RDTM
Multi blade tight regulation/adjustment damper
RDTM - Multi blade regulating damper to control/balance airflow in ventilation ductwork. Blades are fitted with EPDM gaskets to provide improved leakage performance.
Properties
•For regulation/adjustment of the airflow
•Very small torque needed to operate the damper
•Manual or electrical actuating
•Standard range from 200 × 200 mm to 2 000 × 2 000 mm
•Leakage acc. EN 1751: - casing leakage: class ATC 3 - closed blade leakage: class 3
•Made of galvanised or stainless steel
•Minimised pressure drop and noise: - two blade sizes - aerodynamic blade profile - casing leading edge cut at angle where appropriate
•Includes a flange for connection to the duct
•Silicone free, halogen free, lead free
•UV stabilisation and flammability suppression class V-0
•Casing, blades and mechanics reaction to fire class A1
Specifications
The RDTM regulating damper is for use in general supply and extract ventilation systems and can be set with a varied blade position to manage the flowrate through the damper. The RDTM damper can be provided in a manual version or in motorised versions with a wide range oaf actuators to met a range of project specific requirements. The damper can also be provided with a bare spindle and mounting plate to allow alternative actuators to be used. The RDTM damper has an aerodynamic design to reduce pressure drop and noise and additional gaskets on the blades to provide improved leakage performance of the damper.