Opposed Blade Multi Louver Damper

Opposed Blade Multi Louver Damper

The Louver damper is a valve with automatic regulation characteristics, which is composed of valve body, shutter plate, valve shaft, connecting rod mechanism, driving device and other main components. It can be widely used in dust containing cold air or hot air gas pipeline of ventilation and environmental protection engineering in metallurgy, building materials, chemical industry, power station, glass and other industries. As a gas medium flow regulation or cut-off device, it is especially suitable for large diameter, large flow, low pressure difference occasions. It can be used with a variety of actuators to form different performance equipment.

The main body of the damper is welded structure. The disc is composed of several shutter plates which move around their respective rotating shafts. The shaft end is sealed with flexible graphite braided packing, which has the characteristics of high temperature resistance and self lubrication. 

The working principle of the damper is that the output torque of the driving device is transmitted to each valve shaft through the connecting rod mechanism, and the rotation of each valve shaft drives the rotation of their respective shutters to change the cross-sectional area of the pipeline, so as to achieve the function of cutting off the medium in a large area, reducing the medium pressure or regulating the medium flow, and the adjustment angle is 0-90 °.

It has the advantages of simple structure, small flow resistance, light weight, flexible rotation, long service life and convenient operation and maintenance.