control valve basic question
control valve basic question
(OP)
when a control valve is specified as a 12X8 or 4X2 what do these two dimensions mean. One is the line size and the other? thank you
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control valve basic question
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RE: control valve basic question
RE: control valve basic question
RE: control valve basic question
RE: control valve basic question
The EWT is likely balanced with about FCI Class IV shutoff. I think that these are in-line with larger body expanders to accommodate either noise or cavitation control trim. One of the specialty valve bodies was canted about 30 degrees but I don't think that it was the EW series. The expanded end valves apply to high pressure drop and high velocity applications with larger pipe size due to the velocity. It is common to have the piping a few sizes larger than the control valve but where the reduced piping velocity is still reasonable.
RE: control valve basic question
RE: control valve basic question
A 4 x 2 EWT valve is a 4" body with a 2" trim. (This is nominal, and not exact size.)
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