Typical Pressure Seal Bonnet Swing Check Valves

Cast Steel Pressure Seal Bonnet Swing Check Valves This illustration represents a typical Kinka pressure seal bonnet swing check valve. There will be some minor modifications in each class, type and size.
1. Body with seal-welded seat ring which is hard faced with stellite.
2. Bonnet
3. Disc 
4. Gasket Ratainer is either a segmented ring (Type A) or one-piece threaded ring (Type B).
5. Bonnet Clamp
6. Bonnet Bolts
7. Gasket
8. Hinge
9. Hinge Pin
10. Nut is furnished for sizes 4" and smaller of Type B design.