Pressure Control Valve

Pressure control valves are found in virtually every Hydraulic System, and they assist in a variety of functions, from keeping system pressures safely below a desired upper limit to maintaining a set pressure in part of a circuit. All of them are normally closed valves, except for reducing valves, which are normally open. For most of these valves, a restriction is necessary to produce the required pressure control. One exception is the externally piloted unloading valve, which depends on an external signal for its actuation.

There are different types of pressure control valves as below:

1. Relief valves

2. Reducing valves

3. Sequence valves

4. shut-off valves