Harrier pneumatics has a vast range of pump overrun systems to integrate with any plant room set up you may require.

Pump overrun will shut down a diaphragm pump when it starts to speed up due to lack of product, it can also be sued as a low level shut off valve, the pump overrun valves have an integrated flow control of pump speed.

We have the following variations of the pneumostop systems

(pump-overrun prevention valves):

• ¾” bsp with a manual start button
• ½” bsp with a manual start button
• ½” bsp with air pilot start and air pilot stop and manual stop and start buttons suitable for setting up.
• Remote start, twin button version available for air piloted start/stop valves