Blow-down safety valve

Details Blow-down safety valve Blow-down safety valve

1976-02-04

1977-07-19

Weakley, Harold W.

Fluid handling

Line condition change responsive valves

Pop valves

137478, F16K 3700

Patent

active

040362507

ABSTRACT:
A blow-down safety valve having means for directing the fluids exiting therefrom along a flow path which assists the valve member to open and seat quickly without excessive bleeding. The valve member includes a flat seating portion and an annular lip extending perpendicularly thereto to change the direction of the exiting fluid flow and direct it downwardly along the exterior wall of the valve inlet conduit, and a blow-down ring is provided to form an annular huddling chamber for receiving and collecting such downwardly directed fluid. The annular huddling chamber includes a bottom wall beneath the valve member annular lip and a side wall extending upwardly from the bottom wall toward and beyond the annular lip and in spaced relation thereto for directing fluid flow from the annular huddling chamber along a path substantially opposite to the direction of fluid flow into the huddling chamber.

REFERENCES:
patent: 889895 (1908-06-01), Blanchard
patent: 1032482 (1912-07-01), Jerauld
patent: 2799291 (1957-07-01), Orr
patent: 3543777 (1970-12-01), Howes
patent: 3945607 (1976-03-01), Dashner

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