Design and manufactuer:Cast steel gate valve to API 600(ISO 10430) or API 6D;Cast stainless steel gate valve to API 603 or API 600;Forged steel gate valve to API 600 or API 602.

Inspection and Test:API 598, API 600 or API 6D
Connection type:Class 150 to Class 900 are usually connected with bolted bonnet, Class 1500 to Class 2500 are usually of pressurized seal design.

Special gate valve:Cryogentic gate valve, Jacketed gate valve, Bellow sealed gate valve, Extension stem gate valve for underground application, Flat gate valve, ect.

Gate Valve
Standards
Design and Manufacture:Cast steel gate valve to  API 600 (ISO10434) or API 6D;Cast stainess steel gate valve to API 603 or API 600 ;Forged steel gate valve to API 602 .Inspection and Test:API 598, API 600 or API 602.
Hongeond dimension:ASME B16.5 (for NPS??24) ;
ASME B16.47 seriesB   API 605 or ASME B16.47 series A   MSS SP-44 (for NPS>24) .
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.