The quick closing valve is part of an active explosion isolation system. In the event of ignition, it is activated by solenoid valves. Air flows out of a compressed air reservoir into the drive cylinder, closing the slide valve within milliseconds. Both the flames and the spread of pressure are effectively stopped. After having been triggered, the slide valve can be reactivated without needing a repair, and because of its non-destructive operation it can be validated at any time.
No flow losses due to fully open channel
No repairs after triggering
Also suitable for high-pressure levels
Effective for explosions from both directions
Can also be used where dust levels are high
Position can be indicated by proximity switches.
Air pressure switches.
Steel or stainless steel construction.
Automatic or manual opening/closing.
Available in EEX (explosion-proof) versions to intrinsic safety levels.
Full range of seals and gaskets for most applications.
FDA approved liners for pharmaceutical processes