Double Concentric Butterfly Valve

DN50~DN1200

Simple design, excellent performance and wide applications 
Reasonable bubble-less sealing design can give small torque need
Adopts flange design with good centering capability  
Firm rubber liner provides high reliability in running operation
Minimized operating torque, energy-saving 
Taper pins connection stem and disc, driving credibility
Easy to install and maintain, mounted wherever needed
Ideal for throtting or shutting off the flow of corrosive gases and solid powder