A hydraulic control check valve provides several functions:
· Free flow in one direction.
· Leak-free load holding.
· Protection against hydraulic line failure.
· Protection against pressure shocks caused by external forces or overrunning loads
· Cavitation-free motion control to match speed to pump flow when a load could cause loss of control of an actuator (cylinder or motor).
· Smooth, modulated motion control when the directional valve is suddenly closed.