Flange Butterfly Valve (hard seal) 
Custom processing: Yes
Material: 304 stainless steel 
Suitable medium: water, steam, oil, a variety of acidic and corrosive medium 
Standard: GB 
Parts and accessories: Turbo 
Caliber: DN50 
Specifications: DN50 
Connection: flange 
Pressure environment: ordinary pressure
Flow direction: one-way 
Uses: Cut-off
Nominal Diameter: DN50-DN2000 
Structure: Offset Plate 
Working temperature: Stainless steel: -40 ℃ -640 ℃
Drive mode: Manual 
Type (channel position): straight
Installation size: 2'' -80''