Ruixing forged steel check valve is available in three kinds of bonnet design:
(1)Bolted Bonnet: The body and bonnet is connected by bolts with spiral wound gasket (F304+graphite)or metal rings sealed. Metal ring connected is available on customer’s request;
(2)Welded Bonnet: The body and bonnet is screwed and sealed by welding;
(3)Pressure Sealed Bonnet: The body and bonnet is screwed and sealed by inside pressure self-sealed ring.
The check valves are designed with three different kinds of structure. Thy are Lift Check Valve, Ball Check Valve and Swing Check Valve.