What are the resistance values in the manual and automatic control schematic diagram of the pneumatic wear-resistant ventilation butterfly valve? (6) Before installation, it is necessary to check whether the performance of the pneumatic butterfly valve and the stop flow tip are consistent with the movement direction of the medium, and pay attention to the cleaning of the valve cavity. It should be known that there should be no foreign matter in the butterfly plate and seal ring. If the butterfly plate is closed without cleaning, it is easy to damage the seal ring; (7) Metal sealing butterfly valve products are not suitable for installation at the end of the pipeline. If it is necessary to do so, the outlet flange should be selected, which can effectively cause the backlog or over positioning of the sealing ring.
、 According to the working mode, it can be divided into two types: switch and regulation. Among them, the regulating type of electric switch butterfly valve is relatively fine, which can work according to the parameters set by people to effectively regulate the liquid. The switch type electric switch butterfly valve is relatively simple. The switch type can work directly after the power is turned on. The adjustable type can only work after setting parameters after the power is connected.
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