Pressure relief valves
These valves are used as pressure limiting devices to protect hydraulic systems.
Pressure reducing valves
Pressure reducing valves are pressure limiting devices that limit pressure in one portion of a circuit while leaving system pressure unaffected.
As the name implies, sequence valves control a sequence of operations. Sequence valves usually use a pressure signal to shift a spool, thereby opening or closing a flow path at a pre-set pressure.
Check valves and pilot operated check valves
Check valves allow free flow in one direction and block flow in the opposite direction.
Pilot operated check valves are used to prevent a load from dropping in case of hose or tube failure or from drifting caused by directional control valve spool leakage.
Counterbalance valves are used to control the motion of a load in the following ways: – prevent a load from dropping in case of hose or tube failure or from drifting caused by directional control valve spool leakage. – provide smooth, modulated motion when the load is in a lowering or run‑away mode or when the directional control valve is suddenly closed.
Needle valves provide adjustable, non-compensated flow control. They are available with standard or fine adjust, and with a variety of knob adjusting options.
Flow regulator pressure compensated valves
Pressure compensated flow control valves are used to limit or regulate flow.
Directional solenoid valves
Solenoid valves are electrically-operated, on-off poppet or spool-type valves for load holding, blocking, or directional control applications.