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PLease Help with Safety Valve Capcity Calculation

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Posted by Al the boiler guy on December 25, 2003 at 18:26:37:

Hello,

I'm studying for my red seal and have a a question. When I use W = A*(P+10)/.2 on a known safety valve ie 2", 30 psi, 6530lbs/hr it doesn't work. Will someone please tell me why? A = 2*2*.7854 = 3.1416
3.1416*40/.2 = 628.32
Your help will be much appreciated,
Al

Follow Ups:

Thanks but.......... Al the boiler guy 09:01:42 12/29/2003 (0)
Steam Relief Valve Capacity Bob D. 07:11:45 12/29/2003 (0)

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