Dust valve and trap

Details Dust valve and trap Dust valve and trap

F - Mech Eng,Light,Heat,Weapons

16

K

251/26

F16K 1/16 (2006.01)

Patent

CA 1246045

IMPROVED DUST VALVE AND TRAP Abstract of the Disclosure A dust trap is disclosed including a pair of coaxially mounted dust valves. Each valve has a valve body with a flow path therethrough. A cylindrical seat is mounted in each body and a frustro conical flapper is provided having an angled surface which seats against a beveled internal surface of the seat. The flapper is mounted on an actuator shaft and rotates from a seated position to an open position substan- tially parallel to the flow path. A deflector is mounted in the seat and a wear plate is provided along an internal wall of the body opposite the actuator shaft so that dust passing through the valve does not impinge on the open flapper. An access door is also provided to inspect, clear or replace the flapper and seat.

466934

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