Forging steel internal thread, socket and check valve

1. Design and manufacture DBS5352 MSS SP-118
2. Connection size
1) the socket size is ANSI B16.11; JB/T175
2) the thread end size ANSI B1.20.1; B/T7306
3) the weld end size is ANSI B16.25;
J B/T12224
4) the flange end size is ANSI B16.5; JB79
3. Valve inspection and test:
API 598; GB/T13927; JB/T9092
4. Structure feature s:
Bolt connection valve cover (B.B) Bolted bonnet