At Universal Supplies (Clydesdale) Ltd carry out hydraulic and pneumatic equipment repair in theUK. One of the areas we deal with is the supply and repair of hydraulic power units.
Hydraulic power units provide pressurized flow to hydraulic motors, cylinders, and other hydraulic components. Hydraulic power units (HPUs) differ from pumps, as an HPU contains a fluid reservoir, multiple pump stages and coolers to keep fluid at a safe working temperature. Performance specifications, physical characteristics, and features are all important parameters to consider .
Performance specifications to consider when selecting HPUs include operating pressure, flow, total power, and reservoir capacity. The operating pressure is the pressure the power unit can deliver at the outlet. The power unit may be expressed as a single pressure rating, or it can be rated to operate over a range of pressure. The fluid flow through the power unit may be a single rating, or have low and high rating points. The total amount of power the motor / pump can draw or is rated to operate. Some power units have multiple power sources, and this specification is the power available from all sources. Power is measured in horsepower, or similar units. The capacity of the power unit reservoir is measured in gallons or similar units. Some units may have interchangeable or modular reservoirs with a range of capacities.
Physical specifications to consider for hydraulic power units include the pump type, power source, cooling method, and unit weight. All hydraulic power units have some type of integrated pump. Some units are available with multi-stage pumps, which perform like multiple pumps connected in series. Pump types available for HPUs include single stage, double stage, three or more pump stages, and multiple pump units. Power sources include electric motor, diesel engine, gasoline engine, and pneumatic compressor. The cooling method can be none, heat exchanger, or fan-driven oil cooler. The unit weight is also important to consider.
For supply and repair of HPUs please contact our office. Contact us for hydraulic and pneumatic equipment repair in the UK.