Spiral Duct Regulating Damper

1.The regulating damper is made of galvanized steel
2.With a damper blade to controll the air flow.
3.The blade rotation angle can be adjusted from 0°to 90°

Spiral Duct Regulating Damper

RDD

1.Our regulating damper is made of galvanized steel,which is widely used in ventilation area.

2.The air flow through the damper is controlled by the opening angle of the blade.

3.The angle of blade can be adjusted by a handle manually.

4.For the purpose of fixing blade,it’s fixed by a bolt with a wing-nut weight.