High pressure relief system

Details High pressure relief system High pressure relief system

1993-01-08

1994-04-05

Michalsky, Gerald A.

Fluid handling

Freeze condition responsive safety systems

137879, 137881, 251 3003, 25112915, F16K 17168, F16K 31365, F16K 3140

Patent

active

052995925

ABSTRACT:
An electrically operated valve assembly having a plastic body with a solenoid coil attached for moving an armature valve member for effecting flow from the vale inlet to outlet. In one embodiment the armature is a pilot valve slidably movable in a guide over which the solenoid is received. A spring loaded check valve in the guide releases over pressure within the valving chamber. In another embodiment a spring loaded check valve in the body inlet passage releases over pressure to a bypass passage to the outlet. In a third embodiment a slug having a spring loaded poppet relief valve is welded over an opening in the inlet passage at generally right angles to the inlet fitting to provide direct relief of over pressure in the inlet.

REFERENCES:
patent: 2940722 (1960-06-01), Vargo
patent: 3834412 (1974-09-01), Fannin
patent: 3844310 (1974-10-01), Brindisi
patent: 4182356 (1980-01-01), Woodford
patent: 4844112 (1989-07-01), Pick et al.

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