In pneumatics, stop valves allow the controlled opening and closing of piping and thus of the compressed air supply. In addition to check valves and quick exhaust valves, Festo also offers shut-off valves, ball valves and logic valves for pneumatic applications.
Check valves and quick exhaust valves combine the function of flow control and stop valves in one component. The compressed air can flow freely in one direction, while in the opposite direction the flow rate can be changed by an adjusting element. Check valves and quick exhaust valves are often used with pneumatic cylinders to regulate speed. A stop valve that has been very successful in pneumatics and is therefore part of our Core Range is the HGL with a piloted non-return function. The HGL has an external thread so it can be screwed in, it is pneumatically piloted and is compatible with M5, G1/8...G1/2 connections as well as fittings QS-4...QS-12. The stop valves H, HA and HB with non-return function can be used for a wide range of applications thanks to the connecting threads and plug-in connection on both sides. The piloted check valve VBNF has a low overall height, can be rotated 360° horizontally when mounted and allows a high flow rate. The valves SE, SEU and VBQF are suitable for quick exhausting. The latter stands out thanks to its low installation height, high flow rate and reduced noise emission.