control valves

From: <shanavas.cholli>
Date: Sat Nov 03 2007 - 03:35:00 EDT

whay control valves are usually one size less than pipe size...what is the use of this reduction..but in some cases i have seen control valves same as pipe size...can u guys tell me why? Received on Sat Nov 03 03:35:00 2007

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