What Is a Hydraulic Power Pack?

A machine that uses hydraulics
••• hydraulic machine image by Heng kong Chen from Fotolia.com

Hydraulic power uses pressurized fluids to run machinery. Hydraulic power packs provide hydraulic power to a valve in another machine.


Hydraulic power packs are stand-alone devices, as opposed to a built-in power supply for hydraulic machinery. Some power packs are large, stationary units and others are more portable. They have a hydraulic reservoir, which houses the fluid, regulators that allow users to control the amount of pressure the power pack delivers to a valve, pressure supply lines and relief lines, a pump and a motor to power the pump.


Hydraulic power packs typically offer a choice of valve connections, allowing users to connect them to a control valve or valves to power a variety of machines. The power pack supplies hydraulic power through a control valve to run another machine.


Hydraulic power packs need regular maintenance to extend their life and to allow safe operation. Maintenance includes checking the tubing for dents, cracks or other problems, changing the hydraulic fluid and checking the reservoir for rust or corrosion.

Related Articles

What Is a Centrifugal Blower?
Hydraulic Jack Information
How a Hydraulic Relief Valve Works
Difference Between Hydraulic Fluid & Oil
How to Convert Horsepower to kWh
Types of Mixing Valves for an Oil Furnace Boiler
How to Install a Flow Control Valve
How to Charge a 12V Battery With a DC Motor
How to Calculate Stream Power
Examples of Gears and Pulleys
How Does a Pump Work?
What Is a Solenoid?
What are Gehl 4625 Skid Steer Specifications?
How Hydraulic Hammers Work
What Is the Dash on a Hydraulic Fitting?
What Is a Condensing Unit?
How Do Pneumatic Controls Work?
How Do Piezoresistive Pressure Sensors Work?
How Does Nuclear Energy Get From the Plant to the Customer?
How to Calculate Motor Efficiency