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Posted by Rick on June 14, 2009 at 19:12:55:
In Reply to: Steam Flow through spence valves posted by Kraig on June 14, 2009 at 17:16:13:
: Hello, I am looking for a way to calculate the amount of steam that can flow through a 4" spence valve. The inlet pressure is 125 Lbs. and the outlet pressure is 20 Lbs. I never did any calculations like this before and I believe the flow rate, (Lbs. per.hr) will change as the discharge pressure changes, 19-20 is the area we discharge at.
Depends on the CV through the valve. The easiest way is to contact a Spence rep and ask or go to their website and use their sizing program for the valve you have.