Flow
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LucyInTheSky
- Specialist 2
- Posts: 293
- Joined: Fri Apr 21, 2006 11:46 am
I am going to buy a 3/4" QEV and need to have a safty ballvalve in front of it, I was thinking if the flow of the QEV is 7.81Cv and the flow of a 1/2" Ballvalve is 8.053Cv then will I need a 3/4" Ballvalve safty or will it make no difference if I used a 1/2" Ballvalve?
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boilingleadbath
- Staff Sergeant 2
- Posts: 1635
- Joined: Sat Mar 12, 2005 10:35 pm
- Location: Pennsylvania, USA
Depends on which ballvalve you get; alot of those 1/2" ballvalves don't have .5" porting. I'd go with the 3/4" ballvalve just so you don't have to buy a bushing.