Y type cut-off valve with internal thread and socket welding
1. the design and manufacture of to BS5352MSS SP-118;
2. Connection end size
1) the socket size is ANSI B16.11; JB/T1751
2) the thread end size is ANSI B1.20.1; JB/T7306
3) the weld end size is ANSI B16.25;JB/T12224
4) the flange end size is ANSI B16.5; JB79
3. Valve check and test: API 598, GB/T13927, JB/T9092