Dual valve stem packing arrangement

Details Dual valve stem packing arrangement Dual valve stem packing arrangement

1985-03-29

1986-03-25

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277123, F16J 1524

Patent

active

045778736

ABSTRACT:
Valve packing comprising one lower, adjustable, compressible, solid ring set followed by an upper, non-adjustable, pre-compressed, flexible, plastic v-ring set; both packing sets inter-spaced by a slidable gland having an additional outer elastomeric seal, said gland being able to compress said solid ring set without changing the geometry of the v-ring set.

REFERENCES:
patent: 1798158 (1931-03-01), Hazard
patent: 3281155 (1966-10-01), Kauffman
patent: 3442518 (1969-05-01), Henshaw
patent: 3957295 (1976-05-01), Gould
patent: 4330135 (1982-05-01), Butterfield
patent: 4529181 (1985-07-01), Wallis

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