Professional Industrial Valves Manufacturer

Flange eccentric rotary control valve structure

by:Mech     2020-11-07

according to the need of a control Industrial Valves structure is eccentric plug valve, Sometimes called the eccentric rotating plug valves) , which combined by min, reliable butterfly valve and ball valve of many factors. Say simply, eccentric plug valve is a rotary Industrial Valves, it USES a valve core are partial swing plane into the seat and close the valve, like eccentric butterfly valve. But the eccentricity of the valve core oscillating movement out of the flow channel, and the fan Joan valve approximation. All in all, this structure provides a very small open torque and tight shut, don't need too much force actuator. Figure 4. The internal structure of 33 said eccentric plug valve.

eccentric XuanQian Industrial Valves could dispose since 1450 psi ( 100bar) The pressure drop. Dysprosium heart movement can also avoid the water hammer effect and the size of the butterfly valve is the difference between the range. Don't like ball valve, the ball often keep in contact with the sealing, when open the valve core to leave the seat. Only in the valve is closed, there are only contact with the seat and partial wear ( Figure 4. 34) - - - Its characteristics similar to as rich core. Because the valve core is swinging away from the logistics area, like the fan ball valve, it allows a larger flow capacity and avoid the wear process medium.

for the stability of the valve core structure, eccentric plug valve provides superior stability, and its amplitude range is greater than 100:1. Compared by the fujian of 50:1, butterfly systematically. Only amplitude range (spherical control min has good High to 400:1) 。 Because the shaft and the valve core is inserted directly to the logistics, the flow capacity is slightly less than Qu valve, but better than most high functions of check valve and screw valve. Its structure allows the reasonable pressure drop across the valve. Eccentric cock cosette can be well applied in the working condition of medium pressure drop. In normal operation, the eccentric cock Lv - in logistics - shut down or logistics Open under the condition of the same work. The structure of the valve core allows flow direction to assist the valve closed or open. When the eccentric rotating basket valve opens, inherent flow characteristics for linear characteristic. The outer surface of the regulating elements in logistics borders, can produce smaller craft turbulence.


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