Type AKK

For contaminated air

Plastic circular shut-off dampers for shutting off aggressive media volume flows in air conditioning systems

Maintenance-free damper blade mechanism
Closed blade air leakage to EN 1751, class 3
Casing air leakage to EN 1751, class B

Optional equipment and accessories

Electric actuator
Spring return actuator
Pneumatic actuator
Auxiliary switch with adjustable switching points for capturing the end positions

Application

Plastic circular shut-off dampers Type AKK for shutting off or restricting the airflow in ventilation ducts of air conditioning systems
Suitable for contaminated air

Special features

Damper blade can be actuated manually, electrically or pneumatically
Low-leakage shut-off
Safety function provided by optional spring return actuator

Variants

AKK: Shut-off damper
AKK-FL: Shut-off damper with flanges on both ends

Parts and characteristics

Ready-to-install shut-off damper
Damper blade with blade mechanism

Attachments

Min/Max actuators: Actuators for switching between minimum and maximum volume flow rate setpoint values
Auxiliary switch for capturing the end positions

Construction features

Circular casing
Spigot suitable for ducts according to DIN 8077
Position of the damper blade indicated externally at the shaft extension
All components coming into contact with the airflow are made of plastic (no interior metal parts)

Materials and surfaces

Casing and damper blade made of flame-resistant polypropylene (PPs)
Plain bearings made of polypropylene (PP)
Damper blade seals in chloroprene rubber (CR)

Información técnica

Circular shut-off dampers in PPs plastic for air conditioning systems, available in 6 nominal sizes. Suitable for shutting off or restricting extract air flows containing aggressive substances since all components coming into contact with the airflow are made of plastic (no interior metal parts).

Suitable for duct pressures up to 1500 Pa.

Ready-to-install unit consists of the casing with a damper blade.

Spigot, suitable for ducts according to DIN 8077.

Position of the damper blade indicated externally at the shaft extension.

Closed blade air leakage to EN 1751, class 3.

Casing air leakage to EN 1751, class B.

Special features