Safety relief valve soft seat

Details Safety relief valve soft seat Safety relief valve soft seat

1982-03-08

1984-05-08

Weakley, Harold W.

Fluid handling

Line condition change responsive valves

Direct response valves

137469, 1375395, 251362, F16K 1500

Patent

active

044468865

ABSTRACT:
In a poppet-type relief valve, including a housing having a spring guide assembly axially biasing a valve toward a seat in its inlet passageway, a soft valve seat member is coaxially disposed in the inlet passageway. The soft seat member includes a rigid surface limiting movement of the spring urged valve toward the inlet passageway and further includes a resilient ring seal positioned adjacent the rigid surface in a manner to be cushion contacted by and form a bubble tight seal with the spring urged valve before the valve contacts the suface.

REFERENCES:
patent: 2588157 (1952-03-01), Olson
patent: 2676782 (1954-04-01), Bostock
patent: 2860662 (1958-11-01), Grey
patent: 2875978 (1959-03-01), Kwiecik
patent: 2878896 (1959-03-01), Farrell
patent: 3189040 (1965-06-01), Johnson
patent: 3741523 (1973-06-01), Scanamucci
patent: 3754568 (1973-08-01), Gallaghen

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