- Designed for use in heating, ventilating and air conditioning systems.
- Both frame and blades are fabricated from high quality G.I sheets(Z-275).
- Joints are welded and protected by aluminium spray coating to prevent rusting.
- Blades are coupled by toothed nylon gears which provides opposed blade operation.
- Hand locking quadrant is provided with clear open/close indication and three intermediate open positions (1/4 – 1/2 – 3/4).
- Foam gasket is sealed across the blade edges to minimize air leakage between the blades.
- Flanged edges are supplied un-drilled as standard.
- Dampers without flanges available as option for duct insertion purpose.
Options:
- Frame: Thickness up to 2mm upon request.
- Blade: Double skin aerofoil type G.I blade of thickness 0.7mm.
- Handle: Cast Aluminium.
- Bush: Brass bush, S.S. Ball Bearing.
- Gear Wheel:Aluminium Alloy.
- Low Leakage:S.S Jamb seal.
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