RENOWELL HYDRAULICS

Hydraulic engineering center

Learn the fundamentals, understand pump specifications and prepare better purchasing questions. Practical explanations for equipment buyers and maintenance teams.

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What does a hydraulic pump actually do?

Understand the role of the pump, the difference between pressure and flow, and the other components that make a system work.

Read the introduction ›

Explore 7 industry applications ›Try the flow calculator ›Browse technical documents ›

Understand the mechanismAnimated vane-pump introduction ›Calculate the flowDisplacement, speed and efficiency ›Check a replacementIdentification and interfaces ›Find source documentsAvailable series datasheets ›

Find a guide

8 guides

Replacement

Identify a pump before ordering a replacement

A practical checklist for the nameplate, shaft, flange, ports and operating conditions that define a replacement enquiry.

Read guide ›Pump selection

Prepare a hydraulic pump specification

Turn a machine requirement into a useful purchasing brief, from operating points to installation and documentation.

Read guide ›Fundamentals

How does a hydraulic pump work?

Follow the energy path from the drive motor to the machine’s movement, and understand why flow and pressure are different.

Read guide ›Pump selection

Vane, gear and piston pumps: what is different?

Understand the three common pumping mechanisms before comparing individual series and specifications.

Read guide ›Calculations

Displacement, speed and flow explained

Calculate theoretical flow, understand the units and see why a catalog displacement is not a guaranteed measured output.

Read guide ›Pump selection

Single, double and triple pumps

Learn how multiple pumping sections affect the model information and specifications you need to supply.

Read guide ›Maintenance

Noise, heat or low flow: what information should you collect?

Prepare a useful service enquiry without assuming that every hydraulic-system problem is caused by the pump.

Read guide ›Technical documents

How to read a pump datasheet

Turn a technical PDF into a practical purchasing checklist: model code, operating limits and installation dimensions.

Read guide ›

Common hydraulic terms

Displacement: Nominal fluid volume moved by the pump per shaft revolution, usually expressed in cm³/rev.
Flow rate: Fluid volume per unit of time, commonly expressed in L/min.
Pressure: Force per unit area. Common hydraulic units include bar and MPa.
Volumetric efficiency: Delivered flow divided by theoretical flow at a stated operating condition.
Duty cycle: The sequence of operating conditions and the time spent in each stage.
Mounting interface: The physical connection between pump and equipment, including flange, pilot and shaft details.

Talk to Renowell about your next pump

New equipment, repeat orders or a replacement. Send us your requirements.

Request a quotation ›