Ventilation Butterfly Valve
Custom processing: Yes
Material: Stainless Steel 
Applicable medium: air 
Standard: GB 
Parts and accessories: Accessories 
Caliber: DN50-2000 
Connection: flange 
Pressure environment: ordinary pressure
Flow direction: one-way 
Uses: Exhaust 
Nominal Diameter: DN50-2000 
Structure: Leveraged 
Working temperature: room temperature 
Drive mode: Electronic 
Type (channel position): two formula