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1.      Electric started, with the function of any adjustment, only stop and cut-off. Easy to operate, safe and reliable.

2.      It could continuous realize the action of slow-opening, and quick-opening or quick-closing and slow-closing, and effectively prevent the medium of pump’s outlet back and produce water hammer.

3.      Energy-saving drive, the same with the electric drive motor of ordinary butterfly valve, can achieve the function of faster speed off the small section of the lower torque and high torque slow off..

4.       Installed in the pump outlet, the valve also has the function of check valve and gate valve, so it could instead of the two valves, saving installation space and pipeline cost.

5.      Less flow resistance, when opening, the coefficient less than 0.3, so you could save energy and reduce pipe operation cost.

DV942X/H The main external connection dimensions of modulated butterfly valve (Unit:mm)

(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.