FOR LOW-LEAKAGE SHUT-OFF
Circular shut-off dampers for shutting off volume flows in ventilation ducts of air conditioning systems
Maintenance-free damper blade mechanism
Closed blade air leakage to EN 1751, up to class 4
Casing air leakage to EN 1751, class C
Optional equipment and accessories
Electric actuator
Spring return actuator
Pneumatic actuator
Auxiliary switch with adjustable switching points for capturing the end positions
Circular shut-off dampers for shutting off or restricting the airflow in ventilation ducts of air conditioning systems, for supply air or extract air, available in 7 nominal sizes Ready-to-install shut-off damper, unit consists of the casing with damper blade. Position of the damper blade indicated externally at the shaft extension.
SPECIAL CHARACTERISTICS
- Damper blade can be actuated manually, electrically or pneumatic
- Low-leakage shut-off
MATERIALS AND SURFACES
- Casing, damper blade and shaft made of galvanised sheet steel
- Blade seal made of TPE plastic
- Plastic bearings
CONNECTION TYPE
Spigot with groove for lip seal, suitable for connecting ducts according to circular ducts to EN 1506 or EN 13180
TECHNICAL DATA
- Flow rate range: 90 - 900 m³/h
- Maximum permissible differential pressure: 1500 Pa
- Casing air leakage according to EN 1751: Class C
- Closed blade air leakage to EN 1751: Class 3