Ventex® Explosion Isolation Valve
An explosion isolation damper is a non-return valve designed to prevent overpressure or flame caused by a downstream explosion (dust collectors, filters, cyclones…) to propagate in the piping system.
The valve is held open by a lever arm. It can be used both at the entrance and at the exit of the filter. This allows isolating the filter from an explosion or an overpressure.
In case of explosion, the valve closes and remains locked preventing the progress of the flame. The unlocking of the flap is done manually.
When idle or rather without air flow, the Closing device is held in the middle position.
In normal operation, the medium flows around the closing device.
In case of an explosion, the pressure wave pushes the closing device against the clos-
ing device seal. The valve is locked in this closed state, preventing the spread of flames and pressure waves.