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What effect does the use of the electric butterfly valve have on the medium?
What is the use of electric butterfly valve? Purchased friends all know that it is mainly used to control solid materials, often placed in the bottom of the tank as a discharge valve, such as cement irrigation, stone powder irrigation, etc., it can quickly cut off and discharge in advance The role. Is the electric butterfly valve we purchased suitable for use in the environment? We need to look at the role of the different media.
For example, dust materials, which will contain more or less particles, will certainly wear on the sealing surface of the electric butterfly valve. Once improper selection, it is easy to reduce the service life of the valve, the internal leakage problem can not be solved, and then affect the use of . If you really want to use the electric butterfly valve, you can extend the vibration time of the motor in the PLC program, and shake the material as much as possible to close the valve. At the same time, the zero point of the weighing instrument needs to be adjusted, and it will be displayed as 0 when the material is completely out. At this time, the PLC will send a signal to close the valve. Of course, there is a way to solve the inner leakage, that is, the three-eccentric electric butterfly valve is replaced by a double-eccentric elastic hard-sealed electric butterfly valve. If there is no fine powder of particles, the soft seal butterfly valve can be directly used. The reason why everyone can make such a choice The main reason is that the valve seat of the triple eccentric butterfly valve is a tilted sealing surface. It is easy for the material to accumulate and cannot be quickly discharged. However, the use of double eccentricity will not cause this problem. Even if there is residual material on the sealing surface, The valve plate in the closed state is scraped off so that there is no need to worry about sealing.
In such a use environment, in addition to the need to consider the selection of different media problems, but also consider other factors, such as the location of the material placed, if placed directly in the car, it is easy to rush to the valve plate, can not let the valve Close it tightly. There is also room for attention, the static pressure of the material can not exceed the design pressure of the butterfly valve.
Some people say that I chose a manual butterfly valve. In fact, no matter what kind of drive butterfly valve, you can not treat it alone, but to combine specific conditions. The correct selection, pay attention to the relevant use, will not encounter the above problems of the butterfly valve, obviously, the user's lack of understanding of the butterfly valve will also lead to the valve can not be used.
All in all, learning how to debug electric butterfly valves during use will definitely reduce the probability of occurrence of failures and produce better effects such as current limiting and control.
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