Posts Tagged ‘API6D’
API6D, Testing Procedure & Double Block & Bleed versus Double Isolation & Bleed
September 13th, 2017 by Amanda Schumann
The API6D test for a factory tested ball valve in regard to seat leakage only requires seat leakage to pass test on the second seat on the other end of the valve in both directions. There is not a mandatory double block and bleed cavity drain test requirement unless especially requested by the customer. Consequently, […]