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Metal seat ball valve test at double block test

Thread starter Gedan
Start date May 30, 2020

Status: Not open for further replies.

May 30, 2020

Gedan

Petroleum

Hi,
Is it possible to pass a metal seat trunnion ball valve for double block test with no visible leakage?
I get leakage at high pressure due to ball deformation under pressure. Is there any specific Calculation to size the ball for passing this condition?