louver damper

It has the characteristics of light weight, small flow resistance, simple structure and flexible start-up

Simple structure, small flow resistance, light weight, flexible rotation, long service life, convenient operation and maintenance The shaft end is sealed with flexible graphite braided packing, which has the characteristics of high temperature resistance and self lubrication It is especially suitable for large diameter, large flow and low pressure difference It can be used with a variety of actuators to form different performance equipment

Many blades, low noise, light weight, small operating torque, low leakage rate, especially suitable for large diameter, large flow, low pressure difference range.

1. It is convenient and quick to open and close, with low fluid resistance and easy operation. 2. Simple structure, small size, short structure length, small volume, light weight, suitable for large caliber valve. 3. It can transport mud and store the least liquid at the pipe mouth. 4. Under low pressure, good sealing can be achieved. 5. Good regulation performance. 6. When the valve seat is fully open, the effective flow area of the valve seat channel is large and the fluid resistance is small. 7. The opening and closing torque is small, because the butterfly plates on both sides of the rotating shaft are basically equal to each other under the action of medium, and the direction of torque is opposite, so it is easier to open and close. 8. The sealing surface materials are generally rubber and plastic, so the low-pressure sealing performance is good. 9. Easy to install. 10. The operation is flexible and labor-saving. Manual, electric, pneumatic and hydraulic modes can be selected.

The main body of the valve 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 valve 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.

Fit anywhere in ducting Compact, no bonnet, little external clearance needed. Lightweight Drive and linkage more readily accessible Control function simple with opposed blades. Low leakage to outside environment. Good modulation and control characteristics.