Pressure Seal Bonnet
Pressure Seal Bonnet
(OP)
I have attached the drawing of check valve. It looks like bolted bonnet but my manufacturer informs it is a pressure seal bonnet. Can any one explain to me whether the atatched valve is with bolted bonnet or pressure seal bonnet





RE: Pressure Seal Bonnet
this looks like a pretty standard piston check valve to me. a pressure seal should look more like this:
http://www.tianvalve.com/img/english/Forged%20Stee...
the body is tested at 79kg/cm2. that's not a lot of pressure, and you wouldn't need a pressure seal for that...
My focus: Alloy Valves in duplex, super duplex, alloy 20, monel, inconel, incoloy, hastelloy, titanium, 904L, zirconium and uranus Valve Stockist Valvulas
RE: Pressure Seal Bonnet
Your valve and the one shown on the drawing by hsbcn are both Pressure Seal Bonnet Check Valves.
I say this, not because your drawing is labeled "Pressure Seal Bonnet Check Valve" but because the detail of the internals clearly shows the Pressure Seal Bonnet Design.
prognosis: Lead or Lag