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pressure seal bonnet forged steel gate valve

Bonney forge valves are available in two bonnet designs. the first design is the bolted bonnet, with male-female joint, spiral wound gasket, made in f316l/graphite. ring joint gasket are also available on request. the second design is the welded bonnet, with a threaded and seal welded joint.
The basic concept of pressure seal valves is that the initial bonnet pull up bolts tighten the bonnet which inturns seals the pressure seal gasket to the body. then the system pressure assist for more force to seal the gasket. hence, as system pressure increases, the potential for leakage through the body/bonnet joint decreases.
Pressure seal (forged and cast steel) valves. ... bellows seal bolted bonnet high pressure valves (large forged) ... velan bolted bonnet flexible wedge gate valves are ideal for high pressure steam, catalytic reformers, hydrocrackers and other tough services. stronger, leakproof bolted body bonnet joint ensures joint tightness with a higher ...
Forged steel gate valves, pressure seal bonnet. specifications; downloads; video; specifications. fig no. ... kvt-gate-forged-cl1500.pdf (112.5 kb) microsoft wordom-manual hp valves standard r18 enga4 (417.4 kb) ... videos. ds kjp assembly instruction hp valves parallel slide gate valve dn150-600 / 6-24 hp valves p.o. box 50040 nl-7554 ...

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