Class IV Leakage

[aggieengineerrmb]

I am looking at a 1" metal seated ball valve with a Cv of 40. What is the maximum allowable leakage rate at 100 PSI for Class IV service?

 

[TD2K]

Look through some of the recent posts, the allowable leakage rates have been posted.

 

[kevinf]

I believe ANSI Class IV leakage rating means less than .01% of the Cv. For your 40, that's .004 gpm.

 

[NGiLuzzu]

I think the relevant answers can be found in
Thread408-45258,
Thread408-23297 and
Thread408-71194
within this Forum.

Bye, 'NGL