同轴式大口径蝶阀加高装置

Heightening Device for Concentric Large-Size Butterfly Valve

介绍了一种安全可靠、操作方便的同轴式大口径蝶阀加高装置,采用有效措施减少加长杆的扭转变形,保证蝶板启闭位置和驱动装置指示位置的一致性。该产品已获国家专利(专利号:ZL201120301003.0)。

The heightening device for concentric large-size butterfly valve is very reliable and easy-oper-ated. It could effectively reduce the torque deformation of extension spindle, ensure that disc open-close position could keep consistent with actuator indicated position.