Self seal Type Gate Valve
Model No: Z61Y
Basic standar
Design standard: JB/T 7746, API602
Face to face: JB/T 7746, API 602;
Thread / Weld standard: JB/T 1751 / GB 7306; ANSI B16.11 / B 2.1
Test standard: JB/T 9092, API 598
Pressure & temperature standard: GB/T 9131, MSS SP 25