Air flow regulator 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 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). 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 and damper blade made of flame-resistant polypropylene (PPs) - Plain bearings made of polypropylene (PP) - Damper blade seals in chloroprene rubber (CR) CONNECTION TYPE - Spigot, suitable for ducts according to DIN 8077 TECHNICAL DATA - Flow rate range: 90 - 900 m³/h - Maximum permissible differential pressure: 1500 Pa - Casing air leakage according to EN 1751: Class C - Casing air leakage according to EN 1751: Class B. - Closed blade air leakage to EN 1751: Class 3