| 摘要 |
A diverter valve for pneumatic conveying systems comprises a pair of plates which are interconnected for relative translation. Each of the plates has at least one port therein for conveying materials through the valve. A seal ring is slidably mounted in a mating groove in a first one of the plates, and has an inner face which selectively abuts and seals against the second plate about the port therein during a material conveying position. A source of pneumatic pressure is connected with the first plate and communicates with the groove, thereby exerting pressure on an outer face of the seal ring and resiliently urging the same toward the second plate, whereby an airtight seal is formed between the ports.
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