● The eccentric design can reduce wear and prolong service life. Eccentric hemispherical valve adopts eccentric design. When the valve shaft rotates 3 ~ 5 degrees, the ball crown and valve seat will be separated. In other words, the eccentric hemisphere valve in the process of opening and closing, the sealing pair has no contact, no friction, reduce wear, the ball crown and seat are protected, the valve service life is long.

● Low head loss. When the valve is opened, the ball crown is hidden behind the valve core under the drive of the valve core. There is no obstruction in the flow channel. The water head loss is small and the energy consumption is reduced.

● Good sealing performance. When closing, the force of the medium pushes the ball crown against the valve seat. The greater the water pressure is, the better the sealing performance is and the better the self sealing property is.

● Low height. Eccentric hemisphere valve has the full diameter of gate valve and the same height as butterfly valve.

● Cutting debris. The ball crown of sealing pair is designed as a sharp knife edge, which can cut off the sundries in the closing process, and continue to close without leakage.

● Online maintenance. It is not necessary to take the valve out of the pipeline during maintenance, but to open the valve cover for maintenance.

● Various operation types. It can be operated by manual worm gear, electric, pneumatic, hydraulic and other devices. It can also be configured with hydraulic control device to form a hydraulic check eccentric hemisphere valve, which is used for starting and checking waterproof hammer at pump outlet.