Description of the operation function of the vacuum butterfly valve and the flow rate of the conditioning medium

Operating function of vacuum butterfly valve and conditioning medium flow

1. When the butterfly valve is open, it has a small flow resistance. When it is open between about 15° and 70°, it can perform sensitive flow control. Therefore, in the field of large-diameter conditioning, the use of butterfly valves is very common. Because the movement of the butterfly disc is scrubbed, most butterfly valves can be used for media with suspended solid particles. Depending on the strength of the seal, it can also be used in powdered and granular media.

Second, the butterfly valve is suitable for flow conditioning. Because the pressure loss of the butterfly valve in the tube is relatively large, about three times that of the gate valve, when selecting the butterfly valve, the influence of the pressure loss of the pipeline system should be fully considered, and the strength of the pressure of the disc receiving the pipeline medium should be considered when closing. . In addition, the limits of the operating temperature of the elastomeric seat material at elevated temperatures are also considered.