Product name: Tooth circle type fan closure valves
Nominal Diameter: 300～1800mm
Nominal Pressure: 0.05～0.25MPa
Suitable Temperature: 200℃（硅橡膠）300℃（氟橡膠）
Suitable Medium: Gas and poisonous, harmful,
flammable gas
Next product：Gas flame arrester
Backe product：type all-weather resistance fire breathing valve
