Manual air damper

The gate valves (totally in thermoplastic material) can adjust in a very simple way the air flow through the reduction of the pipeline through the damper on which there is a graduated scale that indicates the percentage of opening and closing of the section. The locking in the desired position is achieved with screws and nuts. It is possible to create a "battery" of valves by assembling the necessary number of valves through special aluminum profiles. The plastic material guarantees the duration, the lightness and recyclability. Available in versions for air tubes D.80-90-100-120-150