HIGH PERFORMANCE Pump Selection

Choosing the Right Pump

• Step 1 - Select the hydraulic cylinder that best suits the application.
• Step 2 - Select the series of hydraulic pump with adequate oil output and reservoir capacity to power cylinder. Check speed/selection chart on page 6.
• Step 3 - Select pump within series with the valve option that is best suited to the cylinder and application.

CONSIDERATIONS:

• What maximum system operating pressure (psi) is required?
• What volume of oil delivery is required? (For manual pumps, cu. in. of oil per handle stroke; for powered pumps, cu. in./min. of oil).
• Is a single- or 2-speed pump required? (2-speed pumps deliver high oil volume at low pressure for rapid cylinder piston advance, then shift to to the high pressure, low volume stage under load).
• What is the preferred source of power?
• a) Manual (hand or foot operated). Provides portability, can be used where electricity or shop air are not available.
• b) Air/Hydraulic. Uses shop air or a portable air compressor.
• c) Electric /Hydraulic. What voltage is available? Is a battery operated pump preferred?
• d) Gasoline Engine/Hydraulic. Powers high-output pumps at remote job sites where air or electricity are unavailable.
• Is portability of the pump a factor to consider?
• Will the pump be used intermittently, or will it need to provide high-cycle operation?
• Does the application require that the pump be capable of starting under load?
• Is fluid heat build-up a factor in your application?
• High cycle applications may require a larger capacity oil reservoir for cooling. Also, if you are using large displacement cylinders, the reservoir capacity must be sufficient to fully extend the piston of the cylinder.
• Will the application require large displacement or multiple cylinders? Reservoir size and pump output levels will be factors to consider.
• Does the working environment require a pump having a low operating noise (dBA) level?
• Must the pump operate in a spark-free environment?