Pressure Relief Valves

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.

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.

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.

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.

Release valves can be used in the food & beverage, chemical, oil & gas, petrochemical, pharmaceutical, power generation and water treatment industry.

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.