• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer

Mobile Hydraulic Tips

Mobile Hydraulic Tips focuses on pumps, fittings, valves, manifolds and other products and news in the Mobile Hydraulics industry.

  • Hydraulics Blog
  • Industry News
  • Engineering Basics
  • Components
    • Cylinders
    • Fittings / Couplings
    • Pumps / Motors
    • Sensors / Gauges
    • Valves / Manifolds
    • Related components
  • Design Guide Library
  • Advertise
  • SUBSCRIBE

What hydraulic pump type is best for my HPU design?

June 4, 2018 By Mary Gannon

Share

By Josh Cosford, Contributing Editor

The type of pump you choose for your power unit affects the nature of the HPU build. Pump choice boils down to cost, complexity and performance. There are three major types of pumps: the gear pump, the vane pump and the piston pump. There are other, less common pumps, but we’ll stick to these three for this discussion.

Gear pumps are economical, but on the low end of the efficiency range. They’re reliable and durable, but efficiency tends to drop over time. Remember, a pump’s job is to convert incoming mechanical energy into hydraulic energy, and the more efficiently it does so not only allows you to choose a smaller motor, but more efficiency saves you money over time. Traditional spur gear pumps average about 80% efficiency, meaning your 10 input horsepower will net you 8 hydraulic horsepower.

Gear pump advantages: economical, reliable, easy to install
Gear pump disadvantages: inefficient, noisy

Vane pumps reside in the middle ground between gear and piston pumps. They’re more efficient than gear pumps, but less so than piston pumps. Vane pumps are quiet, making them popular for industrial applications. They’re also available with myriad control options, such as pressure compensation, load sensing and displacement control. Vane pumps typically cannot handle high-pressure circuits, however.

Vane pump advantages: quiet, moderately efficient, many control options
Vane pump disadvantages: low pressure

Piston pumps take up the premium end of the range. They’re capable of very high pressure, and have nearly infinite methods of control, including pressure compensation, load sensing, servo control, horsepower control, etc. They’re also very efficient; some designs are capable of 95% efficiency, allowing you to get the most from your prime mover. Their downside is cost, both for initial investment, and for service and repair.

Piston pump advantages: efficient, high pressure, many control options
Piston pump disadvantages: costly, complex, noisy

You may also like:

  • L-Shaped Reservoir
    Which tank style is best for my HPU?
  • T-Shaped-Resevoir-hydraulic-power-unit-HPU
    What components make up hydraulic power units or HPUs?

  • Fluid power Q&A with: Gordon Weiler, Daman Products

  • Parker BLA Boost Unit Simplifies Building of Hydrostatic Transmissions

  • The Right Pump for the Job

Filed Under: Components, Mobile Hydraulics Blog, Pumps / Motors

Primary Sidebar

Fluid Power Design Guides

fluid
“mht
EXPAND YOUR KNOWLEDGE AND STAY CONNECTED
Get the latest info on technologies, tools and strategies for Fluid Power Professionals.

Fluid Power World Digital Editions

Fluid Power World is written by engineers for engineers engaged in designing machines and or equipment in Off-Highway, Oil & Gas, Mining, Packaging, Industrial Applications, Agriculture, Construction, Forestry, Medical and Material Handling. Fluid Power World covers pneumatics, mobile hydraulics and industrial hydraulics.

Footer

Mobile Hydraulic Tips

FLUID POWER WORLD NETWORK

  • Fluid Power World
  • Hose Assembly Tips
  • Pneumatic Tips
  • Sealing and Contamination Tips
  • Fluid Power Distributor Lookup

MOBILE HYDRAULIC TIPS

  • Subscribe to our newsletter
  • Advertise with us
  • Contact us
  • About us

Copyright © 2025 · WTWH Media LLC and its licensors. All rights reserved.
The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media.

Privacy Policy