Double Eccentric Butterfly Valve is an innovative double offset design product with advanced world leading technology. This butterfly valve has a unique structure with ultra reliable sealing performance, wide working conditions and low operation torque.

The double eccentric  butterfly valve`s sealing ring is made of elastomer fit in disc, it availabe be used in unidirectional sealing application, Commonly used in the water or municipal water appliacation.

what makes it different from all the other butterfly valves,is the double eccentric or double offset disc design.

it allows the disc to move off the seat reducing running torque and seat wear,it’s a big advantage compared to the concentric butterfly valves.

Double eccentric butterfly valves,with a seal ring fixed by cover plate,It will make the valve has a nonstop fixing surface on the circle and make the valve didn’t touch the seat at all when it is completely opens. This design will make the seat encounter less friction and accordingly will extend its lifetime. In common application,this bi-directional balance butterfly valve is restricted to class 150.

Here is the production site of our Double eccentric butterfly valve  . 

Nortech is one of the leading industrial valve manufacturers in China with quality certification ISO9001.

Major products: Butterfly Valve, Ball Valve,Gate Valve, Check Valve, Globe Vavlve,Y-Strainers, Electric Acurator , Pneumatic Acurators .