Standards

Design and Manufacture: Cast steel gate valve to API600（ISO
10434）; Cast stainless steel gate valve to API 603 or API 600;
Forged steel gate valve to API 602.Inspection and Test: API 598.
End flange dimension: ASME B16.5Јfor NPSЎ24Ј; ASME B16.47
series B, ASME B16.47 series A, MSS SP-44Јfor NPSЈ24Ј.
BW end dimension: ASME B16.25.
Socket-weld dimension: ASME B16.11.
Face to face and end to end: ASME B16.10.
Pressure-temperature ratings: ASME B16.34.