Flexible couplers are used to eliminate vibrations transmited from the fan of other ventilation devices to the ventilation system, as well as to compensate to some extant the ventilation ducts resulting from temperaturę elongation. It is used in ventilation devices in temperatures ranging from -40oC to +80oC.
BZZ backflow prevention device
The BZZ damper prevents uncontrolled air flow in the opposite direction when the ventilation system is switched off.
The BZZ backflow prevention device is designed to automatically close the cross-section of circular ventilation ducts and prevents uncontrolled reverse air flow when the ventilation system is switched off. The blades of the non-return flap open under the pressure caused by the air flow and are closed by return springs.
Related Products
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ALIZÉ HYGRO, TEMPO and VISION humidity-sensitive or timed extract vents fall within the scope of Technical Opinion for humidity-controlled ventilation systems ALIZÉ 2018. They adjust extraction air flow rates in wet rooms (kitchens, bathrooms, toilets) according to the relative humidity and feature boost timers for additional extraction.
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CAR backflow prevention device
A CAR, airtight backflow prevention device, is used in ventilation systems fitted for round ventilation ducts. It prevents the so-called air backflow and protects rooms against cooling in the winter.