Vacuum butterfly valve

Vacuum butterfly valve is a type of butterfly valve that requires high sealing requirements. The flow space of the butterfly valve is significantly different from the external sealing structure, requiring the use of positive and negative bidirectional sealing. The main characteristics of vacuum butterfly valves include compact structure, light weight, easy installation, low flow resistance, large flow capacity, and easy operation. There are no complex structures such as connecting rods or bolts inside, making it reliable and with a long service life. In addition, vacuum butterfly valves can be installed in multiple stations, are not affected by the flow direction of the medium, and can withstand positive pressure. The valve stem does not move up and down. The closing element (valve disc or butterfly plate) of the vacuum butterfly valve produced by Shanghai Meiyanyi Pump Valve is disc-shaped, which rotates around the valve shaft to achieve opening, closing, and adjustment. Welcome new and old users to call or write to inquire.