Ventilation butterfly valve is widely used to control or adjust media and gas in the industrial line of metallurgy, petroleum chemical, power, building material and pipeline.

Main performance and parameters
1.Nominal pressure: 0.1Mpa, 0.5Mpa
2.Strength test : 0.2Mpa, 1Mpa
3.Media flow speed: 25m/s
4.Media temperature: -30°C--350°C
5.Suitable media: Cold and heat wind, smoking gas
6.Leakage ratio ≤1%