Poppet or Check Shut Off Valves
Leak free sealing of flow in one direction.
Allows flow in only one direction.
Provides positive back pressure on a system when fitted with a spring.
Also used as simple low pressure relief valves.
Fixed spring to control the opening or cracking pressure
Fit valves without springs vertically
Pilot operated can be opened by pilot pressure to allow flow back through valves.
Can be used as leak free directional valves. Typically for low flow, high pressure situations or for very high flows where directional valves are expensive or not suitable.