The explosion isolation flap valve for your dust applications.
The REDEX® Flap offers you reliable, passive and at the same time inexpensive protection for your production environment. It is ideal for dust-intensive processes, especially in the explosion isolation of filters in combination with explosion relief.
We guarantee safety.
An explosion isolation flap valve protects human life. That is why we work according to strict quality guidelines and have all products certified. The REDEX® Flap is type-tested according to EN 16447 for compliance with the ATEX Directive 2014/34/EU and optionally also NFPA 69.
Explosion isolation flap valve REDEX® Flap. Simply ingenious.
Maximum safety without external energy. Our isolation flap valve is a field-proven, sophisticated solution for passively protecting people and equipment from the spread of an explosion.
DN160 to DN710
Housing made of powder-coated steel, optionally up to corrosion protection category C5 or stainless steel
Position monitoring with inductive proximity switches
Optional monitoring of dust accumulation to comply with NFPA 69
Low pressure drop
Low maintenance, as no damper disc gasket is necessary
How REDEX® Flap works.
The explosion isolation flap valve REDEX® Flap effectively prevents the propagation of explosions in the opposite direction of flow and explosion and guarantees full safety through reliable mechanical interlocking. The short installation distances of the REDEX® Flap enable a cost-efficient and at the same time flexible design of your systems in combination with explosion relief such as bursting discs.
REDEX® Flap in rest position
In the rest position without air flow, the damper disc is in the closed but not locked position. Compared to competitor products, process air can already flow in the home position. This means that low-loss operation is possible even when the system is started up slowly or with very low volume flows. A switch monitors the operational status of the butterfly valve.
REDEX® Flap in normal operation
In normal operation, the damper disc is in the open position and the medium flows around it. The flow both above and below the damper blade keeps it cleanly in position. Unwanted “flapping” of the damper blade is therefore not possible compared to competitor models.
REDEX® Flap after explosion
In the event of an explosion, the pressure wave pushes the damper disc into the closed and locked state. This prevents the spread of flames and pressure waves. A switch indicates the locked state of the non-return valve.
More about REDEX® Flap?
All information, areas of application, applications and technical data on the REDEX® Flap can be found in our product sheets and technical data sheets.
REDEX® Flap in use
Reports and case studies on REDEX® Flap and explosion protection.