PRESSURE RELIEF VALVE FLAPPER
Original Publication Date: 1979-Aug-31
Included in the Prior Art Database: 2004-Apr-02
Xerox Disclosure Journal
In a centrifugal blower installation requiring a variable quantity of air at a constant pressure, a simple but effective valve may be provided consisting of a resilient sealing pad 3 adapted for cooperation with a pressure relief outlet 5 on the blower 7. The pad 3 is supported on a pivoting mechanism 9 which is provided with a counterbalance weight 11 on a threaded shaft 13 to adjust the valve.