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1.Unique structure, design flexibility, light weight, effort, open and close quickly.

 

2.Telescopic butterfly valve not only could compensate for thermal expansion and contraction resulting from temperature reduction function, but also provide convenient for the valve maintenance and installation replacement.

 

3.Seal replacement parts can be adjusted, reliable sealing performance.

(1)Clean cavity and the sealing surface; dirt adhesion is not allowed.

(2)Check whether the conjunction of the thread is evenly tightened.

(3)Check whether the packing is compressed in order to keep the seal of the packing.

(4)Check whether the switch button and the porous socket of the electric device are in normal condition when installing the electric valve

(5)Check whether the electrical devices function well.