950G Series II Wheel Loader Caterpillar


Pressure Control Valve Introduction

Usage:

950G II AXR


Pressure Control Valves

Introduction

Valves are used to control the flow and the pressure of hydraulic oil in a hydraulic system. Hydraulic valves are grouped into three major categories, based primarily on their function.

The following items are the three major types of hydraulic valves:

  • pressure control valves

  • flow control valves

  • directional control valves

A valve may be constructed in order to combine several of these functions. A valve is usually named for how it functions or how it is constructed.

Pressure Control Valves are used to control the pressure in a circuit or in a system. The primary valve function will remain the same although, the design may change. Examples of pressure control valves include relief valves, sequence valves, pressure reducing valves, pressure differential valves, and unloading valves.

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