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Wedge Gate Valve

Wegman valves offers various types of gate valves

WegmanValves Douglas Chero forged steel gate valves

Wedge gate valve

Solid wedge gate valve / flexible wedge gate valve​

Wedge gate valves are mostly metal to metal sealing valves where the wedge is screwed down until it is stopped by the seats which are placed under a slight angle. ​

Smaller valves typically have a solid wedge, where bigger ones have a “flexible” wedge. The wedge is flexible so it can it can adapt to the seats without requiring to much force or to have a (quicker) sealing between gate and seat.​

Various design variations are possible: bolted bonnet (the most common), welded bonnet for high pressure forged gate valves, the cast equivalent is a pressure sealed bonnet. ​

Standards typically used with gate valves:​
API 600 the standard for cast gate valves 1”-24”​
API 602 the standard for forged gate valves ¼”-4”​
API 603 the standard for corrosion resistant light wall gate valves ½”-24”​
BS 1414 the Britsh Standard for gate valve (replaced by EN ISO 10434) ¼”-24”​
EN ISO 15761 the European standard for forged gate valves ¼”-4”