Hydraulic Vane Pumps

Hydraulic Vane Pumps for Mobile and Industrial Systems

Hydraulic vane pumps are widely used in hydraulic systems that require smooth flow, stable operation and reliable performance. They are commonly found in industrial equipment, construction machinery, mobile hydraulic systems and other applications where consistent hydraulic delivery is important.

HPM Hydraulic offers hydraulic vane pumps, replacement vane pumps and vane pump cartridges identified by manufacturer references, OEM numbers, displacement and technical model designations.

What Is a Hydraulic Vane Pump?

A hydraulic vane pump uses sliding vanes installed in a rotating rotor. As the rotor turns inside the pump housing, the vanes form chambers that increase and decrease in volume, drawing hydraulic oil into the pump and delivering it to the pressure side of the system.

Vane pumps are frequently selected because they can provide:

• smooth hydraulic flow,
• stable operation,
• relatively low noise levels,
• compact construction,
• good efficiency,
• serviceable cartridge designs in selected pump series.

Applications of Hydraulic Vane Pumps

Hydraulic vane pumps can be used in:

• industrial hydraulic systems,
• construction machinery,
• mobile equipment,
• machine tools,
• hydraulic power units,
• material handling equipment,
• selected agricultural applications.

Single and Double Vane Pumps

Vane pumps are available in different configurations, including single and double vane pumps.

A double vane pump combines two pumping sections in one housing. This configuration can supply two different hydraulic circuits or provide different flow requirements from one drive.

When replacing a double vane pump, the displacement and configuration of both sections must be verified.

Vane Pump Cartridges

Some hydraulic vane pump designs use a replaceable vane pump cartridge. The cartridge typically contains the rotor, vanes, cam ring and associated internal components.

Replacing the cartridge may be an option when the pump housing and other external components remain serviceable.

When selecting a cartridge, check:

• pump series,
• cartridge size,
• displacement or flow rating,
• rotation direction where applicable,
• manufacturer reference.

How to Select the Correct Hydraulic Vane Pump

OEM Number and Pump Model

Start with the OEM number or full pump model designation. Vane pump model codes often contain important information about pump size, displacement, shaft type and configuration.

Always compare the complete model code rather than only the basic pump series.

Displacement and Flow

The replacement pump must provide the required hydraulic flow for the system. Depending on the manufacturer, vane pumps may be identified by displacement, flow rating or series-specific size codes.

Direction of Rotation

Rotation direction must match the original installation. Depending on the pump design, clockwise and counter-clockwise versions may use different internal configurations.

Shaft and Mounting

Verify:

• shaft type,
• shaft dimensions,
• mounting flange,
• bolt pattern,
• inlet and outlet connections,
• port orientation.

Replacement Hydraulic Vane Pumps

When searching for a replacement hydraulic vane pump, use the maximum amount of information available from the original unit.

Prepare:

• machine manufacturer and model,
• pump manufacturer,
• full pump designation,
• OEM reference,
• rotation direction,
• shaft type,
• mounting configuration.

Common Symptoms of Vane Pump Wear

Possible symptoms of vane pump wear include:

• reduced hydraulic flow,
• increased operating noise,
• unstable system performance,
• reduced pressure capability,
• hydraulic oil overheating,
• loss of efficiency when the oil becomes hot.

Contaminated hydraulic oil can accelerate wear of the vanes, rotor and cam ring. Correct filtration and clean hydraulic fluid are therefore important for pump service life.

Why Correct Vane Pump Selection Matters

A hydraulic vane pump must be compatible with the complete hydraulic system. Incorrect displacement, rotation direction or mechanical configuration can result in reduced performance or component damage.

Correct selection helps provide:

• stable hydraulic flow,
• smooth system operation,
• correct machine performance,
• lower risk of excessive heat,
• longer pump service life.

Hydraulic Vane Pumps from HPM Hydraulic

HPM Hydraulic supplies hydraulic vane pumps, replacement pumps and vane pump components for mobile and industrial hydraulic applications.

If you cannot identify the correct pump, provide the complete pump reference, machine model and photographs of the original unit.

Vane Pump Repair and Related Components

For servicing or rebuilding vane pumps, browse our hydraulic pump spare parts and hydraulic seal kits.

For applications where hydraulic power must be converted into rotary motion, see our complete range of hydraulic motors.

FAQ – Hydraulic Vane Pumps

What is a hydraulic vane pump?

A vane pump uses sliding vanes mounted in a rotor to draw in and discharge hydraulic oil, creating flow for the hydraulic system.

What is a vane pump cartridge?

A cartridge is the internal pumping assembly containing components such as the rotor, vanes and cam ring. In selected pump designs it can be replaced separately.

How do I identify the correct vane pump?

Use the complete model code, OEM reference, displacement or flow rating, rotation direction, shaft type and mounting configuration.

Why is my vane pump noisy?

Noise may be caused by cavitation, low oil level, suction restrictions, contaminated fluid, aeration or internal pump wear.

Can I replace only the cartridge instead of the complete pump?

In some pump designs, yes. The housing and other external components must be in serviceable condition and the cartridge must match the exact pump series and specification.