Turbine controlled metering valve

Details Turbine controlled metering valve Turbine controlled metering valve

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 21/04 (2006.01) E03D 3/12 (2006.01) F16K 17/34 (2006.01)

Patent

CA 2185628

A metering valve includes a main valve and a pilot valve for operating the main valve. A low operating force pawl and ratchet system rotates a cam to open the pilot valve to initiate a cycle of operation. When the main valve is opened, a turbine wheel in the flow path rotates to measure flow . Turbine rotation is transmitted to the cam through a reducing gear assembly and a lost motion connection in order to reclose the pilot and main valves after a predetermined volume of flow is measured.

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