Valve stem packing system

Details Valve stem packing system Valve stem packing system

1992-03-17

1993-11-23

Walton, George L.

Valves and valve actuation

Mechanical movement actuator

Particularly packed or sealed

73 46, 137312, 222108, 277 2, 277112, 2771162, 277121, 277125, 277190, F16K 4104, F16J 1524

Patent

active

052636828

ABSTRACT:
A packing system for the operating stem of rotary valves includes first and second packing assemblies engaged with the stem at axially spaced locations. The first assembly is adjustably compressed into sealing engagement with the stem by a first packing nut which carries both the second packing assembly and a second packing nut for adjustably compressing the second packing assembly into sealing engagement with the stem independently of the first packing assembly. The space between the first and second packing assemblies provides a sealed chamber to allow detecting any leakage taking place from the valve chamber through the first stem packing assembly.

REFERENCES:
patent: 589725 (1897-09-01), Hodge et al.
patent: 3319647 (1967-05-01), Morain
patent: 3770247 (1973-11-01), Nelson
patent: 4010769 (1977-03-01), De Lorenzo et al.
patent: 4260131 (1981-04-01), Kindersley
patent: 4538790 (1985-09-01), Williams et al.
patent: 4558874 (1985-12-01), Williams et al.
patent: 4660591 (1987-04-01), Brown et al.
patent: 4916938 (1990-04-01), Aikin et al.
patent: 4972867 (1990-11-01), Ruesch
patent: 5129624 (1992-07-01), Icenhower et al.

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