Product features

Eccentric crankshaft, hemispherical structure
The eccentric principle is used, that is, the valve body flow center is not concentric with the crankshaft. During the closing process of the valve, the ball crown gradually enters into the valve seat to realize reliable sealing at the moment of approaching, so as to avoid that the seal is always in the friction state and the valve ball is hemispherical. In the open state of the valve, the spherical crown is hidden in the valve cavity to prevent the medium from directly washing the sealing sleeve; at the same time, the whole flow path of the valve is ensured, and the energy loss and head loss are almost the same Zero.

Small installation space
The installation height of the valve is smaller than that of the gate valve of the same specification, similar to that of the butterfly valve, and its structural length is smaller than that of the same specification. The ball valve is also similar to the valve. The installation is not limited by the water flow direction and installation space. It can be installed at any angle. It can be repaired and maintained online without removing the pipeline.

Double seal
A fluorine rubber seal ring is sintered on the stainless steel ball crown which is finely processed and grinded by special technology. It has two kinds of sealing, soft and hard. It can also achieve reliable sealing even when the soft seal is worn or damaged. According to different conditions, the eccentric hemisphere valve structure will be applied to the valve seat.

Labor saving bearing
The upper and lower valve stems are equipped with thrust bearing and composite shaft sleeve to reduce transmission torque.

Working principle of hydraulic control eccentric hemisphere valve

The eccentric hemispherical valve uses the high-pressure oil produced by the oil pump to push the movement of the cylinder piston, and then drives the valve rod to rotate through the crank transmission mechanism to open the door plate. When it is necessary to close the rotary cooling valve, press the valve closing button, and the solenoid valve can be powered on to open the oil discharge circuit. Under the power of energy storage hydraulic control, the door plate is closed according to the program of first fast and then slow, so as to achieve the purpose of energy storage hydraulic control.