Dual flow rate valve

Details Dual flow rate valve Dual flow rate valve

F - Mech Eng,Light,Heat,Weapons

16

K

251/6

F16K 31/126 (2006.01) F16K 31/40 (2006.01)

Patent

CA 1210381

DUAL FLOW RATE VALVE Abstract of the Disclosure A valve including a valve body (15') having an inlet port (27), an outlet port (28), and an orifice (30) between the ports surrounded by a valve seat (31). A valve member (35) is movable into and out of engagement with the valve seat to close and open the valve, respectively. The valve member can be oscillated to permit a reduced rate of flow through the valve. The valve member may be carried by the armature (34) of an electrical solenoid (40); when the solenoid is energized by full wave AC power, the valve is held open in a stable condition, and when the solenoid is energized by half wave AC power, the valve member oscillates. The valve may be used as the pilot valve of a main valve (10), wherein when the valve member is oscillated to permit reduced rate flow through the pilot valve, the main valve remains closed.

427346

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