The Pressure Control Valve: Function & Structure

All hydraulic systems are marked with operating pressure. This has to be “regulated”! There are many different products and categories in the pressure regulating valves. You can find a suitable offer and all the details about pressure regulating valves on our website.

What Is A Pressure Regulating Valve?

There is no getting around the pressure control valve when it comes to hydraulic pressure control. In hydraulics and pneumatics, the pressure control valve stands for, as the name suggests, a component that regulates pressure fluctuations and keeps them constant. Here, the inlet pressure is regulated to an outlet pressure predefined in the pressure control valve.

The Function Of A Pressure Control Valve

Pressure control valves are mainly used to counteract pressure peaks. The set pressure remains constant, regardless of whether the incoming pressure is above or below the target pressure.

Which Pressure Is The Right One?

There are 2 types of identification for hydraulic and pneumatic systems. In physics, the pressure (bar) is given as a symbol in “p” and “l / min” as the flow rate. You can find information about the right print in the enclosed article for our products.

Hydraulic components such as valves provide information about the pressure that should be applied. The manufacturer prescribes which represents the optimal resolution for the respective device. Pressure-regulating valves are used to protect the corresponding components or to be able to guarantee their function completely.


During installation, make sure to switch off the system and all associated consumers. For your safety, installation is entirely pressureless. The supply lines must be clean and free of wear!

First, you bring the pressure control valve into the installation position – the direction of flow must be observed! Arrows or numbers that mark the entrance and exit serve as orientation. Then use the enclosed seals following the instructions.

After all screw connections have been tightened, and the lines can be opened again, the next step is to check the valve for leaks and leaks, as these can affect the inlet and outlet pressure.


An arrow shows the direction in which the pressure is to be regulated. The manometer indicates how high the outlet pressure should be regulated. It can either be operated (turned) by hand or with a tool – in hydraulics, an Allen key is usually used.

Commissioning – Pressure Regulating Valves

Pressure valves are always delivered with a relaxed spring. In other words, no defined default settings have been made at the factory. First, you loosen the safety nut of the adjusting screw. Then you turn the adjusting screw clockwise – a look at the pressure gauge reveals the pressure in the rear chamber. Once the pressure has been set, the last thing to do is tighten the safety nut – this prevents the adjusting screw from loosening by itself due to vibration and movement. To get great offers, you can visit our website.