Pressure Relief Valves

The leading Bosch Rexroth range of pressure relief valves is designed to ensure your hydraulic equipment performs optimally. It meets the highest engineering standards with optimal valve construction, supported with comprehensive support from Bosch Rexroth Africa.

Direct Operated - Pressure Relief Valves

For high-grade hydraulic systems safety at extreme pressures up to 630 bar. Bosch Rexroth has fully tested and refined this range.


Pilot Operated - Pressure Relief Valves

For safer, leak free operation up to 315 bar, the pilot operated range of pressure relief valves provides fully-certified standards and quality.


Need help choosing the ideal pressure relief valve for your hydraulic systems?

Choose from over 500 different components in our extensive range of products, including pressure release valves from Bosch Rexroth Africa.

Other than pressure release valves, we offer:

In addition to our sizeable range of products, we also offer world-class repair, installation, service, testing and calibration in our facilities to meet the requirements of any application. Enquire to optimise your operations with our pressure relief valves.

Bosch Rexroth Africa is Africa’s largest hydraulics components, products and systems supplier. Contact us for more information.

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Frequently asked questions:

What does a pressure relief valve do?
Pressure relief valves, also known as release valves, are normally a closed type of valve and are only opened to relieve a system from an excess of pressure. The pressure relief valve limits pressure in one or more locations in a hydraulic or pneumatic system for protection from excess pressure.
How does a pressure relief valve work?
If the pressure inside a hydraulic or pneumatic system exceeds the pre-set level, the valve opens to release the fluid or air to the reservoir tank, returning to the normal pressure of the system in question.
How are the limits of a pressure release valve adjusted?
Pressure release valves can be adjusted to accommodate different limits depending on the size of the pressure release valve. This can be done by adjusting the screw or knob on the pressure relief valve.
What are the three types of pressure relief valves?
Three types of pressure release valves include direct operated pressure release valves, pilot operated pressure relief valves, and proportional pressure relief valves.
Direct pressure relief valves have a simple design and are relatively inexpensive, pilot operated relief valves offer high precision, and proportional relief valves are ideal for applications where pressure needs to be maintained within a narrow range.
Need help with determining the best pressure relief valve for your application? Send us your requirements and an expert will be in touch with you.
Where are pressure relief valves needed?
Release valves can be used in the food & beverage, chemical, oil & gas, petrochemical, pharmaceutical, power generation and water treatment industry.
Are pressure relief valves necessary?
Pressure relief valves are necessary in some applications and are, in general, a safety device for a range of applications. Pressure relief valves could reduce downtime and unnecessary maintenance. Contact us with your application’s requirements and one of our experts will advise you on what will be best to optimise your applications.


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