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揭阳AW pneumatic butterfly valve actuator

揭阳AW pneumatic butterfly valve actuator

  • Category:揭阳AW pneumatic actuator
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  • Release time:2021-11-11 07:55:53
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Operating system principle of AW pneumatic butterfly valve

AW pneumatic butterfly valve is composed of pneumatic actuator and butterfly valve, which is used to control solid materials. It is usually used as the drain valve at the bottom of the water tank, such as cement tank, stone powder tank, etc., for drainage and rapid cutting. Improper selection will greatly reduce the service life of the valve and seriously affect its use.

Therefore, during operation, the motor vibration time is generally extended, and all materials shall be vibrated before the valve is closed as far as possible; Adjust the zero point of the weighing instrument until all materials come out. PLC sends a signal to close the valve; The double eccentric elastic hard sealing butterfly valve is used to replace the three eccentric butterfly valve (the central line sealing rubber butterfly valve can also be used). Considering that there are occasionally large particles in the material, the rubber seal may not be durable - if it is a fine powder without particles, soft sealing butterfly valve can be considered). Because the seat of the triple eccentric butterfly valve is an inclined sealing surface, that is, a surface seal, the material is easy to accumulate on the sealing surface, and cannot be discharged quickly. Single eccentric or double eccentric butterfly valves do not have this disadvantage. Even if there is a little material on the sealing surface, the valve will be scraped off by the valve plate when it is closed to ensure good sealing and durable sealing surface.

In such a system, there are other factors to be considered. For example, when the materials are put into the car from above, they should not directly rush to the valve plate of the valve, and the static pressure of the materials should not exceed the design pressure of the pneumatic butterfly valve.

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