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ANSI Class Leakage for Valves

Thread starter AED
Start date May 20, 2004

Status: Not open for further replies.

May 20, 2004

AED

Mechanical

Hello,

I would like to test an 8" valve according to ANSI Class VI Leakage criteria. We normally do a hydro and measure leakage rate. However, I would like to use air for an upcoming job in which we have to test at vacuum. Can anyone tell me if there is a conversion or rule of thumb for volumetric leakage rate to pressure drop? Thanks for the help.