{"id":1523,"date":"2011-04-08T16:37:18","date_gmt":"2011-04-08T16:37:18","guid":{"rendered":"https:\/\/tunstall-inc.com\/?page_id=1523"},"modified":"2023-03-29T09:09:10","modified_gmt":"2023-03-29T13:09:10","slug":"valve-selection","status":"publish","type":"page","link":"https:\/\/tunstall-inc.com\/macon-balancing\/y-pattern-globe-style\/valve-selection\/","title":{"rendered":"Valve Selection"},"content":{"rendered":"

Valve Selection Guide<\/strong><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Balancing Valves should be selected according to GPM flows, not line sizes.<\/strong><\/td>\n<\/tr>\n
Valve Size<\/strong><\/td>\nMinimum Flow<\/strong><\/td>\nNominal Range of Flow<\/strong><\/td>\nMaximum Flow<\/strong><\/td>\n<\/tr>\n
Nominal Dimensions<\/strong><\/td>\n<\/tr>\n
Inches<\/strong><\/td>\nmm<\/strong><\/td>\nGPM\/LPM<\/strong><\/td>\nGPM\/LPM<\/strong><\/td>\nGPM\/LPM<\/strong><\/td>\n<\/tr>\n
1\/2<\/td>\nDN 15<\/td>\n0.14<\/strong> \/ .52<\/td>\n0.5 – 3.8<\/strong> \/ 1.89 – 14.36<\/td>\n12.1<\/strong> \/ 45.7<\/td>\n<\/tr>\n
3\/4<\/td>\nDN 20<\/td>\n.26<\/strong> \/ .98<\/td>\n3.8 – 5.5<\/strong> \/ 14.36 – 20.8<\/td>\n17.4<\/strong> \/ 65.7<\/td>\n<\/tr>\n
1<\/td>\nDN 25<\/td>\n.37<\/strong> \/ 1.38<\/td>\n5.5 – 9.5<\/strong> \/ 20.8 – 36<\/td>\n30<\/strong> \/ 113.4<\/td>\n<\/tr>\n
1 1\/4<\/td>\nDN 32<\/td>\n.60<\/strong> \/ 2.28<\/td>\n9.5 – 14<\/strong> \/ 36 – 53<\/td>\n44.6<\/strong> \/ 169<\/td>\n<\/tr>\n
1 1\/2<\/td>\nDN 40<\/td>\n.91<\/strong> \/ 3.46<\/td>\n14 – 20<\/strong> \/ 53 – 76<\/td>\n66.4<\/strong> \/ 251<\/td>\n<\/tr>\n
2<\/td>\nDN 50<\/td>\n1.52<\/strong> \/ 5.76<\/td>\n20 – 33<\/strong> \/ 76 – 125<\/td>\n107.2<\/strong> \/ 406<\/td>\n<\/tr>\n
2 1\/2<\/td>\nDN 65<\/td>\n2.13<\/strong> \/ 8.07<\/td>\n33 – 100<\/strong> \/ 125 – 378<\/td>\n318.3<\/strong> \/ 1205<\/td>\n<\/tr>\n
3<\/td>\nDN 80<\/td>\n4.19<\/strong> \/ 15.9<\/td>\n100 – 117<\/strong> \/ 378 – 442<\/td>\n374.5<\/strong> \/ 1418<\/td>\n<\/tr>\n
4<\/td>\nDN 100<\/td>\n6.09<\/strong> \/ 23<\/td>\n117 – 200<\/strong> \/ 442 – 756<\/td>\n646.8<\/strong> \/ 2448<\/td>\n<\/tr>\n
5<\/td>\nDN 125<\/td>\n7.61<\/strong> \/ 28.8<\/td>\n200 – 320<\/strong> \/ 756 – 1210<\/td>\n1025<\/strong> \/ 3879<\/td>\n<\/tr>\n
6<\/td>\nDN 150<\/td>\n13.7<\/strong> \/ 51.9<\/td>\n320 – 440<\/strong> \/ 1210 – 1663<\/td>\n1447<\/strong> \/ 5477<\/td>\n<\/tr>\n
8<\/td>\nDN 200<\/td>\n30.3<\/strong> \/ 114<\/td>\n440 – 650<\/strong> \/ 1663 – 2460<\/td>\n2100<\/strong> \/ 7940<\/td>\n<\/tr>\n
10<\/td>\nDN 250<\/td>\n76.3<\/strong> \/ 289<\/td>\n650 – 1300<\/strong> \/ 2460 – 4915<\/td>\n4050<\/strong> \/ 15300<\/td>\n<\/tr>\n
12<\/td>\nDN 300<\/td>\n76.3<\/strong> \/ 289<\/td>\n1300 – 1600<\/strong> \/ 4915 – 6050<\/td>\n4750<\/strong> \/ 17590<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Correction For Liquids<\/strong>
\nApplies to liquids other than water. Correct the measured flow (q) by the density (\u03b3) according to this formula.<\/p>\n

Sizing a Balancing Valve<\/strong>
\nWhen the differential pressure and design flow are known, use this formula to calculate Cv value.<\/p>\n","protected":false},"excerpt":{"rendered":"

Valve Selection Guide Balancing Valves should be selected according to GPM flows, not line sizes. Valve Size Minimum Flow Nominal Range of Flow Maximum Flow Nominal Dimensions Inches mm GPM\/LPM GPM\/LPM GPM\/LPM 1\/2 DN 15 0.14 \/ .52 0.5 – 3.8 \/ 1.89 – 14.36 12.1 \/ 45.7 3\/4 DN […]<\/p>\n","protected":false},"author":8,"featured_media":0,"parent":1506,"menu_order":7,"comment_status":"closed","ping_status":"open","template":"","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/tunstall-inc.com\/wp-json\/wp\/v2\/pages\/1523"}],"collection":[{"href":"https:\/\/tunstall-inc.com\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/tunstall-inc.com\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/tunstall-inc.com\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/tunstall-inc.com\/wp-json\/wp\/v2\/comments?post=1523"}],"version-history":[{"count":1,"href":"https:\/\/tunstall-inc.com\/wp-json\/wp\/v2\/pages\/1523\/revisions"}],"predecessor-version":[{"id":86160,"href":"https:\/\/tunstall-inc.com\/wp-json\/wp\/v2\/pages\/1523\/revisions\/86160"}],"up":[{"embeddable":true,"href":"https:\/\/tunstall-inc.com\/wp-json\/wp\/v2\/pages\/1506"}],"wp:attachment":[{"href":"https:\/\/tunstall-inc.com\/wp-json\/wp\/v2\/media?parent=1523"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}