Main performance and characteristic of damper:

(1) for coal, smoke, dust, gas and other media; working temperature are less than 450

(2) DD41 series round throttle has common type and wearable type, which can be chosen by users, so as to guarantee the service life of the throttle.

(3) DD42 series square air door has various forms from single shaft to six axle.

(4) manual, worm gear, electric and other transmission modes can be used.