Perfect tightness ensured by the silicone membrane, is the main advantage of this non-return valve, the Dalap GBV for square ducts. In the resting state, stable closing of the membrane is ensured by a magnet.
Dalap GBV square - odor return flap
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Perfect tightness ensured by the silicone membrane, is the main advantage of this non-return valve, the Dalap GBV for square ducts. In the resting state, stable closing of the membrane is ensured by a magnet. This eliminates the possibility of unintended momentary opening of the flap itself (e.g. during gusts of wind). The intensity of the magnet can be adjusted and easily set by tightening or loosening the screw as required.
Advantages of the Dalap GBV odour and vapour-proof non-return valve
- - prevents the unwanted return of air that has already been expelled
- - perfect tightness prevents the ingress of odours and vapors from the outside environment
- - minimizes noise penetration
- - magnetic force regulation for trouble-free opening and closing
- - easy installation in a square duct
Perfect tightness ensured by the silicone membrane, is the main advantage of this non-return valve, the Dalap GBV for square ducts. In the resting state, stable closing of the membrane is ensured by a magnet.