Hydraulic Vane Pumps
– Fixed and Variable Displacement -
Dynamic control, quiet operation and efficiency for advanced hydraulics
Hydraulic vane pumps are well suited to applications requiring a strong balance between performance, quiet operation and efficiency. Thanks to their smooth operation and inherently low noise, they are particularly suitable for industrial systems where where low noise levels are a priority, such as presses, plastics machinery and continuous-duty working environments.
Fluid System, an authorised distributor of brands Berarma and Bosch Rexroth, offers a complete range of vane pumps, both fixed displacement and variable displacement, to meet every requirement: from basic control to advanced flow regulation, up to the highest pressure ratings available.
Vane Pumps: Fixed vs. Variable Displacement
The two design approaches meet distinct application requirements, optimising cost and performance.
FIXED-DISPLACEMENT PUMPS
Flow is proportional to rotational speed. They are the simplest and most cost-effective solution for applications operating at constant speed, where reliability and inherently low noise are the priority.
VARIABLE-DISPLACEMENT PUMPS
Flow is regulated according to system demand. They guarantee maximum energy efficiency, reduced heat generation and lower component wear, making them ideal for variable-duty cycles and energy saving.
Comparison of Vane Pumps
| Characteristic | Fixed-displacement Pumps | Variable-displacement Pumps |
|---|---|---|
| Operating pressure | Up to 320 bar (PVH series) | Up to 250 bar (PHP series) |
| Flow control | Fixed (speed-dependent) | Adjustable (mechanically - hydraulically or electrically) |
| Noise level | Low | Very low (up to 15 dBA quieter than other technologies) |
| Energy efficiency | Good under constant-duty conditions | Excellent - thanks to on-demand flow |
| Application flexibility | Standard - continuous-duty applications | Variable-duty applications where energy saving is a priority |
| Distinctive feature | Simplicity - compactness - competitive cost | Reduced energy consumption - precise flow/pressure control |
| Main brands | Bosch Rexroth | Berarma - Bosch Rexroth |
When to choose which
Choose Vane Pumps if...
- Quiet operation is an important requirement.
- You are looking for an efficient and quieter alternative to gear pumps for medium-pressure applications.
- The application does not require the extreme pressures of piston pumps.
Choose Fixed Displacement if...
- The duty cycle is constant and flow regulation is not required.
- Budget is a decisive factor and maximum simplicity is required.
- The application falls within the pump’s pressure range (e.g. up to 210-320 bar).
Choose Variable Displacement if...
- You want to maximise energy savings by matching flow output to actual demand.
- The duty cycle is variable, with different flow and pressure requirements.
- Precise and dynamic control is required, also integrated with automation (proportional controls).
Explore the available solutions
Fluid System offers vane pumps from the best international brands, selected to ensure high performance, efficiency and long service life. Select a pump type to explore features, available series and application advantages.
Request technical consultancy
Every industrial hydraulic application has specific requirements. Contact us for support in selecting the most suitable pump in terms of flow rate, pressure, duty cycle and control logic.
FAQ - Hydraulic Vane Pumps
The main advantage is energy saving. By adapting flow to the system’s actual demand, electrical consumption, heat generation and component wear are reduced, delivering a fast return on investment in systems with variable duty cycles.
Yes, in general they are. The vane operating principle generates less flow pulsation and vibration than gear pumps. Models such as those from Berarma achieve noise reductions of up to 15 dBA compared with other technologies.
In many cases, yes – especially where greater quietness or flow control is required, if a variable-displacement pump is chosen. It is essential to verify pressure, flow rate and mounting connection compatibility. Our technical team can advise on the best replacement option.
