stainless steel check valve

stainless steel check valve:
1.design and manufacture:ANSIB16.34 API600 API602
2.Flange size:ANSI16.5
3.Testing:API598

stainless steel check valves have three bonnet design form. The first kind is bolted bonnet, according to the design of the valve, the design with the bonnet by body bolts, nuts, winding gasket (316 clip flexible graphite sealing, customers make) have special request can also use a metal ring. The second form is designed by welding bonnet, the design of the valve, the valve body form with threaded connections with the bonnet seal, welding, customer special requirement can be adopted when connected through a third, pressure self-tightening bonnet, according to the design of the body and the valve bonnet with threaded connections, inner pressure from dense ring seal.