{"id":199,"date":"2011-01-04T16:36:15","date_gmt":"2011-01-04T21:36:15","guid":{"rendered":"https:\/\/tunstall-inc.com\/?page_id=199"},"modified":"2023-03-29T09:08:31","modified_gmt":"2023-03-29T13:08:31","slug":"capacity-tables-for-nt-series-valves","status":"publish","type":"page","link":"https:\/\/tunstall-inc.com\/macon-controls\/valves-nt-series-operators\/capacity-tables-for-nt-series-valves\/","title":{"rendered":"Capacity Tables for NT Series"},"content":{"rendered":"

STEAM
\nBTU\/hour <\/strong><\/strong><\/p>\n\n\n\n\n\n\n\n\n
P.D.*<\/sup> with
\n10 PSI Inlet<\/strong><\/td>\n		3.5 Cv<\/sub>
\n1-1\/4″ Valves<\/strong><\/td>\n		2.74 Cv<\/sub>
\n1″ Valves<\/strong><\/td>\n		2.5 Cv<\/sub>
\n3.4″ Valves<\/strong><\/td>\n		1.8 Cv<\/sub>
\n1\/2″ Valves<\/strong><\/td>\n<\/tr>\n
1 psi<\/td>\n48,000<\/td>\n39,000<\/td>\n36,000<\/td>\n28,000<\/td>\n<\/tr>\n
3 psi<\/td>\n87,000<\/td>\n70,000<\/td>\n65,000<\/td>\n46,000<\/td>\n<\/tr>\n
5 psi<\/td>\n113,000<\/td>\n91,000<\/td>\n84,000<\/td>\n63,000<\/td>\n<\/tr>\n
7 psi<\/td>\n130,000<\/td>\n104,000<\/td>\n96,000<\/td>\n72,000<\/td>\n<\/tr>\n
10 psi<\/td>\n162,000<\/td>\n130,000<\/td>\n120,000<\/td>\n90,000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

*P.D. = Pressure Drop
\nCapacity measured with 10 psi inlet preasure.
\nEDR = Equivalent Direct Radiation (in ft.2<\/sup>)
\nEDR = (BTU\/hr) \/ 240
\nBTU\/hr = 240 x EDR
\nBTU\/hour – lbs. steam\/hour x 1000<\/p>\n

HOT WATER
\nBTU\/hour**<\/sup> <\/strong><\/strong><\/p>\n

<\/strong><\/strong><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n
**<\/sup>Pressure Drop
\nFt.<\/strong><\/td>\n		P.D.
\nPSI<\/strong><\/td>\n		3.5 Cv<\/sub>
\n1-1\/4″ Valves<\/strong><\/td>\n		2.74 Cv<\/sub>
\n1″ Valves<\/strong><\/td>\n		2.5 Cv<\/sub>
\n3\/4″ Valves<\/strong><\/td>\n		1.8 Cv<\/sub>
\n1\/2″ Valves<\/strong><\/td>\n<\/tr>\n
1<\/td>\n.43<\/td>\n21,000<\/td>\n17,000<\/td>\n16,500<\/td>\n12,000<\/td>\n<\/tr>\n
2<\/td>\n.87<\/td>\n28,000<\/td>\n23,000<\/td>\n22,000<\/td>\n15,500<\/td>\n<\/tr>\n
4<\/td>\n1.7<\/td>\n44,000<\/td>\n35,000<\/td>\n32,500<\/td>\n23,500<\/td>\n<\/tr>\n
6<\/td>\n2.6<\/td>\n53,000<\/td>\n43,000<\/td>\n40,000<\/td>\n29,000<\/td>\n<\/tr>\n
8<\/td>\n3.5<\/td>\n64,000<\/td>\n51,000<\/td>\n47,000<\/td>\n33,500<\/td>\n<\/tr>\n
10<\/td>\n4.3<\/td>\n70,000<\/td>\n56,000<\/td>\n52,000<\/td>\n37,500<\/td>\n<\/tr>\n
12<\/td>\n5.2<\/td>\n77,000<\/td>\n62,000<\/td>\n57,000<\/td>\n41,000<\/td>\n<\/tr>\n
14<\/td>\n6.1<\/td>\n83,000<\/td>\n67,000<\/td>\n62,000<\/td>\n44,500<\/td>\n<\/tr>\n
16<\/td>\n7.0<\/td>\n88,000<\/td>\n71,000<\/td>\n66,000<\/td>\n47,500<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

EDR (Equivalent Direct Radiation in ft.2<\/sup>) for hot water<\/strong><\/p>\n

<\/strong><\/strong><\/p>\n\n\n\n\n\n
Water Temperature<\/strong><\/td>\nCast Iron Radiator<\/strong><\/td>\nConvector<\/strong><\/td>\n<\/tr>\n
200\u00b0F<\/td>\n209<\/td>\n205<\/td>\n<\/tr>\n
190\u00b0F<\/td>\n187<\/td>\n183<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

BTU\/hour = EDR in ft.2<\/sup> x (Appropriate number from above EDR Table)
\nFor example 205 for 200\u00b0F water in convector.<\/p>\n

**<\/sup>Assumes 20\u00b0F drop in water temperature through radiation.
\nGPM = Cv<\/sup>vP.D.
\nBTU\/hour = GPM x 10,000
\n1Ft. H2<\/sub>O = .433 psi<\/p>\n

BULLETIN: NTCT-1705 – Capacity Tables for “NT” Series Valves<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

STEAM BTU\/hour P.D.* with 10 PSI Inlet 3.5 Cv 1-1\/4″ Valves 2.74 Cv 1″ Valves 2.5 Cv 3.4″ Valves 1.8 Cv 1\/2″ Valves 1 psi 48,000 39,000 36,000 28,000 3 psi 87,000 70,000 65,000 46,000 5 psi 113,000 91,000 84,000 63,000 7 psi 130,000 104,000 96,000 72,000 10 psi 162,000 […]<\/p>\n","protected":false},"author":8,"featured_media":0,"parent":142,"menu_order":6,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/tunstall-inc.com\/wp-json\/wp\/v2\/pages\/199"}],"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=199"}],"version-history":[{"count":1,"href":"https:\/\/tunstall-inc.com\/wp-json\/wp\/v2\/pages\/199\/revisions"}],"predecessor-version":[{"id":86109,"href":"https:\/\/tunstall-inc.com\/wp-json\/wp\/v2\/pages\/199\/revisions\/86109"}],"up":[{"embeddable":true,"href":"https:\/\/tunstall-inc.com\/wp-json\/wp\/v2\/pages\/142"}],"wp:attachment":[{"href":"https:\/\/tunstall-inc.com\/wp-json\/wp\/v2\/media?parent=199"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}