{"id":4564,"date":"2026-04-21T08:18:44","date_gmt":"2026-04-21T08:18:44","guid":{"rendered":"https:\/\/hydrathpower.com\/?p=4564"},"modified":"2026-04-21T08:18:44","modified_gmt":"2026-04-21T08:18:44","slug":"%e3%83%91%e3%82%a4%e3%83%ad%e3%83%83%e3%83%88%e9%80%86%e6%ad%a2%e5%bc%81%e3%81%8c%e6%b5%81%e4%bd%93%e5%88%b6%e5%be%a1%e3%81%ab%e4%b8%8d%e5%8f%af%e6%ac%a0%e3%81%aa%e7%90%86%e7%94%b1","status":"publish","type":"post","link":"https:\/\/hydrathpower.com\/ja\/why-pilot-check-valves-are-essential-for-fluid-control\/","title":{"rendered":"\u30d1\u30a4\u30ed\u30c3\u30c8\u30fb\u30c1\u30a7\u30c3\u30af\u30fb\u30d0\u30eb\u30d6\u304c\u6d41\u4f53\u5236\u5fa1\u306b\u4e0d\u53ef\u6b20\u306a\u7406\u7531"},"content":{"rendered":"<figure id=\"attachment_4566\" aria-describedby=\"caption-attachment-4566\" style=\"width: 300px\" class=\"wp-caption alignnone\"><img fetchpriority=\"high\" decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/Why-Pilot-Check-Valves-Are-Essential-for-Fluid-Control-300x256.jpg\" class=\"size-medium wp-image-4566 lazyload\" alt=\"\u30d1\u30a4\u30ed\u30c3\u30c8\u30fb\u30c1\u30a7\u30c3\u30af\u30fb\u30d0\u30eb\u30d6\u304c\u6d41\u4f53\u5236\u5fa1\u306b\u4e0d\u53ef\u6b20\u306a\u7406\u7531\" width=\"300\" height=\"256\"><figcaption id=\"caption-attachment-4566\" class=\"wp-caption-text\"><noscript><img decoding=\"async\" class=\"size-medium wp-image-4566\" src=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/Why-Pilot-Check-Valves-Are-Essential-for-Fluid-Control-300x256.jpg\" alt=\"\u30d1\u30a4\u30ed\u30c3\u30c8\u30fb\u30c1\u30a7\u30c3\u30af\u30fb\u30d0\u30eb\u30d6\u304c\u6d41\u4f53\u5236\u5fa1\u306b\u4e0d\u53ef\u6b20\u306a\u7406\u7531\" width=\"300\" height=\"256\" srcset=\"https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/Why-Pilot-Check-Valves-Are-Essential-for-Fluid-Control-300x256.jpg 300w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/Why-Pilot-Check-Valves-Are-Essential-for-Fluid-Control-1024x872.jpg 1024w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/Why-Pilot-Check-Valves-Are-Essential-for-Fluid-Control-768x654.jpg 768w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/Why-Pilot-Check-Valves-Are-Essential-for-Fluid-Control-14x12.jpg 14w, https:\/\/hydrathpower.com\/wp-content\/uploads\/2026\/04\/Why-Pilot-Check-Valves-Are-Essential-for-Fluid-Control.jpg 1027w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/noscript> \u30d1\u30a4\u30ed\u30c3\u30c8\u30fb\u30c1\u30a7\u30c3\u30af\u30fb\u30d0\u30eb\u30d6\u304c\u6d41\u4f53\u5236\u5fa1\u306b\u4e0d\u53ef\u6b20\u306a\u7406\u7531<\/figcaption><\/figure>\n<section>\n<h2>\u30d1\u30a4\u30ed\u30c3\u30c8\u30aa\u30da\u30ec\u30fc\u30c8\u30c1\u30a7\u30c3\u30af\u30d0\u30eb\u30d6\u3068\u306f\uff1f<\/h2>\n<p>\u30d1\u30a4\u30ed\u30c3\u30c8\u64cd\u4f5c\u5f0f\u9006\u6b62\u5f01\u306f\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f\u9006\u6d41\u3092\u963b\u6b62\u3057\u3001\u30d1\u30a4\u30ed\u30c3\u30c8\u5727\u304c\u304b\u304b\u308b\u3068\u9006\u306b\u958b\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u6cb9\u5727\u56de\u8def\u306b\u304a\u3051\u308b\u5236\u5fa1\u3055\u308c\u305f\u30ea\u30ea\u30fc\u30b9\u3068\u5b89\u5b9a\u3057\u305f\u8ca0\u8377\u4fdd\u6301\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002.<\/p>\n<\/section>\n<section>\n<h2>\u30d1\u30a4\u30ed\u30c3\u30c8\u30fb\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u306e\u4ed5\u7d44\u307f<\/h2>\n<ol>\n<li><strong>\u901a\u5e38\u306e\u72b6\u614b\uff1a<\/strong> \u30b9\u30d7\u30ea\u30f3\u30b0\/\u30dd\u30da\u30c3\u30c8\u304c\u9006\u56de\u8ee2\u7d4c\u8def\u3092\u9589\u3058\u305f\u72b6\u614b\u306b\u4fdd\u3064\u3002.<\/li>\n<li><strong>\u30d1\u30a4\u30ed\u30c3\u30c8\u5727\u304c\u304b\u304b\u308b\uff1a<\/strong> \u5185\u90e8\u30e1\u30ab\u30cb\u30ba\u30e0\u304c\u30c1\u30a7\u30c3\u30af\u30fb\u30a8\u30ec\u30e1\u30f3\u30c8\u3092\u6301\u3061\u4e0a\u3052\u308b\u3002.<\/li>\n<li><strong>\u30ea\u30d0\u30fc\u30b9\u30d5\u30ed\u30fc\u304c\u6709\u52b9\uff1a<\/strong> \u30a2\u30af\u30c1\u30e5\u30a8\u30fc\u30bf\u5074\u306f\u5236\u5fa1\u3055\u308c\u305f\u65b9\u6cd5\u3067\u30bf\u30f3\u30af\u306b\u623b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002.<\/li>\n<\/ol>\n<\/section>\n<section>\n<h2>\u4e00\u822c\u7684\u306a\u30bf\u30a4\u30d7\u3068\u4ee3\u8868\u7684\u306a\u4ed5\u69d8<\/h2>\n<table border=\"1\" cellpadding=\"6\">\n<thead>\n<tr>\n<th>\u30d0\u30eb\u30d6\u30bf\u30a4\u30d7<\/th>\n<th>\u30d1\u30a4\u30ed\u30c3\u30c8\u6bd4\u7387<\/th>\n<th>\u4ee3\u8868\u7684\u306a\u5727\u529b\u7bc4\u56f2<\/th>\n<th>\u6a19\u6e96\u6d41\u91cf\u7bc4\u56f2<\/th>\n<th>\u30d9\u30b9\u30c8\u30fb\u30d5\u30a3\u30c3\u30c8\u30fb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3<\/th>\n<th>\u30bb\u30ec\u30af\u30b7\u30e7\u30f3\u30fb\u30ce\u30fc\u30c8<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u30cd\u30b8\u5f0f\u30ab\u30fc\u30c8\u30ea\u30c3\u30b8<\/td>\n<td>3:1\u304b\u30894.5:1<\/td>\n<td>210\uff5e350\u30d0\u30fc\u30eb<\/td>\n<td>10\uff5e60 L\/\u5206<\/td>\n<td>\u30b3\u30f3\u30d1\u30af\u30c8HPU <a href=\"\/hydraulic-manifold\/\">\u30de\u30cb\u30db\u30fc\u30eb\u30c9<\/a>, \u79fb\u52d5\u30e6\u30cb\u30c3\u30c8<\/td>\n<td>\u8fc5\u901f\u306a\u30b5\u30fc\u30d3\u30b9\u4ea4\u63db\u3001\u30b9\u30da\u30fc\u30b9\u306b\u5236\u7d04\u306e\u3042\u308b\u30d6\u30ed\u30c3\u30af\u306b\u5f37\u3044<\/td>\n<\/tr>\n<tr>\n<td>\u30d1\u30a4\u30ed\u30c3\u30c8\u30fb\u30d4\u30b9\u30c8\u30f3<\/td>\n<td>3:1\u304b\u30895:1<\/td>\n<td>250\uff5e420\u30d0\u30fc\u30eb<\/td>\n<td>20\uff5e120 L\/\u5206<\/td>\n<td>\u9811\u4e08\u306a\u8010\u8377\u91cd\u3001, <a href=\"\/industrial-hydraulic-power-unit\/\">\u5de5\u696d\u7528\u30d7\u30ec\u30b9<\/a><\/td>\n<td>\u7e70\u308a\u8fd4\u3055\u308c\u308b\u5727\u529b\u30b5\u30a4\u30af\u30eb\u306e\u4e0b\u3067\u3082\u5b89\u5b9a\u3057\u3001\u525b\u6027\u306e\u9ad8\u3044\u30ed\u30fc\u30c9\u30ed\u30c3\u30af\u306b\u9069\u3057\u3066\u3044\u308b\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u30b7\u30f3\u30b0\u30eb\u30d1\u30a4\u30ed\u30c3\u30c8\u5f0f<\/td>\n<td>3:1\uff08\u5171\u901a\uff09<\/td>\n<td>210\uff5e315\u30d0\u30fc\u30eb<\/td>\n<td>15\uff5e80 L\/\u5206<\/td>\n<td>\u5358\u65b9\u5411\u8ca0\u8377\u30ed\u30c3\u30af\u56de\u8def<\/td>\n<td>\u7247\u5074\u306e\u307f\u30ea\u30d0\u30fc\u30b9\u30fb\u30ea\u30ea\u30fc\u30b9\u306e\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u304c\u5fc5\u8981\u306a\u5834\u5408\u306b\u4f7f\u7528<\/td>\n<\/tr>\n<tr>\n<td>\u30c0\u30d6\u30eb\u30d1\u30a4\u30ed\u30c3\u30c8\u5f0f<\/td>\n<td>3:1\u307e\u305f\u306f4.5:1<\/td>\n<td>250\uff5e350\u30d0\u30fc\u30eb<\/td>\n<td>20\uff5e100 L\/\u5206<\/td>\n<td>\u53cc\u65b9\u5411 <a href=\"\/hydraulic-cylinders\/\">\u30b7\u30ea\u30f3\u30c0\u30fc<\/a> \u30ed\u30c3\u30af\u56de\u8def<\/td>\n<td>A\/B\u30dd\u30fc\u30c8\u306e\u4e21\u65b9\u5411\u3067\u78ba\u5b9f\u306a\u30db\u30fc\u30eb\u30c9\u304c\u5fc5\u8981\u306a\u5834\u5408\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u9078\u5b9a\u306b\u3042\u305f\u3063\u3066\u306f\u3001\u307e\u305a\u30d1\u30a4\u30ed\u30c3\u30c8\u5143\u5727\u3092\u78ba\u8a8d\u3057\u3001\u6b21\u306b\u30d1\u30a4\u30ed\u30c3\u30c8\u6bd4\u3001\u4f7f\u7528\u5727\u529b\u3001\u76ee\u6a19\u6d41\u91cf\u3092\u5408\u308f\u305b\u307e\u3059\u3002\u6a19\u6e96\u7684\u306a\u63a5\u7d9a\u30b5\u30a4\u30ba\u306f\u3001\u30de\u30cb\u30db\u30fc\u30eb\u30c9\u3068\u30b7\u30ea\u30f3\u30c0\u30fc\u306e\u8981\u4ef6\u306b\u5fdc\u3058\u3066\u30011\/8\u30a4\u30f3\u30c1\u304b\u30891\/2\u30a4\u30f3\u30c1\u3067\u3059\u3002.<\/p>\n<\/section>\n<section>\n<h2>\u3088\u304f\u3042\u308b\u3054\u8cea\u554f<\/h2>\n<h3>\u30d1\u30a4\u30ed\u30c3\u30c8\u6bd4\u7387\u306f\u5e38\u306b3\uff1a1\u304c\u30d9\u30b9\u30c8\u304b\uff1f<\/h3>\n<p>\u3044\u3044\u3048\u3002\u4f7f\u7528\u53ef\u80fd\u306a\u30d1\u30a4\u30ed\u30c3\u30c8\u5727\u3068\u5fc5\u8981\u306a\u30ea\u30ea\u30fc\u30b9\u52d5\u4f5c\u3067\u9078\u629e\u3057\u307e\u3059\u3002.<\/p>\n<h3>\u30b7\u30ea\u30f3\u30c0\u30fc\u30af\u30ea\u30fc\u30d7\u306f\u306a\u305c\u8d77\u3053\u308b\u306e\u304b\uff1f<\/h3>\n<p>\u8003\u3048\u3089\u308c\u308b\u539f\u56e0\u3068\u3057\u3066\u306f\u3001\u5185\u90e8\u6f0f\u308c\u3001\u30b7\u30fc\u30eb\u306e\u6469\u8017\u3001\u6c5a\u67d3\u3001\u30d1\u30a4\u30ed\u30c3\u30c8\u5236\u5fa1\u306e\u4e0d\u5099\u306a\u3069\u304c\u3042\u308b\u3002.<\/p>\n<\/section>","protected":false},"excerpt":{"rendered":"<p>What Is a Pilot Operated Check Valve? A pilot operated check valve blocks reverse flow by default, then opens in [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4566,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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