Hello all,
i have one doubt regarding gate valve ( 1" 800# threaded end, body: astm b61 c92200, stem:ASTM B150 C63000) pressure test requirements which is made according to API 598 and MSS-SP-80.
AS PER API 598 , TABLE 1 LOW PRESSURE CLOSURE TEST HAS TO BE CONDUCTED
MSS-SP-80,7.3.2.1...