A metering device for fluids

Details A metering device for fluids A metering device for fluids

G - Physics

01

F

G01F 11/20 (2006.01) G01F 11/04 (2006.01) G01F 11/08 (2006.01) G01F 11/22 (2006.01)

Patent

CA 2133375

The metering device comprises a housing, defining at least one inlet for the material to be metered and at least one outlet for that material, and at least one rotatable ball driven by a shaft, said ball having a transverse bore containing a shuttling ball moving linearly in said bore between two seats and seals against the one or the other seat. The rotatable ball is captured between the seats and seals under pressure against the outlet seat. Such a metering device allows an exact metering, in shot or rapid shot resulting in near continuous flow form, has great simplicity of construction with few working parts such as that it may easily be placed at the dispensing end of a pressure transfer system for liquids and gases and acts as shut off valve between metering use such that it prevents stalled hydrostatic fluid pressure behind the metering device from causing a flow surge ahead of the metering device at start up.

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