{"id":8417,"date":"2026-06-14T20:33:54","date_gmt":"2026-06-14T20:33:54","guid":{"rendered":"https:\/\/www.yunrui-controls.com\/?p=8417"},"modified":"2026-06-14T20:34:56","modified_gmt":"2026-06-14T20:34:56","slug":"control-valve-cv-calculation-actuator-sizing","status":"publish","type":"post","link":"https:\/\/www.yunrui-controls.com\/ja\/control-valve-cv-calculation-actuator-sizing\/","title":{"rendered":"\u30a2\u30af\u30c1\u30e5\u30a8\u30fc\u30bf\u306e\u9078\u5b9a\u3068\u30d0\u30eb\u30d6\u306e\u30b5\u30a4\u30ba\u6c7a\u5b9a\uff1a\u5de5\u5b66\u7684\u8a08\u7b97\u65b9\u6cd5"},"content":{"rendered":"<div style=\"font-family: -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen,Ubuntu,sans-serif; line-height: 1.7; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px;\">\n<div style=\"background: linear-gradient(135deg,#1e3a5f 0%,#2d5a87 100%); color: #fff; padding: 40px 30px; border-radius: 8px; margin-bottom: 30px;\">\n<h2 style=\"color: #fff; margin: 0 0 15px 0; font-size: 32px; font-weight: 600;\">\u5236\u5fa1\u5f01\u306e\u30b5\u30a4\u30ba\u9078\u5b9a\u3068\u30a2\u30af\u30c1\u30e5\u30a8\u30fc\u30bf\u306e\u9078\u5b9a\uff1a\u5b8c\u5168\u306a\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u8a08\u7b97\u30ac\u30a4\u30c9<\/h2>\n<p style=\"color: #e0e8f0; margin: 0; font-size: 16px;\">\u30d7\u30ed\u30bb\u30b9\u5236\u5fa1\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u304a\u3051\u308b\u30de\u30b9\u30bf\u30fcCv\u5024\u306e\u8a08\u7b97\u3001\u63a8\u529b\u89e3\u6790\u3001\u30a2\u30af\u30c1\u30e5\u30a8\u30fc\u30bf\u306e\u30b5\u30a4\u30b8\u30f3\u30b0\u3002\u6280\u8853\u7684\u306a\u516c\u5f0f\u3001\u8a08\u7b97\u4f8b\u3001\u304a\u3088\u3073\u73fe\u5834\u3067\u5b9f\u8a3c\u6e08\u307f\u306e\u9078\u5b9a\u65b9\u6cd5\u3002.<\/p>\n<\/div>\n<div style=\"background: #f8fafc; border-left: 4px solid #2d5a87; padding: 20px; margin-bottom: 30px; border-radius: 0 8px 8px 0;\">\n<p style=\"margin: 0; color: #475569; font-size: 14px;\"><strong>\u30af\u30a4\u30c3\u30af\u30ca\u30d3\u30b2\u30fc\u30b7\u30e7\u30f3\uff1a<\/strong> <a style=\"color: #2d5a87; text-decoration: none;\" href=\"#cv-basics\">\u5c65\u6b74\u66f8\u306e\u57fa\u790e<\/a> | <a style=\"color: #2d5a87; text-decoration: none;\" href=\"#liquid-cv\">\u6db2\u4f53CV<\/a> | <a style=\"color: #2d5a87; text-decoration: none;\" href=\"#gas-cv\">\u30ac\u30b9Cv<\/a> | <a style=\"color: #2d5a87; text-decoration: none;\" href=\"#steam-cv\">Steam Cv<\/a> | <a style=\"color: #2d5a87; text-decoration: none;\" href=\"#actuator-thrust\">\u30a2\u30af\u30c1\u30e5\u30a8\u30fc\u30bf\u63a8\u529b<\/a> | <a style=\"color: #2d5a87; text-decoration: none;\" href=\"#selection\">\u9078\u629e\u30ac\u30a4\u30c9<\/a><\/p>\n<\/div>\n<h3 id=\"cv-basics\" style=\"color: #1e3a5f; font-size: 24px; margin-top: 40px; margin-bottom: 20px; border-bottom: 2px solid #e2e8f0; padding-bottom: 10px;\">1. \u5236\u5fa1\u5f01\u6d41\u91cf\u4fc2\u6570\uff08Cv\uff09\u306e\u57fa\u790e<\/h3>\n<p>\u306e <strong>\u6d41\u91cf\u4fc2\u6570 Cv<\/strong> \u5236\u5fa1\u5f01\u306e\u6d41\u4f53\u901a\u904e\u80fd\u529b\u3092\u5b9a\u91cf\u5316\u3057\u307e\u3059\u3002\u6a19\u6e96\u6761\u4ef6\u3067\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u307e\u3059\uff1a60\u00b0F\u306e\u6c34\u30011 psi\u306e\u5727\u529b\u964d\u4e0b\u3001\u6d41\u91cf\u306f\u6bce\u5206US\u30ac\u30ed\u30f3\u3067\u6e2c\u5b9a\u3055\u308c\u307e\u3059\u3002 <a style=\"color: #2d5a87; text-decoration: none; font-weight: 600;\" href=\"https:\/\/www.yunrui-controls.com\/ja\/brands\/fisher\/\">\u30d5\u30a3\u30c3\u30b7\u30e3\u30fc<\/a> \u307e\u305f\u3001\u4ed6\u306e\u7523\u696d\u7528\u30d0\u30eb\u30d6\u30e1\u30fc\u30ab\u30fc\u3082\u3001\u9069\u5207\u306a\u30b5\u30a4\u30ba\u9078\u5b9a\u306e\u305f\u3081\u306b\u6b63\u78ba\u306aCv\u5024\u306e\u8a08\u7b97\u306b\u4f9d\u5b58\u3057\u3066\u3044\u308b\u3002.<\/p>\n<div style=\"background: #e7f3ff; border-left: 5px solid #0066cc; padding: 20px; margin: 25px 0; border-radius: 0 5px 5px 0;\">\n<p style=\"margin: 0; color: #1e3a5f; font-size: 15px;\"><strong>\u6a19\u6e96\u5b9a\u7fa9\uff1a<\/strong> Cv = Q \u00d7 \u221a(SG\/\u0394P)<\/p>\n<p style=\"margin: 8px 0 0 0; color: #475569; font-size: 14px;\">\u3053\u3053\u3067\u3001Q = \u6d41\u91cf (US gal\/min)\u3001SG = \u6bd4\u91cd (\u6c34 = 1.0)\u3001\u0394P = \u5727\u529b\u964d\u4e0b (psi)<\/p>\n<\/div>\n<h4 style=\"color: #2d5a87; font-size: 18px; margin-top: 25px; margin-bottom: 15px;\">1.1 Cv\u3068Kv\u306e\u5909\u63db<\/h4>\n<table style=\"width: 100%; border-collapse: collapse; font-size: 14px; box-shadow: 0 2px 4px rgba(0,0,0,0.1);\">\n<thead>\n<tr style=\"background: linear-gradient(135deg,#1e3a5f 0%,#2d5a87 100%); color: #fff;\">\n<th style=\"padding: 14px 12px; text-align: left; font-weight: 600;\">\u6a19\u6e96<\/th>\n<th style=\"padding: 14px 12px; text-align: left; font-weight: 600;\">\u6761\u4ef6<\/th>\n<th style=\"padding: 14px 12px; text-align: left; font-weight: 600;\">\u5358\u4f4d<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 12px; border: 1px solid #e2e8f0; font-weight: 600;\">Cv\uff08\u7c73\u56fd\uff09<\/td>\n<td style=\"padding: 12px; border: 1px solid #e2e8f0;\">\u0394P = 1 psi\u3001\u6c34\u6e2960\u00b0F<\/td>\n<td style=\"padding: 12px; border: 1px solid #e2e8f0;\">\u7c73\u56fd\u30ac\u30ed\u30f3\/\u5206<\/td>\n<\/tr>\n<tr style=\"background: #f8fafc;\">\n<td style=\"padding: 12px; border: 1px solid #e2e8f0; font-weight: 600;\">Kv\uff08\u30e1\u30fc\u30c8\u30eb\u6cd5\uff09<\/td>\n<td style=\"padding: 12px; border: 1px solid #e2e8f0;\">\u0394P = 1 bar\u3001\u6c34\u6e295\uff5e30\u2103<\/td>\n<td style=\"padding: 12px; border: 1px solid #e2e8f0;\">m\u00b3\/h<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"margin-top: 15px;\"><strong>\u5909\u63db\uff1a<\/strong> Cv = 1.156 \u00d7 Kv<\/p>\n<h3 id=\"liquid-cv\" style=\"color: #1e3a5f; font-size: 24px; margin-top: 40px; margin-bottom: 20px; border-bottom: 2px solid #e2e8f0; padding-bottom: 10px;\">2. \u6db2\u4f53\u306eCv\u5024\u306e\u8a08\u7b97<\/h3>\n<h4 style=\"color: #2d5a87; font-size: 18px; margin-top: 25px; margin-bottom: 15px;\">2.1 \u57fa\u672c\u5f0f\uff08\u975e\u30c1\u30e7\u30fc\u30af\u6d41\u308c\uff09<\/h4>\n<div style=\"background: #f0f9ff; border: 2px solid #0ea5e9; padding: 25px; margin: 20px 0; border-radius: 8px;\">\n<p style=\"margin: 0; color: #0369a1; font-size: 18px; font-weight: 600; text-align: center;\">Cv = Q \u00d7 \u221a(SG \/ \u0394P)<\/p>\n<\/div>\n<h4 style=\"color: #2d5a87; font-size: 18px; margin-top: 25px; margin-bottom: 15px;\">2.2 \u30c1\u30e7\u30fc\u30af\u30c9\u30d5\u30ed\u30fc\u88dc\u6b63<\/h4>\n<p>\u5727\u529b\u964d\u4e0b\u304c\u81e8\u754c\u5024\u3092\u8d85\u3048\u305f\u5834\u5408\uff08\u30d5\u30e9\u30c3\u30b7\u30f3\u30b0\uff0f\u30ad\u30e3\u30d3\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u5371\u967a\u6027\uff09\uff1a<\/p>\n<div style=\"background: #f0f9ff; border: 2px solid #0ea5e9; padding: 25px; margin: 20px 0; border-radius: 8px;\">\n<p style=\"margin: 0; color: #0369a1; font-size: 16px; font-weight: 600; text-align: center;\">Cv = Q \u00d7 \u221a(SG \/ (F<sub>L<\/sub>\u00b2 \u00d7 (P\u2081 \u2013 F<sub>F<\/sub> \u00d7 P<sub>v<\/sub>)))<\/p>\n<\/div>\n<table style=\"width: 100%; border-collapse: collapse; font-size: 14px; margin: 20px 0;\">\n<thead>\n<tr style=\"background: linear-gradient(135deg,#1e3a5f 0%,#2d5a87 100%); color: #fff;\">\n<th style=\"padding: 12px; text-align: left;\">\u30d1\u30e9\u30e1\u30fc\u30bf<\/th>\n<th style=\"padding: 12px; text-align: left;\">\u8aac\u660e<\/th>\n<th style=\"padding: 12px; text-align: left;\">\u6a19\u6e96\u5024<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 10px; border: 1px solid #e2e8f0;\">F<sub>L<\/sub><\/td>\n<td style=\"padding: 10px; border: 1px solid #e2e8f0;\">\u5727\u529b\u56de\u5fa9\u4fc2\u6570<\/td>\n<td style=\"padding: 10px; border: 1px solid #e2e8f0;\">0.85\uff5e0.95\uff08\u30b0\u30ed\u30fc\u30d6\u30d0\u30eb\u30d6\uff09<\/td>\n<\/tr>\n<tr style=\"background: #f8fafc;\">\n<td style=\"padding: 10px; border: 1px solid #e2e8f0;\">F<sub>F<\/sub><\/td>\n<td style=\"padding: 10px; border: 1px solid #e2e8f0;\">\u81e8\u754c\u5727\u529b\u6bd4\u4fc2\u6570<\/td>\n<td style=\"padding: 10px; border: 1px solid #e2e8f0;\">0.96-0.98<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 10px; border: 1px solid #e2e8f0;\">P<sub>v<\/sub><\/td>\n<td style=\"padding: 10px; border: 1px solid #e2e8f0;\">\u6db2\u4f53\u306e\u84b8\u6c17\u5727\uff08psia\uff09<\/td>\n<td style=\"padding: 10px; border: 1px solid #e2e8f0;\">\u4f53\u6db2\u4f9d\u5b58<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4 style=\"color: #2d5a87; font-size: 18px; margin-top: 25px; margin-bottom: 15px;\">2.3 \u5b9f\u4f8b\uff1a\u6c34\u306e\u5229\u7528<\/h4>\n<div style=\"background: #f8fafc; border: 1px solid #e2e8f0; padding: 25px; margin: 20px 0; border-radius: 8px;\">\n<p style=\"margin: 0 0 15px 0; color: #1e3a5f; font-weight: 600;\">\u51e6\u7406\u6761\u4ef6\uff1a<\/p>\n<ul style=\"margin: 0; padding-left: 20px; color: #475569;\">\n<li>\u5a92\u4f53\uff1a\u6c34\u3001\u6bd4\u91cd\uff1d1.0<\/li>\n<li>\u6d41\u91cf\uff1a100 US\u30ac\u30ed\u30f3\/\u5206<\/li>\n<li>\u5165\u53e3\u5727\u529b\uff1a100 psig<\/li>\n<li>\u51fa\u53e3\u5727\u529b\uff1a80 psig<\/li>\n<li>\u30d0\u30eb\u30d6\u306e\u7a2e\u985e\uff1a\u30b0\u30ed\u30fc\u30d6\u30d0\u30eb\u30d6\u3001F<sub>L<\/sub> = 0.9<\/li>\n<\/ul>\n<p style=\"margin: 20px 0 10px 0; color: #1e3a5f; font-weight: 600;\">\u8a08\u7b97\uff1a<\/p>\n<ol style=\"margin: 0; padding-left: 20px; color: #475569; line-height: 1.8;\">\n<li>\u0394P = 100 \u2013 80 = 20 psi<\/li>\n<li>\u30c1\u30e7\u30fc\u30af\u30d5\u30ed\u30fc\u3092\u30c1\u30a7\u30c3\u30af\uff1a\u0394P<sub>\u81f4\u547d\u7684<\/sub> = 0.9\u00b2 \u00d7 (114.7 \u2013 0.256) = 92.7 psi<\/li>\n<li>20 psi &lt; 92.7 psi \u2192 \u975e\u30c1\u30e7\u30fc\u30af\u30d5\u30ed\u30fc<\/li>\n<li>Cv = 100 \u00d7 \u221a(1.0 \/ 20) = 100 \u00d7 0.2236 = <strong>22.4<\/strong><\/li>\n<\/ol>\n<div style=\"background: #d4edda; border-left: 4px solid #28a745; padding: 15px; margin-top: 20px; border-radius: 0 5px 5px 0;\">\n<p style=\"margin: 0; color: #155724;\"><strong>\u9078\u629e\uff1a<\/strong> Cv\u5024\u304c25\uff5e30\uff08\u5b89\u5168\u73871.2\uff5e1.5\u500d\uff09\u306e\u30d0\u30eb\u30d6\u3092\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/div>\n<\/div>\n<h3 id=\"gas-cv\" style=\"color: #1e3a5f; font-size: 24px; margin-top: 40px; margin-bottom: 20px; border-bottom: 2px solid #e2e8f0; padding-bottom: 10px;\">3. \u30ac\u30b9Cv\u5024\u306e\u8a08\u7b97<\/h3>\n<h4 style=\"color: #2d5a87; font-size: 18px; margin-top: 25px; margin-bottom: 15px;\">3.1 \u4e9c\u81e8\u754c\u6d41\uff08\u0394P\/P\u2081 &lt; 0.5\uff09<\/h4>\n<div style=\"background: #f0f9ff; border: 2px solid #0ea5e9; padding: 25px; margin: 20px 0; border-radius: 8px;\">\n<p style=\"margin: 0; color: #0369a1; font-size: 16px; font-weight: 600; text-align: center;\">Cv = Q \/ (1360 \u00d7 \u221a(\u0394P \u00d7 P\u2082 \/ (SG \u00d7 T)))<\/p>\n<\/div>\n<h4 style=\"color: #2d5a87; font-size: 18px; margin-top: 25px; margin-bottom: 15px;\">3.2 \u81e8\u754c\u6d41\u91cf\uff08\u0394P\/P\u2081 \u2265 0.5\uff09<\/h4>\n<div style=\"background: #f0f9ff; border: 2px solid #0ea5e9; padding: 25px; margin: 20px 0; border-radius: 8px;\">\n<p style=\"margin: 0; color: #0369a1; font-size: 16px; font-weight: 600; text-align: center;\">Cv = Q \/ (834 \u00d7 F<sub>k<\/sub> \u00d7 P\u2081 \/ \u221a(SG \u00d7 T))<\/p>\n<\/div>\n<p>F\u306f<sub>k<\/sub> = k\/1.4\uff08\u6bd4\u71b1\u6bd4\u88dc\u6b63\uff09<\/p>\n<h4 style=\"color: #2d5a87; font-size: 18px; margin-top: 25px; margin-bottom: 15px;\">3.3 \u5b9f\u4f8b\uff1a\u5929\u7136\u30ac\u30b9<\/h4>\n<div style=\"background: #f8fafc; border: 1px solid #e2e8f0; padding: 25px; margin: 20px 0; border-radius: 8px;\">\n<p style=\"margin: 0 0 15px 0; color: #1e3a5f; font-weight: 600;\">\u51e6\u7406\u6761\u4ef6\uff1a<\/p>\n<ul style=\"margin: 0; padding-left: 20px; color: #475569;\">\n<li>\u5a92\u4f53\uff1a\u5929\u7136\u30ac\u30b9\u3001\u6bd4\u91cd\uff1d0.65<\/li>\n<li>\u6d41\u91cf\uff1a5000 SCFH<\/li>\n<li>P\u2081 = 164.7 psia\u3001P\u2082 = 114.7 psia<\/li>\n<li>\u6e29\u5ea6\uff1a100\u00b0F\uff08560\u00b0R\uff09<\/li>\n<li>k = 1.3<\/li>\n<\/ul>\n<p style=\"margin: 20px 0 10px 0; color: #1e3a5f; font-weight: 600;\">\u8a08\u7b97\uff1a<\/p>\n<ol style=\"margin: 0; padding-left: 20px; color: #475569; line-height: 1.8;\">\n<li>\u0394P = 50 psi\u3001\u0394P\/P\u2081 = 0.304 &lt; 0.5 \u2192 \u4e9c\u81e8\u754c<\/li>\n<li>Cv = 5000 \/ (1360 \u00d7 \u221a(50 \u00d7 114.7 \/ (0.65 \u00d7 560)))<\/li>\n<li>Cv = 5000 \/ (1360 \u00d7 3.97) = <strong>0.93<\/strong><\/li>\n<\/ol>\n<\/div>\n<h3 id=\"steam-cv\" style=\"color: #1e3a5f; font-size: 24px; margin-top: 40px; margin-bottom: 20px; border-bottom: 2px solid #e2e8f0; padding-bottom: 10px;\">4. \u84b8\u6c17Cv\u5024\u306e\u8a08\u7b97<\/h3>\n<div style=\"background: #f0f9ff; border: 2px solid #0ea5e9; padding: 25px; margin: 20px 0; border-radius: 8px;\">\n<p style=\"margin: 0; color: #0369a1; font-size: 16px; font-weight: 600; text-align: center;\">\u98fd\u548c\u84b8\u6c17: Cv = W \/ (63.3 \u00d7 \u221a(\u0394P \u00d7 \u03c1))<\/p>\n<p style=\"margin: 15px 0 0 0; color: #0369a1; font-size: 16px; font-weight: 600; text-align: center;\">\u904e\u71b1\u84b8\u6c17: Cv = W \/ (63.3 \u00d7 F<sub>\u3057<\/sub> \u00d7 \u221a(\u0394P \u00d7 \u03c1))<\/p>\n<\/div>\n<p>\u3053\u3053\u3067\u3001W = \u8cea\u91cf\u6d41\u91cf (lb\/h)\u3001\u03c1 = \u84b8\u6c17\u5bc6\u5ea6 (lb\/ft\u00b3)\u3001F<sub>\u3057<\/sub> \uff1d\u904e\u71b1\u88dc\u6b63\uff081.0\uff5e1.2\uff09<\/p>\n<h3 id=\"actuator-thrust\" style=\"color: #1e3a5f; font-size: 24px; margin-top: 40px; margin-bottom: 20px; border-bottom: 2px solid #e2e8f0; padding-bottom: 10px;\">5. \u30a2\u30af\u30c1\u30e5\u30a8\u30fc\u30bf\u63a8\u529b\u8a08\u7b97<\/h3>\n<h4 style=\"color: #2d5a87; font-size: 18px; margin-top: 25px; margin-bottom: 15px;\">5.1 \u7a7a\u6c17\u5727\u5f0f\u30c0\u30a4\u30e4\u30d5\u30e9\u30e0\u30a2\u30af\u30c1\u30e5\u30a8\u30fc\u30bf<\/h4>\n<div style=\"background: #f0f9ff; border: 2px solid #0ea5e9; padding: 25px; margin: 20px 0; border-radius: 8px;\">\n<p style=\"margin: 0; color: #0369a1; font-size: 16px; font-weight: 600; text-align: center;\">F = P \u00d7 A<sub>e<\/sub> \u00d7 \u03b7<\/p>\n<p style=\"margin: 10px 0 0 0; color: #0369a1; font-size: 14px; text-align: center;\">\u3070\u306d\u4ed8\u304d\u306e\u5834\u5408\uff1aF = P \u00d7 A<sub>e<\/sub> \u2013 k \u00d7 x<\/p>\n<\/div>\n<h4 style=\"color: #2d5a87; font-size: 18px; margin-top: 25px; margin-bottom: 15px;\">5.2 \u8a08\u7b97\u4f8b\uff1a\u63a8\u529b\u8a08\u7b97<\/h4>\n<div style=\"background: #f8fafc; border: 1px solid #e2e8f0; padding: 25px; margin: 20px 0; border-radius: 8px;\">\n<p style=\"margin: 0 0 15px 0; color: #1e3a5f; font-weight: 600;\">\u30a2\u30af\u30c1\u30e5\u30a8\u30fc\u30bf\u306e\u4ed5\u69d8\uff1a<\/p>\n<ul style=\"margin: 0; padding-left: 20px; color: #475569;\">\n<li>\u30c0\u30a4\u30e4\u30d5\u30e9\u30e0\u76f4\u5f84\uff1a200mm<\/li>\n<li>\u4fe1\u53f7\uff1a20\uff5e100 kPa<\/li>\n<li>\u52b9\u7387\u03b7\uff1a0.85<\/li>\n<\/ul>\n<p style=\"margin: 20px 0 10px 0; color: #1e3a5f; font-weight: 600;\">\u8a08\u7b97\uff1a<\/p>\n<ol style=\"margin: 0; padding-left: 20px; color: #475569; line-height: 1.8;\">\n<li>A<sub>e<\/sub> = \u03c0 \u00d7 (0.1)\u00b2 = 0.0314 m\u00b2<\/li>\n<li>F<sub>\u6700\u5927<\/sub> = 100,000 \u00d7 0.0314 = 3140 N<\/li>\n<li>F<sub>\u51fa\u529b<\/sub> = 3140 \u00d7 0.85 = <strong>\u5317\u7def2670\u5ea6<\/strong><\/li>\n<\/ol>\n<\/div>\n<h4 style=\"color: #2d5a87; font-size: 18px; margin-top: 25px; margin-bottom: 15px;\">5.3 \u30d0\u30eb\u30d6\u7de0\u3081\u4ed8\u3051\u30c8\u30eb\u30af\u8981\u4ef6<\/h4>\n<div style=\"background: #f0f9ff; border: 2px solid #0ea5e9; padding: 25px; margin: 20px 0; border-radius: 8px;\">\n<p style=\"margin: 0; color: #0369a1; font-size: 16px; font-weight: 600; text-align: center;\">T = K \u00d7 \u0394P \u00d7 D\u00b3<\/p>\n<\/div>\n<table style=\"width: 100%; border-collapse: collapse; font-size: 14px; margin: 20px 0;\">\n<thead>\n<tr style=\"background: linear-gradient(135deg,#1e3a5f 0%,#2d5a87 100%); color: #fff;\">\n<th style=\"padding: 12px; text-align: left;\">\u30d0\u30eb\u30d6\u306e\u7a2e\u985e<\/th>\n<th style=\"padding: 12px; text-align: left;\">\u30c8\u30eb\u30af\u4fc2\u6570K<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 10px; border: 1px solid #e2e8f0;\">\u30dc\u30fc\u30eb\u30d0\u30eb\u30d6<\/td>\n<td style=\"padding: 10px; border: 1px solid #e2e8f0;\">0.05\uff5e0.15<\/td>\n<\/tr>\n<tr style=\"background: #f8fafc;\">\n<td style=\"padding: 10px; border: 1px solid #e2e8f0;\">\u30d0\u30bf\u30d5\u30e9\u30a4\u30d0\u30eb\u30d6<\/td>\n<td style=\"padding: 10px; border: 1px solid #e2e8f0;\">0.10\uff5e0.30<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 10px; border: 1px solid #e2e8f0;\">\u30d7\u30e9\u30b0\u30d0\u30eb\u30d6<\/td>\n<td style=\"padding: 10px; border: 1px solid #e2e8f0;\">0.20\uff5e0.40<\/td>\n<\/tr>\n<tr style=\"background: #f8fafc;\">\n<td style=\"padding: 10px; border: 1px solid #e2e8f0;\">\u30b0\u30ed\u30fc\u30d6\u30d0\u30eb\u30d6<\/td>\n<td style=\"padding: 10px; border: 1px solid #e2e8f0;\">0.30\uff5e0.60<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3 id=\"selection\" style=\"color: #1e3a5f; font-size: 24px; margin-top: 40px; margin-bottom: 20px; border-bottom: 2px solid #e2e8f0; padding-bottom: 10px;\">6. \u30a2\u30af\u30c1\u30e5\u30a8\u30fc\u30bf\u9078\u5b9a\u624b\u9806<\/h3>\n<div style=\"background: #fef3c7; border-left: 4px solid #f59e0b; padding: 20px; margin: 20px 0; border-radius: 0 5px 5px 0;\">\n<p style=\"margin: 0; color: #92400e; font-weight: 600;\">\u5b89\u5168\u7387\uff1aSF = F<sub>\u5229\u7528\u53ef\u80fd<\/sub> \/ F<sub>\u5fc5\u9808<\/sub> = 1.5 \u2013 2.0<\/p>\n<\/div>\n<h4 style=\"color: #2d5a87; font-size: 18px; margin-top: 25px; margin-bottom: 15px;\">\u9078\u5b9a\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\uff1a<\/h4>\n<ol style=\"padding-left: 20px; color: #475569; line-height: 1.8;\">\n<li>\u30d7\u30ed\u30bb\u30b9\u8981\u4ef6\u306b\u57fa\u3065\u3044\u3066\u30d0\u30eb\u30d6\u306e\u7a2e\u985e\u3068\u30b5\u30a4\u30ba\u3092\u6c7a\u5b9a\u3059\u308b<\/li>\n<li>\u6db2\u4f53\u3001\u6c17\u4f53\u3001\u307e\u305f\u306f\u84b8\u6c17\u30b5\u30fc\u30d3\u30b9\u306b\u5fc5\u8981\u306aCv\u5024\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002<\/li>\n<li>\u30d1\u30c3\u30ad\u30f3\u6469\u64e6\u3092\u542b\u3080\u30d0\u30eb\u30d6\u30c8\u30eb\u30af\/\u63a8\u529b\u3092\u8a08\u7b97\u3059\u308b<\/li>\n<li>\u30a2\u30af\u30c1\u30e5\u30a8\u30fc\u30bf\u306e\u7a2e\u985e\u3092\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044\uff08\u7a7a\u6c17\u5727\u5f0f\u3001\u96fb\u52d5\u5f0f\u3001\u6cb9\u5727\u5f0f\uff09<\/li>\n<li>\u30a2\u30af\u30c1\u30e5\u30a8\u30fc\u30bf\u306e\u51fa\u529b\u304c\u5b89\u5168\u4fc2\u6570\u3092\u8003\u616e\u3057\u305f\u4e0a\u3067\u30d0\u30eb\u30d6\u306e\u8981\u6c42\u5024\u3092\u8d85\u3048\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3002<\/li>\n<li>\u30b9\u30c8\u30ed\u30fc\u30af\u6642\u9593\u304c\u30d7\u30ed\u30bb\u30b9\u5fdc\u7b54\u8981\u4ef6\u3092\u6e80\u305f\u3057\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<li>\u30d5\u30a7\u30a4\u30eb\u30bb\u30fc\u30d5\u4f4d\u7f6e\u3092\u5b9a\u7fa9\u3059\u308b\uff08\u30d5\u30a7\u30a4\u30eb\u30aa\u30fc\u30d7\u30f3\u3001\u30d5\u30a7\u30a4\u30eb\u30af\u30ed\u30fc\u30ba\u3001\u30d5\u30a7\u30a4\u30eb\u30e9\u30b9\u30c8\uff09<\/li>\n<\/ol>\n<h3 style=\"color: #1e3a5f; font-size: 24px; margin-top: 40px; margin-bottom: 20px; border-bottom: 2px solid #e2e8f0; padding-bottom: 10px;\">7. \u30d5\u30a3\u30c3\u30b7\u30e3\u30fc\u30d0\u30eb\u30d6\u9078\u5b9a\u30ea\u30bd\u30fc\u30b9<\/h3>\n<p>\u3053\u308c\u3089\u306e\u8a08\u7b97\u3092\u5b9f\u969b\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u9069\u7528\u3059\u308b\u5834\u5408\u3001, <a style=\"color: #2d5a87; text-decoration: none; font-weight: 600;\" href=\"https:\/\/www.yunrui-controls.com\/ja\/brands\/fisher\/\">\u30d5\u30a3\u30c3\u30b7\u30e3\u30fc<\/a> \u5305\u62ec\u7684\u306a\u30d0\u30eb\u30d6\u30b5\u30a4\u30ba\u6c7a\u5b9a\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3068\u6280\u8853\u6587\u66f8\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002 <strong>\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30d0\u30eb\u30d6\u30cf\u30f3\u30c9\u30d6\u30c3\u30af<\/strong> Cv\u5024\u306e\u8a08\u7b97\u65b9\u6cd5\u3001\u30c1\u30e7\u30fc\u30af\u6d41\u308c\u89e3\u6790\u3001\u304a\u3088\u3073\u9a12\u97f3\u4e88\u6e2c\u306b\u95a2\u3059\u308b\u696d\u754c\u306e\u6a19\u6e96\u898f\u683c\u3067\u3042\u308a\u7d9a\u3051\u3066\u3044\u308b\u3002.<\/p>\n<p>\u904e\u9177\u306a\u4f7f\u7528\u74b0\u5883\u5411\u3051, <a style=\"color: #2d5a87; text-decoration: none; font-weight: 600;\" href=\"https:\/\/www.yunrui-controls.com\/ja\/brands\/fisher\/\">\u30d5\u30a3\u30c3\u30b7\u30e3\u30fc\u306e<\/a> <strong>\u30ab\u30d3\u30c8\u30ed\u30fc\u30eb<\/strong> \u305d\u3057\u3066 <strong>\u3055\u3055\u3084\u304d<\/strong> \u30c8\u30ea\u30e0\u6280\u8853\u306f\u3001\u57fa\u672c\u7684\u306aCv\u5024\u8a08\u7b97\u3092\u8d85\u3048\u305f\u3001\u9ad8\u5727\u640d\u5931\u3084\u9a12\u97f3\u3068\u3044\u3063\u305f\u8ab2\u984c\u306b\u5bfe\u5fdc\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u7279\u6b8a\u306a\u30c8\u30ea\u30e0\u3068\u6b63\u78ba\u306a\u30b5\u30a4\u30ba\u9078\u5b9a\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u904e\u9177\u306a\u30d7\u30ed\u30bb\u30b9\u6761\u4ef6\u4e0b\u3067\u3082\u9577\u671f\u7684\u306a\u4fe1\u983c\u6027\u3092\u78ba\u4fdd\u3067\u304d\u307e\u3059\u3002.<\/p>\n<h3 style=\"color: #1e3a5f; font-size: 24px; margin-top: 40px; margin-bottom: 20px; border-bottom: 2px solid #e2e8f0; padding-bottom: 10px;\">8. \u30af\u30a4\u30c3\u30af\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u516c\u5f0f<\/h3>\n<table style=\"width: 100%; border-collapse: collapse; font-size: 14px; box-shadow: 0 2px 4px rgba(0,0,0,0.1);\">\n<thead>\n<tr style=\"background: linear-gradient(135deg,#1e3a5f 0%,#2d5a87 100%); color: #fff;\">\n<th style=\"padding: 14px 12px; text-align: left; font-weight: 600;\">\u5fdc\u7528<\/th>\n<th style=\"padding: 14px 12px; text-align: left; font-weight: 600;\">\u5f0f<\/th>\n<th style=\"padding: 14px 12px; text-align: left; font-weight: 600;\">\u5358\u4f4d<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 12px; border: 1px solid #e2e8f0; font-weight: 600;\">\u6db2\u4f53\uff08\u7a92\u606f\u3057\u3066\u3044\u306a\u3044\uff09<\/td>\n<td style=\"padding: 12px; border: 1px solid #e2e8f0;\">Cv = Q \u00d7 \u221a(SG\/\u0394P)<\/td>\n<td style=\"padding: 12px; border: 1px solid #e2e8f0;\">Q: US gpm\u3001\u0394P: psi<\/td>\n<\/tr>\n<tr style=\"background: #f8fafc;\">\n<td style=\"padding: 12px; border: 1px solid #e2e8f0; font-weight: 600;\">\u30ac\u30b9\uff08\u4e9c\u81e8\u754c\uff09<\/td>\n<td style=\"padding: 12px; border: 1px solid #e2e8f0;\">Cv = Q\/(1360\u00d7\u221a(\u0394P\u00d7P\u2082\/(SG\u00d7T)))<\/td>\n<td style=\"padding: 12px; border: 1px solid #e2e8f0;\">Q: SCFH\u3001T: \u00b0R<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 12px; border: 1px solid #e2e8f0; font-weight: 600;\">\u98fd\u548c\u84b8\u6c17<\/td>\n<td style=\"padding: 12px; border: 1px solid #e2e8f0;\">Cv = W\/(63.3\u00d7\u221a(\u0394P\u00d7\u03c1))<\/td>\n<td style=\"padding: 12px; border: 1px solid #e2e8f0;\">W: lb\/h\u3001\u03c1: lb\/ft\u00b3<\/td>\n<\/tr>\n<tr style=\"background: #f8fafc;\">\n<td style=\"padding: 12px; border: 1px solid #e2e8f0; font-weight: 600;\">\u30a2\u30af\u30c1\u30e5\u30a8\u30fc\u30bf\u306e\u63a8\u529b<\/td>\n<td style=\"padding: 12px; border: 1px solid #e2e8f0;\">F = P \u00d7 A<sub>e<\/sub> \u00d7 \u03b7<\/td>\n<td style=\"padding: 12px; border: 1px solid #e2e8f0;\">P: Pa\u3001A: m\u00b2<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 12px; border: 1px solid #e2e8f0; font-weight: 600;\">\u30d0\u30eb\u30d6\u30c8\u30eb\u30af<\/td>\n<td style=\"padding: 12px; border: 1px solid #e2e8f0;\">T = K \u00d7 \u0394P \u00d7 D\u00b3<\/td>\n<td style=\"padding: 12px; border: 1px solid #e2e8f0;\">D: m\u3001\u0394P: Pa<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div style=\"background: #e7f3ff; border-left: 5px solid #0066cc; padding: 20px; margin: 30px 0; border-radius: 0 5px 5px 0;\">\n<p style=\"margin: 0; color: #1e3a5f; font-weight: 600;\">\u30d0\u30eb\u30d6\u306e\u30b5\u30a4\u30ba\u9078\u5b9a\u3067\u304a\u56f0\u308a\u3067\u3059\u304b\uff1f<\/p>\n<p style=\"margin: 10px 0 0 0; color: #475569;\">YUNRUI\u306f\u7d14\u6b63\u54c1\u3092\u4f9b\u7d66\u3057\u3066\u3044\u307e\u3059 <a style=\"color: #2d5a87; text-decoration: none; font-weight: 600;\" href=\"https:\/\/www.yunrui-controls.com\/ja\/brands\/fisher\/control-valves\/\">\u30d5\u30a3\u30c3\u30b7\u30e3\u30fc\u5236\u5fa1\u5f01<\/a>, \u5f53\u793e\u306f\u3001\u4e16\u754c\u4e2d\u306e\u30d7\u30ed\u30bb\u30b9\u7523\u696d\u5411\u3051\u306b\u3001\u30d0\u30eb\u30d6\u3001\u30dd\u30b8\u30b7\u30e7\u30ca\u30fc\u3001\u30a2\u30af\u30c1\u30e5\u30a8\u30fc\u30bf\u30fc\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002\u5f53\u793e\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30a8\u30f3\u30b8\u30cb\u30a2\u306f\u3001\u304a\u5ba2\u69d8\u306e\u7279\u5b9a\u306e\u6761\u4ef6\u306b\u5408\u308f\u305b\u3066\u3001\u30d0\u30eb\u30d6\u306e\u9078\u5b9a\u3001Cv\u5024\u306e\u8a08\u7b97\u3001\u30a2\u30af\u30c1\u30e5\u30a8\u30fc\u30bf\u30fc\u306e\u30b5\u30a4\u30ba\u6c7a\u5b9a\u3092\u30b5\u30dd\u30fc\u30c8\u3044\u305f\u3057\u307e\u3059\u3002.<\/p>\n<p style=\"margin: 15px 0 0 0; color: #475569;\">\u304a\u554f\u3044\u5408\u308f\u305b\u5148 <a style=\"color: #2d5a87; text-decoration: none; font-weight: 600;\" href=\"mailto:sales@yunrui-controls.com\">sales@yunrui-controls.com<\/a> \u307e\u305f\u306f WhatsApp <a style=\"color: #2d5a87; text-decoration: none; font-weight: 600;\" href=\"https:\/\/wa.me\/8618710784030\">+86 187 1078 4030<\/a>.<\/p>\n<\/div>\n<h3 style=\"color: #1e3a5f; font-size: 24px; margin-top: 40px; margin-bottom: 20px; border-bottom: 2px solid #e2e8f0; padding-bottom: 10px;\">\u304a\u3059\u3059\u3081\u306e\u66f8\u7c4d<\/h3>\n<ul style=\"padding-left: 20px; color: #475569; line-height: 1.8;\">\n<li><a style=\"color: #2d5a87; text-decoration: none; font-weight: 500;\" href=\"https:\/\/www.yunrui-controls.com\/ja\/valve-positioner-working-principle-troubleshooting\/\">\u30d0\u30eb\u30d6\u30dd\u30b8\u30b7\u30e7\u30ca\u30fc\u5b8c\u5168\u30ac\u30a4\u30c9\uff1a\u52d5\u4f5c\u539f\u7406\uff0b\u73fe\u5834\u3067\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0<\/a><\/li>\n<li><a style=\"color: #2d5a87; text-decoration: none; font-weight: 500;\" href=\"https:\/\/www.yunrui-controls.com\/ja\/control-valve-accessories-guide\/\">\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30d0\u30eb\u30d6\u30a2\u30af\u30bb\u30b5\u30ea\u30ac\u30a4\u30c9<\/a><\/li>\n<li><a style=\"color: #2d5a87; text-decoration: none; font-weight: 500;\" href=\"https:\/\/www.yunrui-controls.com\/ja\/fisher-dvc6200-positioners-emerson-ams-trex\/\">Fisher DVC6200 \u30dd\u30b8\u30b7\u30e7\u30ca\u30fc\uff1aEmerson AMS Trex \u3092\u4f7f\u7528\u3057\u305f\u69cb\u6210<\/a><\/li>\n<li><a style=\"color: #2d5a87; text-decoration: none; font-weight: 500;\" href=\"https:\/\/www.yunrui-controls.com\/ja\/control-valve-waterproof-and-moisture-proof-measures\/\">\u5236\u5fa1\u5f01\u306e\u9632\u6c34\u30fb\u9632\u6e7f\u5bfe\u7b56\uff1a\u7523\u696d\u7528\u4fdd\u8b77\u5bfe\u7b56\u5b8c\u5168\u30ac\u30a4\u30c9<\/a><\/li>\n<li><a style=\"color: #2d5a87; text-decoration: none; font-weight: 500;\" href=\"https:\/\/www.yunrui-controls.com\/ja\/transmitter-zero-migration-guide-positive-vs-negative-migration-explained\/\">\u9001\u4fe1\u6a5f\u30bc\u30ed\u79fb\u884c\u30ac\u30a4\u30c9\uff1a\u6b63\u79fb\u884c\u3068\u8ca0\u79fb\u884c\u306e\u9055\u3044\u3092\u89e3\u8aac<\/a><\/li>\n<li><a style=\"color: #2d5a87; text-decoration: none; font-weight: 500;\" href=\"https:\/\/www.yunrui-controls.com\/ja\/radar-level-transmitter-frequency-guide\/\">\u30ec\u30fc\u30c0\u30fc\u30ec\u30d9\u30eb\u9001\u4fe1\u6a5f\u5468\u6ce2\u6570\u30ac\u30a4\u30c9<\/a><\/li>\n<li><a style=\"color: #2d5a87; text-decoration: none; font-weight: 500;\" href=\"https:\/\/www.yunrui-controls.com\/ja\/temperature-transmitter-configuration-and-application-a-complete-technical-guide\/\">\u6e29\u5ea6\u30c8\u30e9\u30f3\u30b9\u30df\u30c3\u30bf\u30fc\u306e\u69cb\u6210\u3068\u5fdc\u7528\uff1a\u5b8c\u5168\u6280\u8853\u30ac\u30a4\u30c9<\/a><\/li>\n<\/ul>\n<hr style=\"border: none; height: 2px; background: linear-gradient(90deg,#1e3a5f 0%,transparent 100%); margin: 40px 0;\" \/>\n<p style=\"color: #64748b; font-size: 14px;\"><em>\u6700\u7d42\u66f4\u65b0\u65e5\uff1a2026\u5e746\u6708\u00a0<\/em><\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Control Valve Sizing and Actuator Selection: Complete Engineering Calculation Guide Master Cv calculation, thrust analysis, and actuator sizing for process control applications. Technical formulas, worked examples, and field-proven selection methods. Quick Navigation: Cv Fundamentals | Liquid Cv | Gas Cv | Steam Cv | Actuator Thrust | Selection Guide 1. Control Valve Flow Coefficient (Cv) [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":8419,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"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":"default","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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","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":"","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":""}},"ast-content-background-meta":{"desktop":{"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":""},"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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[384,1],"tags":[],"class_list":["post-8417","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","category-blogs"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.8 (Yoast SEO v26.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Actuator and Valve Sizing: Engineering Calculation Methods<\/title>\n<meta name=\"description\" content=\"Engineering methods for control valve sizing and actuator selection. Includes Cv formulas for liquid, gas, and steam with worked calculation examples.\" \/>\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.yunrui-controls.com\/ja\/control-valve-cv-calculation-actuator-sizing\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Actuator Selection and Valve Sizing: Engineering Calculation Methods\" \/>\n<meta property=\"og:description\" content=\"Engineering methods for control valve sizing and actuator selection. Includes Cv formulas for liquid, gas, and steam with worked calculation examples.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.yunrui-controls.com\/ja\/control-valve-cv-calculation-actuator-sizing\/\" \/>\n<meta property=\"og:site_name\" content=\"Fisher, E+H &amp; Rosemount Supplier from China | 100% Original | YUNRUI\" \/>\n<meta property=\"article:published_time\" content=\"2026-06-14T20:33:54+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-14T20:34:56+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/06\/0615.png\" \/>\n\t<meta property=\"og:image:width\" content=\"332\" \/>\n\t<meta property=\"og:image:height\" content=\"517\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"sales@yunrui-controls.com\" \/>\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=\"sales@yunrui-controls.com\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593\" \/>\n\t<meta name=\"twitter:data2\" content=\"5\u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.yunrui-controls.com\/control-valve-cv-calculation-actuator-sizing\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.yunrui-controls.com\/control-valve-cv-calculation-actuator-sizing\/\"},\"author\":{\"name\":\"sales@yunrui-controls.com\",\"@id\":\"https:\/\/www.yunrui-controls.com\/#\/schema\/person\/b9b385704b61e72ea9254fc3b56001af\"},\"headline\":\"Actuator Selection and Valve Sizing: Engineering Calculation Methods\",\"datePublished\":\"2026-06-14T20:33:54+00:00\",\"dateModified\":\"2026-06-14T20:34:56+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.yunrui-controls.com\/control-valve-cv-calculation-actuator-sizing\/\"},\"wordCount\":705,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.yunrui-controls.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.yunrui-controls.com\/control-valve-cv-calculation-actuator-sizing\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/06\/0615.png\",\"articleSection\":[\"News\",\"Blogs\"],\"inLanguage\":\"ja\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.yunrui-controls.com\/control-valve-cv-calculation-actuator-sizing\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.yunrui-controls.com\/control-valve-cv-calculation-actuator-sizing\/\",\"url\":\"https:\/\/www.yunrui-controls.com\/control-valve-cv-calculation-actuator-sizing\/\",\"name\":\"Actuator and Valve Sizing: Engineering Calculation Methods\",\"isPartOf\":{\"@id\":\"https:\/\/www.yunrui-controls.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.yunrui-controls.com\/control-valve-cv-calculation-actuator-sizing\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.yunrui-controls.com\/control-valve-cv-calculation-actuator-sizing\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/06\/0615.png\",\"datePublished\":\"2026-06-14T20:33:54+00:00\",\"dateModified\":\"2026-06-14T20:34:56+00:00\",\"description\":\"Engineering methods for control valve sizing and actuator selection. Includes Cv formulas for liquid, gas, and steam with worked calculation examples.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.yunrui-controls.com\/control-valve-cv-calculation-actuator-sizing\/#breadcrumb\"},\"inLanguage\":\"ja\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.yunrui-controls.com\/control-valve-cv-calculation-actuator-sizing\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\/\/www.yunrui-controls.com\/control-valve-cv-calculation-actuator-sizing\/#primaryimage\",\"url\":\"https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/06\/0615.png\",\"contentUrl\":\"https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/06\/0615.png\",\"width\":332,\"height\":517,\"caption\":\"Fisher FIELDVUE DVC6200 digital valve controller with HART protocol, LCD display, and pneumatic output. Genuine original instrument for control valve positioning and diagnostics. Available from YUNRUI.\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.yunrui-controls.com\/control-valve-cv-calculation-actuator-sizing\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.yunrui-controls.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Actuator Selection and Valve Sizing: Engineering Calculation Methods\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.yunrui-controls.com\/#website\",\"url\":\"https:\/\/www.yunrui-controls.com\/\",\"name\":\"Process Instrument & Valve Supplier from China | YUNRUI\",\"description\":\"YUNRUI is your trusted authorized distributor and stockist in China for original Fisher valves, E+H, and Rosemount instruments. Fast Middle East delivery. Get a quote!\",\"publisher\":{\"@id\":\"https:\/\/www.yunrui-controls.com\/#organization\"},\"alternateName\":\"YRCONTROLS\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.yunrui-controls.com\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"ja\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.yunrui-controls.com\/#organization\",\"name\":\"YUNRUI\",\"alternateName\":\"YUNRUI TRADING\",\"url\":\"https:\/\/www.yunrui-controls.com\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\/\/www.yunrui-controls.com\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/03\/original-yunrui-logo-from-china-supplier-yunrui.png\",\"contentUrl\":\"https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/03\/original-yunrui-logo-from-china-supplier-yunrui.png\",\"width\":512,\"height\":512,\"caption\":\"YUNRUI\"},\"image\":{\"@id\":\"https:\/\/www.yunrui-controls.com\/#\/schema\/logo\/image\/\"},\"telephone\":\"8618710784030\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.yunrui-controls.com\/#\/schema\/person\/b9b385704b61e72ea9254fc3b56001af\",\"name\":\"sales@yunrui-controls.com\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\/\/www.yunrui-controls.com\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/42e338d7dd3c1419e51612bcfd01acd3eca969f2e93b9e49b772042eceaf1030?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/42e338d7dd3c1419e51612bcfd01acd3eca969f2e93b9e49b772042eceaf1030?s=96&d=mm&r=g\",\"caption\":\"sales@yunrui-controls.com\"},\"sameAs\":[\"https:\/\/www.yunrui-controls.com\"],\"url\":\"https:\/\/www.yunrui-controls.com\/ja\/author\/gthgt-space-com\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"\u30a2\u30af\u30c1\u30e5\u30a8\u30fc\u30bf\u304a\u3088\u3073\u30d0\u30eb\u30d6\u306e\u30b5\u30a4\u30ba\u9078\u5b9a\uff1a\u5de5\u5b66\u7684\u8a08\u7b97\u65b9\u6cd5","description":"\u5236\u5fa1\u5f01\u306e\u30b5\u30a4\u30ba\u6c7a\u5b9a\u3068\u30a2\u30af\u30c1\u30e5\u30a8\u30fc\u30bf\u306e\u9078\u5b9a\u306b\u95a2\u3059\u308b\u5de5\u5b66\u7684\u624b\u6cd5\u3002\u6db2\u4f53\u3001\u6c17\u4f53\u3001\u84b8\u6c17\u306b\u5bfe\u3059\u308bCv\u5024\u306e\u516c\u5f0f\u3068\u8a08\u7b97\u4f8b\u3092\u63b2\u8f09\u3002.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.yunrui-controls.com\/ja\/control-valve-cv-calculation-actuator-sizing\/","og_locale":"ja_JP","og_type":"article","og_title":"Actuator Selection and Valve Sizing: Engineering Calculation Methods","og_description":"Engineering methods for control valve sizing and actuator selection. Includes Cv formulas for liquid, gas, and steam with worked calculation examples.","og_url":"https:\/\/www.yunrui-controls.com\/ja\/control-valve-cv-calculation-actuator-sizing\/","og_site_name":"Fisher, E+H &amp; Rosemount Supplier from China | 100% Original | YUNRUI","article_published_time":"2026-06-14T20:33:54+00:00","article_modified_time":"2026-06-14T20:34:56+00:00","og_image":[{"width":332,"height":517,"url":"https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/06\/0615.png","type":"image\/png"}],"author":"sales@yunrui-controls.com","twitter_card":"summary_large_image","twitter_misc":{"\u57f7\u7b46\u8005":"sales@yunrui-controls.com","\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593":"5\u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.yunrui-controls.com\/control-valve-cv-calculation-actuator-sizing\/#article","isPartOf":{"@id":"https:\/\/www.yunrui-controls.com\/control-valve-cv-calculation-actuator-sizing\/"},"author":{"name":"sales@yunrui-controls.com","@id":"https:\/\/www.yunrui-controls.com\/#\/schema\/person\/b9b385704b61e72ea9254fc3b56001af"},"headline":"Actuator Selection and Valve Sizing: Engineering Calculation Methods","datePublished":"2026-06-14T20:33:54+00:00","dateModified":"2026-06-14T20:34:56+00:00","mainEntityOfPage":{"@id":"https:\/\/www.yunrui-controls.com\/control-valve-cv-calculation-actuator-sizing\/"},"wordCount":705,"commentCount":0,"publisher":{"@id":"https:\/\/www.yunrui-controls.com\/#organization"},"image":{"@id":"https:\/\/www.yunrui-controls.com\/control-valve-cv-calculation-actuator-sizing\/#primaryimage"},"thumbnailUrl":"https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/06\/0615.png","articleSection":["News","Blogs"],"inLanguage":"ja","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.yunrui-controls.com\/control-valve-cv-calculation-actuator-sizing\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.yunrui-controls.com\/control-valve-cv-calculation-actuator-sizing\/","url":"https:\/\/www.yunrui-controls.com\/control-valve-cv-calculation-actuator-sizing\/","name":"\u30a2\u30af\u30c1\u30e5\u30a8\u30fc\u30bf\u304a\u3088\u3073\u30d0\u30eb\u30d6\u306e\u30b5\u30a4\u30ba\u9078\u5b9a\uff1a\u5de5\u5b66\u7684\u8a08\u7b97\u65b9\u6cd5","isPartOf":{"@id":"https:\/\/www.yunrui-controls.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.yunrui-controls.com\/control-valve-cv-calculation-actuator-sizing\/#primaryimage"},"image":{"@id":"https:\/\/www.yunrui-controls.com\/control-valve-cv-calculation-actuator-sizing\/#primaryimage"},"thumbnailUrl":"https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/06\/0615.png","datePublished":"2026-06-14T20:33:54+00:00","dateModified":"2026-06-14T20:34:56+00:00","description":"\u5236\u5fa1\u5f01\u306e\u30b5\u30a4\u30ba\u6c7a\u5b9a\u3068\u30a2\u30af\u30c1\u30e5\u30a8\u30fc\u30bf\u306e\u9078\u5b9a\u306b\u95a2\u3059\u308b\u5de5\u5b66\u7684\u624b\u6cd5\u3002\u6db2\u4f53\u3001\u6c17\u4f53\u3001\u84b8\u6c17\u306b\u5bfe\u3059\u308bCv\u5024\u306e\u516c\u5f0f\u3068\u8a08\u7b97\u4f8b\u3092\u63b2\u8f09\u3002.","breadcrumb":{"@id":"https:\/\/www.yunrui-controls.com\/control-valve-cv-calculation-actuator-sizing\/#breadcrumb"},"inLanguage":"ja","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.yunrui-controls.com\/control-valve-cv-calculation-actuator-sizing\/"]}]},{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/www.yunrui-controls.com\/control-valve-cv-calculation-actuator-sizing\/#primaryimage","url":"https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/06\/0615.png","contentUrl":"https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/06\/0615.png","width":332,"height":517,"caption":"Fisher FIELDVUE DVC6200 digital valve controller with HART protocol, LCD display, and pneumatic output. Genuine original instrument for control valve positioning and diagnostics. Available from YUNRUI."},{"@type":"BreadcrumbList","@id":"https:\/\/www.yunrui-controls.com\/control-valve-cv-calculation-actuator-sizing\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.yunrui-controls.com\/"},{"@type":"ListItem","position":2,"name":"Actuator Selection and Valve Sizing: Engineering Calculation Methods"}]},{"@type":"WebSite","@id":"https:\/\/www.yunrui-controls.com\/#website","url":"https:\/\/www.yunrui-controls.com\/","name":"\u4e2d\u56fd\u306e\u30d7\u30ed\u30bb\u30b9\u8a08\u6e2c\u6a5f\u5668\u30fb\u30d0\u30eb\u30d6\u30b5\u30d7\u30e9\u30a4\u30e4\u30fc | YUNRUI","description":"YUNRUI\u306f\u3001\u4e2d\u56fd\u306b\u304a\u3051\u308bFisher\u7d14\u6b63\u30d0\u30eb\u30d6\u3001E+H\u3001Rosemount\u88fd\u8a08\u6e2c\u6a5f\u5668\u306e\u4fe1\u983c\u3067\u304d\u308b\u6b63\u898f\u4ee3\u7406\u5e97\u304a\u3088\u3073\u5728\u5eab\u8ca9\u58f2\u5e97\u3067\u3059\u3002\u4e2d\u6771\u3078\u306e\u8fc5\u901f\u306a\u914d\u9001\u3082\u627f\u308a\u307e\u3059\u3002\u304a\u898b\u7a4d\u3082\u308a\u3092\u3054\u5e0c\u671b\u306e\u5834\u5408\u306f\u3001\u304a\u6c17\u8efd\u306b\u304a\u554f\u3044\u5408\u308f\u305b\u304f\u3060\u3055\u3044\u3002","publisher":{"@id":"https:\/\/www.yunrui-controls.com\/#organization"},"alternateName":"YRCONTROLS","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.yunrui-controls.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"ja"},{"@type":"Organization","@id":"https:\/\/www.yunrui-controls.com\/#organization","name":"\u30e6\u30f3\u30eb\u30a4","alternateName":"YUNRUI TRADING","url":"https:\/\/www.yunrui-controls.com\/","logo":{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/www.yunrui-controls.com\/#\/schema\/logo\/image\/","url":"https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/03\/original-yunrui-logo-from-china-supplier-yunrui.png","contentUrl":"https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/03\/original-yunrui-logo-from-china-supplier-yunrui.png","width":512,"height":512,"caption":"YUNRUI"},"image":{"@id":"https:\/\/www.yunrui-controls.com\/#\/schema\/logo\/image\/"},"telephone":"8618710784030"},{"@type":"Person","@id":"https:\/\/www.yunrui-controls.com\/#\/schema\/person\/b9b385704b61e72ea9254fc3b56001af","name":"sales@yunrui-controls.com","image":{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/www.yunrui-controls.com\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/42e338d7dd3c1419e51612bcfd01acd3eca969f2e93b9e49b772042eceaf1030?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/42e338d7dd3c1419e51612bcfd01acd3eca969f2e93b9e49b772042eceaf1030?s=96&d=mm&r=g","caption":"sales@yunrui-controls.com"},"sameAs":["https:\/\/www.yunrui-controls.com"],"url":"https:\/\/www.yunrui-controls.com\/ja\/author\/gthgt-space-com\/"}]}},"_links":{"self":[{"href":"https:\/\/www.yunrui-controls.com\/ja\/wp-json\/wp\/v2\/posts\/8417","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yunrui-controls.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.yunrui-controls.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.yunrui-controls.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yunrui-controls.com\/ja\/wp-json\/wp\/v2\/comments?post=8417"}],"version-history":[{"count":3,"href":"https:\/\/www.yunrui-controls.com\/ja\/wp-json\/wp\/v2\/posts\/8417\/revisions"}],"predecessor-version":[{"id":8421,"href":"https:\/\/www.yunrui-controls.com\/ja\/wp-json\/wp\/v2\/posts\/8417\/revisions\/8421"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.yunrui-controls.com\/ja\/wp-json\/wp\/v2\/media\/8419"}],"wp:attachment":[{"href":"https:\/\/www.yunrui-controls.com\/ja\/wp-json\/wp\/v2\/media?parent=8417"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yunrui-controls.com\/ja\/wp-json\/wp\/v2\/categories?post=8417"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yunrui-controls.com\/ja\/wp-json\/wp\/v2\/tags?post=8417"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}