Restrictor valve for a metered liquid dispensing system

Details Restrictor valve for a metered liquid dispensing system Restrictor valve for a metered liquid dispensing system

G - Physics

01

F

G01F 11/00 (2006.01) B67D 7/02 (2010.01) B67D 7/20 (2010.01) B67D 7/30 (2010.01) B67D 7/32 (2010.01) G01F 3/10 (2006.01)

Patent

CA 2056705

A restrictor valve functions as an outlet valve in a metered liquid dispensing system and utilizes a spring biased, shiftable anti-siphon check valve to prevent fluid flow back from the receiving tank into the system. The restrictor valve is attached to the delivery end of the system discharge hose. The dispensing system is controlled by a central electronic unit and the restrictor valve includes a sensing unit for signalling the electronic control when liquid is present at the outlet. The restrictor valve is connected to the receiving tank by a low spill coupling to minimize escape of the liquid into the environment. The restrictor valve may also include a vacuum breaker valve which admits air into the discharge hose when the system pump is run in reverse to remove the prime from the discharge hose.

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