Manual ventilation volume control valve (manual multi blade ventilation control valve)

Manual multi blade ventilation control valve is suitable for fresh air delivery, exhaust gas emission, and air purification projects in ventilation and air conditioning systems of industrial plants and civil buildings. It can be used for both air volume regulation and shutdown. Through experimental testing, it has been determined that the regulating valve has good air tightness performance, with a relative air leakage rate of no more than 5%.

The multi blade ventilation control valve is divided into manual and electric types, and the cross-sectional size of the valve is made according to the national ventilation standard duct size. There are two types of manual ventilation control valves: handle type and handwheel type. The insulation type regulating valve is equipped with a 35mm thick insulation layer on the inner side of the connecting rod, made of polystyrene material. It is easy to install on site and has a beautiful appearance.