Valve stem packing containment for high pressure, high temperatu

Details Valve stem packing containment for high pressure, high temperatu Valve stem packing containment for high pressure, high temperatu

1987-09-16

1989-12-12

Walton, George L.

Valves and valve actuation

Mechanical movement actuator

Particularly packed or sealed

277 59, 277 72FM, 277105, 277124, 277188A, 277205, F16K 4104, F16J 1520, F16J 1540

Patent

active

048862410

ABSTRACT:
A fluid valve for use in elevated pressure and temperature conditions. Composition material wiper rings are provided in the packing bore between the packing follower and the packing box ring. The composition wiper rings have an inner diameter substantially the same as the valve stem diameter to inhibit the extrusion of packing material during sliding valve operation.

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