The WM-05 Series dampers are aluminium volume control dampers for rectangular duct with horizontal counter-rotating blades. They find their application in the control, regulation, balancing and calibration of the air distribution net. The movement transmission is realized thanks to a gear train while the blades profile allows a good holding characteristic in total closing.

Technical data

• Extruded aluminium damper frame of 65 mm width
• Duct flanges frame 30 mm
• Minimum and maximum dimensions 100x61mm and 800x861 mm
• Aluminium counter-rotating blades with aerodynamic profile and 50 mm pitch
• Tamboured section blades and groove extremity to improve closing
• Movement transmission through composite gear train in PBT base
• Fixing through screws on duct or UTA panel
• Manual control provided aside
• Servomotor available already installed on WM-05P model
• Operative temperature from -30 up to +130 °C