306f\u524a\u9664\u3055\u308c\u3066\u3044\u307e\u3059\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\/diaphragm-seal-material-selection\/#which-parts-need-a-compatibility-check\" >\u3069\u306e\u90e8\u54c1\u306e\u4e92\u63db\u6027\u30c1\u30a7\u30c3\u30af\u304c\u5fc5\u8981\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\/diaphragm-seal-material-selection\/#prepare-these-details-before-selecting-a-material\" >\u6750\u6599\u3092\u9078\u3076\u524d\u306b\u3001\u3053\u308c\u3089\u306e\u8a73\u7d30\u3092\u6e96\u5099\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/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\/diaphragm-seal-material-selection\/#why-temperature-and-cleaning-matter\" >\u6e29\u5ea6\u3068\u6e05\u6383\u304c\u91cd\u8981\u306a\u7406\u7531<\/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\/diaphragm-seal-material-selection\/#are-special-alloys-or-coatings-always-better\" >\u7279\u6b8a\u5408\u91d1\u3084\u30b3\u30fc\u30c6\u30a3\u30f3\u30b0\u306f\u5e38\u306b\u512a\u308c\u3066\u3044\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff1f<\/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\/diaphragm-seal-material-selection\/#check-the-cause-before-replacing-a-corroded-seal\" >\u8150\u98df\u3057\u305f\u30b7\u30fc\u30eb\u3092\u4ea4\u63db\u3059\u308b\u524d\u306b\u539f\u56e0\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044<\/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\/diaphragm-seal-material-selection\/#international-standards-use-the-right-scope\" >\u56fd\u969b\u898f\u683c\uff1a\u9069\u5207\u306a\u9069\u7528\u7bc4\u56f2\u3092\u9078\u629e\u3059\u308b<\/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\/diaphragm-seal-material-selection\/#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-8\" href=\"https:\/\/www.sj-gauge.com\/ja\/diaphragm-seal-material-selection\/#choose-from-the-full-operating-conditions\" >\u5b8c\u5168\u306a\u904b\u7528\u6761\u4ef6\u304b\u3089\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\" id=\"h-which-parts-need-a-compatibility-check\"><span class=\"ez-toc-section\" id=\"which-parts-need-a-compatibility-check\"><\/span>\u3069\u306e\u90e8\u54c1\u306e\u4e92\u63db\u6027\u30c1\u30a7\u30c3\u30af\u304c\u5fc5\u8981\u3067\u3059\u304b\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u8584\u3044\u30c0\u30a4\u30e4\u30d5\u30e9\u30e0\u306f\u3001\u5727\u529b\u3092\u5bc6\u9589\u3055\u308c\u305f\u6e2c\u5b9a\u30b7\u30b9\u30c6\u30e0\u306b\u4f1d\u9054\u3057\u307e\u3059\u3002\u8a2d\u8a08\u306b\u3088\u3063\u3066\u306f\u3001\u4e0b\u90e8\u30cf\u30a6\u30b8\u30f3\u30b0\u3001\u30d7\u30ed\u30bb\u30b9\u63a5\u7d9a\u90e8\u3001\u30ac\u30b9\u30b1\u30c3\u30c8\u3001\u304a\u3088\u3073\u30e9\u30a4\u30cb\u30f3\u30b0\u3084\u30b3\u30fc\u30c6\u30a3\u30f3\u30b0\u3082\u30d7\u30ed\u30bb\u30b9\u6d41\u4f53\u3068\u63a5\u89e6\u3059\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u8010\u8150\u98df\u6027\u30c0\u30a4\u30e4\u30d5\u30e9\u30e0\u3060\u3051\u3067\u306f\u3001\u4e92\u63db\u6027\u306e\u306a\u3044\u4e0b\u90e8\u30cf\u30a6\u30b8\u30f3\u30b0\u3084\u30ac\u30b9\u30b1\u30c3\u30c8\u3092\u4fdd\u8b77\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n<p>\u30d5\u30e9\u30f3\u30b8\u53d6\u308a\u4ed8\u3051\u306e\u5834\u5408\u306f\u3001\u672c\u4f53\u3068\u30c0\u30a4\u30e4\u30d5\u30e9\u30e0\u306e\u6750\u8cea\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002 <a href=\"https:\/\/www.sj-gauge.com\/ja\/product\/dif\/\">DIF\u30d5\u30e9\u30f3\u30b8\u4ed8\u304d\u30c0\u30a4\u30e4\u30d5\u30e9\u30e0\u30b7\u30fc\u30eb<\/a> \u305d\u308c\u305e\u308c\u500b\u5225\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30ab\u30bf\u30ed\u30b0\u306b\u306f\u53ef\u80fd\u306a\u69cb\u6210\u304c\u4e00\u89a7\u8868\u793a\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u6700\u7d42\u7684\u306a\u7d44\u307f\u5408\u308f\u305b\u306f\u3001\u6307\u5b9a\u3055\u308c\u305f\u5a92\u4f53\u3001\u5727\u529b\u3001\u6e29\u5ea6\u306b\u5408\u308f\u305b\u3066\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-prepare-these-details-before-selecting-a-material\"><span class=\"ez-toc-section\" id=\"prepare-these-details-before-selecting-a-material\"><\/span>\u6750\u6599\u3092\u9078\u3076\u524d\u306b\u3001\u3053\u308c\u3089\u306e\u8a73\u7d30\u3092\u6e96\u5099\u3057\u3066\u304f\u3060\u3055\u3044\u3002<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5b8c\u5168\u306a\u5316\u5b66\u540d\u3001\u6df7\u5408\u7269\u306e\u7d44\u6210\u3001\u6fc3\u5ea6\u7bc4\u56f2\u3001\u6c34\u5206\u542b\u6709\u91cf\u3001\u304a\u3088\u3073\u65e2\u77e5\u306e\u4e0d\u7d14\u7269\u3092\u8a18\u8f09\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u300c\u8150\u98df\u6027\u6db2\u4f53\u300d\u3068\u3044\u3063\u305f\u8aac\u660e\u3060\u3051\u3067\u306f\u4e0d\u5341\u5206\u3067\u3059\u3002.<\/li>\n\n\n\n<li>\u901a\u5e38\u6e29\u5ea6\u304a\u3088\u3073\u6700\u9ad8\u6e29\u5ea6\uff08\u8d77\u52d5\u6642\u3001\u505c\u6b62\u6642\u3001\u6e05\u6383\u6642\u3092\u542b\u3080\uff09\u3002.<\/li>\n\n\n\n<li>\u4f5c\u52d5\u5727\u529b\u3001\u6700\u5927\u5727\u529b\u3001\u771f\u7a7a\u6761\u4ef6\u3001\u304a\u3088\u3073\u8a72\u5f53\u3059\u308b\u5834\u5408\u306f\u5727\u529b\u30b5\u30a4\u30af\u30eb\u3002.<\/li>\n\n\n\n<li>\u56fa\u4f53\u7c92\u5b50\u3001\u7d50\u6676\u5316\u3001\u7c98\u5ea6\u3001\u304a\u3088\u3073\u30bb\u30f3\u30b7\u30f3\u30b0\u9762\u306b\u304a\u3051\u308b\u6469\u8017\u306e\u53ef\u80fd\u6027\u3002.<\/li>\n\n\n\n<li>\u6d17\u6d44\u5264\u306e\u7a2e\u985e\u3001\u6fc3\u5ea6\u3001\u6e29\u5ea6\u3001\u63a5\u89e6\u6642\u9593\u3002\u307e\u305f\u3001\u98df\u54c1\u3001\u885b\u751f\u3001\u6587\u66f8\u306b\u95a2\u3059\u308b\u8981\u4ef6\u3082\u7279\u5b9a\u3059\u308b\u3002.<\/li>\n<\/ul>\n\n\n\n<p>\u5165\u624b\u53ef\u80fd\u306a\u5834\u5408\u306f\u3001\u5b89\u5168\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u3068\u4f7f\u7528\u5c65\u6b74\u3092\u63d0\u4f9b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u3089\u306f\u7528\u9014\u3092\u660e\u78ba\u306b\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u304c\u3001\u5b89\u5168\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u3060\u3051\u3067\u306f\u8584\u578b\u30c0\u30a4\u30e4\u30d5\u30e9\u30e0\u306e\u9577\u671f\u7684\u306a\u6750\u6599\u9069\u5408\u6027\u3092\u8a3c\u660e\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-why-temperature-and-cleaning-matter\"><span class=\"ez-toc-section\" id=\"why-temperature-and-cleaning-matter\"><\/span>\u6e29\u5ea6\u3068\u6e05\u6383\u304c\u91cd\u8981\u306a\u7406\u7531<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u5ba4\u6e29\u3067\u306f\u554f\u984c\u306a\u304f\u6a5f\u80fd\u3059\u308b\u6750\u6599\u3067\u3082\u3001\u52a0\u71b1\u3059\u308b\u3068\u8150\u98df\u901f\u5ea6\u304c\u901f\u304f\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u6fc3\u5ea6\u3001\u4e0d\u7d14\u7269\u3001\u307e\u305f\u306f\u66b4\u9732\u6761\u4ef6\u306e\u5909\u5316\u306b\u3088\u3063\u3066\u3082\u8150\u98df\u30e1\u30ab\u30cb\u30ba\u30e0\u306f\u5909\u5316\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u5ba4\u6e29\u3067\u306e\u9069\u5408\u6027\u30c1\u30e3\u30fc\u30c8\u306f\u3042\u304f\u307e\u3067\u51fa\u767a\u70b9\u306b\u904e\u304e\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n<p>\u88fd\u9020\u5a92\u4f53\u3068\u6d17\u6d44\u30b5\u30a4\u30af\u30eb\u4e21\u65b9\u3092\u8a55\u4fa1\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u4f8b\u3048\u3070\u3001\u7a4f\u3084\u304b\u306a\u30d7\u30ed\u30bb\u30b9\u6db2\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3067\u3082\u3001\u3088\u308a\u9ad8\u6e29\u307e\u305f\u306f\u9ad8\u6fc3\u5ea6\u306e\u6d17\u6d44\u6db2\u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u6027\u306f\u5909\u308f\u308a\u307e\u305b\u3093\u3002\u885b\u751f\u7684\u306a\u7528\u9014\u306b\u304a\u3044\u3066\u306f\u3001\u8868\u9762\u4ed5\u4e0a\u3052\u3001\u63a5\u7d9a\u8a2d\u8a08\u3001\u30ac\u30b9\u30b1\u30c3\u30c8\u3001\u6d17\u6d44\u6027\u3082\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<p>\u885b\u751f\u7684\u306a\u30d7\u30ed\u30bb\u30b9\u63a5\u7d9a\u306e\u5834\u5408\u3001 <a href=\"https:\/\/www.sj-gauge.com\/ja\/product\/dis-c\/\">DIS-C\u30b5\u30cb\u30bf\u30ea\u30fc\u30c8\u30e9\u30a4\u30af\u30e9\u30f3\u30d7\u30c0\u30a4\u30e4\u30d5\u30e9\u30e0\u30b7\u30fc\u30eb<\/a> \u3053\u308c\u306f\u3001\u885b\u751f\u7684\u306a\u7528\u9014\u306b\u304a\u3051\u308b\u30af\u30e9\u30f3\u30d7\u63a5\u7d9a\u3092\u8a55\u4fa1\u3059\u308b\u305f\u3081\u306e\u6709\u7528\u306a\u51fa\u767a\u70b9\u3068\u306a\u308a\u307e\u3059\u3002\u885b\u751f\u7684\u306a\u63a5\u7d9a\u90e8\u3084316L\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u9078\u629e\u3057\u305f\u304b\u3089\u3068\u3044\u3063\u3066\u3001\u5fc5\u305a\u3057\u3082\u3059\u3079\u3066\u306e\u6d17\u6d44\u30b5\u30a4\u30af\u30eb\u306b\u9069\u3057\u3066\u3044\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\" style=\"width:640px;max-width:100%;margin:32px auto\"><img loading=\"lazy\" decoding=\"async\" width=\"1087\" height=\"1447\" src=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/10\/sj-diaphragm-material-field.png\" alt=\"Clamp-connected instruments on an industrial process pipe\" class=\"wp-image-6106\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" style=\"display:block;width:100%;height:auto;aspect-ratio:3\/2;object-fit:cover;object-position:center 80%\" srcset=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/10\/sj-diaphragm-material-field.png 1087w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/10\/sj-diaphragm-material-field-225x300.png 225w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/10\/sj-diaphragm-material-field-769x1024.png 769w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/10\/sj-diaphragm-material-field-768x1022.png 768w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/10\/sj-diaphragm-material-field-9x12.png 9w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/10\/sj-diaphragm-material-field-300x399.png 300w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2026\/10\/sj-diaphragm-material-field-600x799.png 600w\" \/><figcaption class=\"wp-element-caption\" style=\"text-align:center\">\u56f32\uff5c\u30af\u30e9\u30f3\u30d7\u63a5\u7d9a\u3092\u7528\u3044\u305f\u5b9f\u969b\u306e\u30d7\u30ed\u30bb\u30b9\u8a2d\u5099\u3002\u5916\u89b3\u304b\u3089\u306f\u6750\u8cea\u306e\u30b0\u30ec\u30fc\u30c9\u3084\u5316\u5b66\u7684\u9069\u5408\u6027\u3092\u5224\u65ad\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u30d6\u30e9\u30f3\u30c9\u30de\u30fc\u30af\u306f\u9664\u53bb\u3055\u308c\u3066\u3044\u307e\u3059\u3002.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-are-special-alloys-or-coatings-always-better\"><span class=\"ez-toc-section\" id=\"are-special-alloys-or-coatings-always-better\"><\/span>\u7279\u6b8a\u5408\u91d1\u3084\u30b3\u30fc\u30c6\u30a3\u30f3\u30b0\u306f\u5e38\u306b\u512a\u308c\u3066\u3044\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u30cb\u30c3\u30b1\u30eb\u5408\u91d1\u3001\u30bf\u30f3\u30bf\u30eb\u3001\u30c1\u30bf\u30f3\u3001\u30d5\u30c3\u7d20\u6a39\u8102\u30b3\u30fc\u30c6\u30a3\u30f3\u30b0\u306b\u306f\u305d\u308c\u305e\u308c\u7528\u9014\u4e0a\u306e\u9650\u754c\u304c\u3042\u308a\u307e\u3059\u3002\u8010\u85ac\u54c1\u6027\u3001\u8010\u5727\u30fb\u8010\u71b1\u6027\u3001\u63a5\u5408\u65b9\u6cd5\u3001\u8010\u6469\u8017\u6027\u3001\u30b3\u30b9\u30c8\u306a\u3069\u3092\u6bd4\u8f03\u691c\u8a0e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u9ad8\u4fa1\u306a\u6750\u6599\u304c\u5fc5\u305a\u3057\u3082\u6700\u9069\u306a\u6750\u6599\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n<p>\u8010\u8150\u98df\u6027\u3068\u8010\u6469\u8017\u6027\u306f\u7570\u306a\u308a\u307e\u3059\u3002\u7c92\u5b50\u3092\u542b\u3080\u6d41\u4f53\u306e\u5834\u5408\u3001\u6d41\u91cf\u3084\u6d17\u6d44\u65b9\u6cd5\u3001\u30c0\u30a4\u30e4\u30d5\u30e9\u30e0\u306e\u6750\u8cea\u306a\u3069\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30b3\u30fc\u30c6\u30a3\u30f3\u30b0\u306f\u9069\u5207\u306a\u4f7f\u7528\u9650\u754c\u3068\u640d\u50b7\u306e\u306a\u3044\u8868\u9762\u3092\u5fc5\u8981\u3068\u3057\u3001\u65e2\u306b\u640d\u50b7\u3057\u305f\u30c0\u30a4\u30e4\u30d5\u30e9\u30e0\u306e\u88dc\u4fee\u3068\u3057\u3066\u6271\u3046\u3079\u304d\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-check-the-cause-before-replacing-a-corroded-seal\"><span class=\"ez-toc-section\" id=\"check-the-cause-before-replacing-a-corroded-seal\"><\/span>\u8150\u98df\u3057\u305f\u30b7\u30fc\u30eb\u3092\u4ea4\u63db\u3059\u308b\u524d\u306b\u539f\u56e0\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u52a3\u5316\u304c\u767a\u751f\u3057\u305f\u7b87\u6240\u3068\u3001\u5a92\u4f53\u3001\u6fc3\u5ea6\u3001\u6e29\u5ea6\u3001\u6d17\u6d44\u65b9\u6cd5\u306b\u5909\u66f4\u304c\u3042\u3063\u305f\u304b\u3069\u3046\u304b\u3092\u8a18\u9332\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u3089\u306e\u6761\u4ef6\u3092\u78ba\u8a8d\u305b\u305a\u306b\u540c\u3058\u4ed5\u69d8\u306e\u30b7\u30fc\u30eb\u306b\u4ea4\u63db\u3059\u308b\u3068\u3001\u540c\u3058\u4e0d\u5177\u5408\u304c\u7e70\u308a\u8fd4\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u8868\u9762\u306e\u8272\u3060\u3051\u3067\u306f\u3001\u5806\u7a4d\u7269\u3001\u9178\u5316\u3001\u8150\u98df\u3092\u533a\u5225\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n<p>\u6f0f\u308c\u3084\u30c0\u30a4\u30e4\u30d5\u30e9\u30e0\u306e\u640d\u50b7\u304c\u7591\u308f\u308c\u308b\u5834\u5408\u306f\u3001\u70b9\u691c\u524d\u306b\u30d7\u30e9\u30f3\u30c8\u306e\u9694\u96e2\u304a\u3088\u3073\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u624b\u9806\u306b\u5f93\u3063\u3066\u304f\u3060\u3055\u3044\u3002\u5145\u586b\u6e08\u307f\u306e\u30b7\u30fc\u30eb\u30a2\u30bb\u30f3\u30d6\u30ea\u3092\u958b\u3051\u305f\u308a\u3001\u8584\u3044\u30c0\u30a4\u30e4\u30d5\u30e9\u30e0\u3092\u524a\u3063\u305f\u308a\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002 <a href=\"https:\/\/www.sj-gauge.com\/ja\/diaphragm-seal-process-leak\/\">\u30c0\u30a4\u30e4\u30d5\u30e9\u30e0\u30b7\u30fc\u30eb\u5de5\u7a0b\u306e\u6f0f\u308c\uff1a\u78ba\u8a8d\u3059\u3079\u304d\u4e8b\u9805<\/a> \u95a2\u9023\u3059\u308b\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u30dd\u30a4\u30f3\u30c8\u306b\u3064\u3044\u3066\u306f\u3001\u3053\u3061\u3089\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-international-standards-use-the-right-scope\"><span class=\"ez-toc-section\" id=\"international-standards-use-the-right-scope\"><\/span>\u56fd\u969b\u898f\u683c\uff1a\u9069\u5207\u306a\u9069\u7528\u7bc4\u56f2\u3092\u9078\u629e\u3059\u308b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.asme.org\/codes-standards\/find-codes-standards\/pressure-gauges-and-gauge-attachments\">ASME B40.100-2022<\/a>\u5727\u529b\u8a08\u304a\u3088\u3073\u30c0\u30a4\u30e4\u30d5\u30e9\u30e0\u30b7\u30fc\u30eb\u3092\u542b\u3080\u5727\u529b\u8a08\u53d6\u308a\u4ed8\u3051\u90e8\u3092\u5bfe\u8c61\u3068\u3057\u3066\u3044\u307e\u3059\u3002\u30e1\u30fc\u30ab\u30fc\u306e\u7528\u9014\u304a\u3088\u3073\u6750\u6599\u8981\u4ef6\u3068\u4f75\u305b\u3066\u3001\u3053\u306e\u8cc7\u6599\u3092\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/li>\n\n\n\n<li><a href=\"https:\/\/www.iso.org\/standard\/79658.html\">ISO 15156-1:2020<\/a>\u672c\u898f\u683c\u306f\u3001\u77f3\u6cb9\u30fb\u30ac\u30b9\u751f\u7523\u304a\u3088\u3073\u5929\u7136\u30ac\u30b9\u8131\u786b\u5de5\u7a0b\u306b\u304a\u3051\u308bH\u2082S\u95a2\u9023\u306e\u8150\u98df\u5272\u308c\u306b\u8010\u6027\u306e\u3042\u308b\u91d1\u5c5e\u6750\u6599\u306e\u9078\u5b9a\u304a\u3088\u3073\u8a55\u4fa1\u306b\u95a2\u3059\u308b\u4e00\u822c\u539f\u5247\u3092\u63d0\u4f9b\u3059\u308b\u3082\u306e\u3067\u3059\u3002\u305f\u3060\u3057\u3001\u3059\u3079\u3066\u306e\u5316\u5b66\u30d7\u30ed\u30bb\u30b9\u306b\u9069\u7528\u3067\u304d\u308b\u4e00\u822c\u7684\u306a\u8150\u98df\u9069\u5408\u6027\u898f\u683c\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002.<\/li>\n\n\n\n<li><a href=\"https:\/\/www.asme.org\/codes-standards\/find-codes-standards\/bpe-bioprocessing-equipment-(1)\">ASME 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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\" 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id=\"h-is-316l-enough-for-a-food-or-hygienic-application\">\u98df\u54c1\u7528\u9014\u3084\u885b\u751f\u7528\u9014\u306b\u304a\u3044\u3066\u3001316L\u30b9\u30c6\u30f3\u30ec\u30b9\u92fc\u306f\u5341\u5206\u306a\u6027\u80fd\u3092\u767a\u63ee\u3057\u307e\u3059\u304b\uff1f<\/h3>\n\n\n\n<p>\u3044\u3044\u3048\u3002\u8868\u9762\u4ed5\u4e0a\u3052\u3001\u30d7\u30ed\u30bb\u30b9\u63a5\u7d9a\u3001\u30ac\u30b9\u30b1\u30c3\u30c8\u3001\u6d17\u6d44\u6761\u4ef6\u3001\u304a\u3088\u3073\u5fc5\u8981\u306a\u6587\u66f8\u3092\u3001\u5b8c\u5168\u306a\u30a2\u30bb\u30f3\u30d6\u30ea\u3068\u3057\u3066\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u5145\u586b\u6db2\u306e\u9069\u5408\u6027\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001\u305d\u308c\u3082\u5225\u9014\u6307\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-choose-from-the-full-operating-conditions\"><span class=\"ez-toc-section\" id=\"choose-from-the-full-operating-conditions\"><\/span>\u5b8c\u5168\u306a\u904b\u7528\u6761\u4ef6\u304b\u3089\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30c0\u30a4\u30e4\u30d5\u30e9\u30e0\u30b7\u30fc\u30eb\u306e\u9078\u5b9a\u306b\u306f\u3001\u5a92\u4f53\u3001\u6fc3\u5ea6\u3001\u6e29\u5ea6\u3001\u5727\u529b\u3001\u7c92\u5b50\u3001\u6d17\u6d44\u6761\u4ef6\u306b\u52a0\u3048\u3001\u63a5\u6db2\u90e8\u306e\u69cb\u9020\u5168\u4f53\u3092\u8003\u616e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u6750\u8cea\u3068\u30e2\u30c7\u30eb\u3092\u78ba\u5b9a\u3059\u308b\u524d\u306b\u3001\u3053\u308c\u3089\u306e\u8a73\u7d30\u3092SJ Gauge\u306b\u304a\u77e5\u3089\u305b\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<p><a href=\"https:\/\/www.sj-gauge.com\/ja\/contact\/\">\u30c0\u30a4\u30e4\u30d5\u30e9\u30e0\u30b7\u30fc\u30eb\u6750\u306e\u9078\u5b9a\u306b\u3064\u3044\u3066\u8b70\u8ad6\u3059\u308b<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Choosing a diaphragm seal material starts with the process fluid, not simply the word \u201cstainless.\u201d The diaphragm and other wetted parts must withstand the medium throughout normal operation, temperature excursions and cleaning. A mismatch can lead to pitting, thinning, cracks and leakage of the system fill fluid. 316L stainless steel suits many industrial applications, but it is not a universal solution for every acid, alkali, chloride-containing fluid or high-temperature chemical process. Start with complete operating data, then confirm the material and construction together. Figure 1 | A flanged assembly and capillary illustrate why the complete seal construction must be reviewed. The image is not a material or failure diagnosis; identification [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":6105,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[61],"tags":[71],"class_list":["post-6109","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>Diaphragm Seal Material Selection: 316L &amp;\u3002\u306b\u3064\u3044\u3066\uff5cSJ Gauge<\/title>\n<meta name=\"description\" content=\"Select diaphragm seal materials for the actual medium, concentration, temperature and cleaning cycle. 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