Valve for self-priming pump system

Details Valve for self-priming pump system Valve for self-priming pump system

1982-12-09

1985-05-07

Chambers, A. Michael

Fluid handling

Systems

With pump

417199A, 417200, B63

Patent

active

045151806

ABSTRACT:
A self-priming pump system including a priming valve for automatically providing priming liquid to a pump which has lost suction. The priming liquid is contained within the pump discharge column between a pair of spaced check valves. The priming valve is in communication with the priming liquid column and is activated by the static pressure head difference between the discharge column and the pump outlet to cause the valve to open upon loss of pump suction, which is reflected in a drop of static pressure head at the pump outlet. The priming valve includes a valve member connected to a piston which is received in a cylinder in communication with the discharge column. A bleed valve and bleed conduit extend from the cylinder to control the pressure level at which the valve will be actuated.

REFERENCES:
patent: 1997418 (1935-04-01), Hornschuch et al.
patent: 2897764 (1959-08-01), Tracy
patent: 3370604 (1968-02-01), Napolitano
patent: 3381618 (1968-05-01), Napolitano

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