Ventilation butterfly valve is made of the same material as the valve body to form a sealing ring. Its applicable temperature depends on the material selection of the valve body. Generally, the nominal pressure is less than 0.6 Mpa. Generally, it is suitable for power plants.

Metallurgy and environmental protection are used as cutting off and regulating hot air medium.
The main characteristics are as follows:
1. Ventilation butterfly valve is novel, reasonable, unique in structure, light in weight and quick in opening and closing.
2. The butterfly valve has the advantages of small operating moment, convenient operation and smart labor-saving.
3. Using suitable materials to meet the temperature and corrosive medium of different media at low, medium and high temperatures.