Vacuum butterfly valve flow adjustment method introduction

Method for adjusting the flow rate of vacuum butterfly valve

1. When the butterfly valve is opened, it has a small flow resistance. When the opening is between about 15° and 70°, the active flow control can be performed, so in the large-diameter conditioning range; 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.

2. 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 medium pressure of the butterfly plate to be accepted when closing should also be considered. . In addition, the constraints on the operating temperature of the elastic valve seat data at high temperatures are also considered.