Pressure regulators are used to control and regulate the compressed air in systems. They reliably protect against the maximum permissible pressure being exceeded or they limit the working pressure in a pneumatic system. Festo has three different pressure regulators for a wide range of requirements.
Our mini pressure regulating valve type LR-3,3 keeps the working pressure largely constant regardless of pressure fluctuations in the network and general air consumption, so it reliably regulates the operating pressure completely independently of the fluctuating input pressure. LR-3,3 is a directly controlled diaphragm control valve with secondary exhausting, which can be mounted on a sub-base in any installation position. It can be used at a maximum outlet pressure of 8 bar in a temperature range from -10 to +60 °C and at only 0.050 kg is a real lightweight among the pressure regulators.
The pressure regulator VRPA, which is used for pressure reduction, also belongs to the group of pressure regulators. Our attractive, compact and strong classic can be installed directly between two tubes, inline or on the valve terminal itself. VRPA regulates operating pressure independent of fluctuating inlet pressure and features secondary relieving and reverse flow characteristics. Due to the movement-specific pressure adjustment, the valve has a significantly higher energy efficiency than other pressure control valves – if the full network pressure is not required, VRPA helps to save energy. It is controlled directly, is optionally available with a pressure gauge and is connected either on both sides via a plug-in connection or via the thread.
Thedifferential pressure regulators LRL and LRLLcontrol a manually set differential pressure between the input pressure applied to the screw-in thread and the output pressure at the plug-in connection. A check valve integrated in the LRL and LRLL allows the pressure at the plug-in connection to escape without changing the pressure at the connecting thread. Both pressure regulators are very small and can also be rotated 360°, making them very versatile. The pressure regulation range of the LRL and LRLL is between 2 ... 6 bar. Please note that neither product has an exhaust function, i.e. a rising output pressure cannot be reduced. LRL and LRLL can be connected to your pneumatic application via the thread or a plug-in connection on the top or side.