Cv over/under %

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dhampton
Posts: 1
Joined: Tue Dec 14, 2010 5:15 pm

Cv over/under %

Post by dhampton »

When evaluating someone elses control valve sizing, how much cv over/under flow is acceptable? For exampe: a calculated flow of 2.2 cv, actual valve is 10 cv. Is this in an acceptable range? Thanks.
admin
Site Admin
Posts: 375
Joined: Mon Feb 08, 2010 7:47 pm

Re: Cv over/under %

Post by admin »

Declared valve Cv is for maximum capacity, which means that your will work with some 22% of full capacity - it is not ideal but I think it can work.
If you are buying new one than it is better to choose other.
Pipe flow calculations - since 2000
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