The most common use of valves are to limit or hold work pressure in hydraulic application. For example if some hose in application break, valve is needed to hold the actuator in the same position and protects against falling down.
Flow adjustment valves
Modular valves
Pressure adjustment valves
Directional valves
Stainless steel check valves
Cetop Solenoid valves
Proportional solenoid valves
Cetop manifold blocks
Block valves
Overcenter valves
Coils, Connectors and drivers