Parker Pilot Check Valve, Material: Cast Iron, Butt Weld

The Parker Pilot Check Valve is a type of check valve that allows free flow in one direction and blocks flow in the opposite direction until an external pilot pressure is applied. This feature distinguishes them from standard check valves which only allow flow in one direction and cannot be overridden. They are widely used in hydraulic systems to hold loads positively and prevent backflow, thereby enhancing safety and operational efficiency.