Product Usage

Pneumatic series ventilation butterfly valves are manufactured by welding steel plates and have the characteristics of short structural size, light weight and easy installation.

The valve has small driving torque, flexible opening and closing, and easy operation. The valve body is equipped with an oil sealing back-up ring. There is no visible gap between the sealing pairs and the leakage rate is small. The expansion gap between the butterfly plate and the valve body is large, which can effectively prevent jamming caused by thermal expansion and contraction. This valve can be equipped with a variety of driving devices, such as manual devices, worm gear transmission devices, pneumatic devices, and electric devices. Ventilation butterfly valves are widely used in industrial pipelines such as metallurgy, engineering, electricity, building materials, and mining to control or regulate medium gases.

Application scope

The applicable temperature of the ventilation butterfly valve depends on the valve body material selection. The nominal pressure is ≤1.0MPa. It is generally suitable for dusty cold air or hot air gas pipelines in ventilation and environmental protection projects in industry, metallurgy, environmental protection, chemical industry, building materials, power stations, glass and other industries. , as a pipeline control device for regulating flow or cutting off gas media. Ventilation butterfly valves should generally be installed horizontally in pipelines.

Structural features of ventilation butterfly valve

1. The ventilation butterfly valve has a novel and reasonable design, unique structure, light weight and rapid opening and closing.

2. The butterfly valve has small operating torque, easy operation, labor saving and dexterity.

3. Use suitable materials to meet different medium temperatures of low, medium and high, as well as corrosive media, etc.

4. There are no connecting rods, bolts, etc. inside, which ensures reliable operation, long service life, and is not affected by the flow direction of the medium.