Live load packing system

Details Live load packing system Live load packing system

1990-10-09

1992-07-14

Walton, George L.

Valves and valve actuation

Mechanical movement actuator

Particularly packed or sealed

277 2, 277 59, 277 72FM, 277106, 277124, 277205, 137553, F16K 4104, F16K 3700

Patent

active

051296250

ABSTRACT:
An improved live load packing system for sealing an operating valve member in a fluid valve. A packing follower includes a base and a guide sleeve with a non-metallic inner liner adapted for slidable engagement on the operating valve member. A series of Belleville disk springs slidably engage the guide sleeve outer diameter and maintain concentric mounting during loading of V-type TFE packing members to ensure uniform concentric spring loading and to prevent undesired side loading. A window permits viewing the position of the guide sleeve and inner liner during packing loading adjustment so that optimum loading can be attained and maintained when the viewer notes the top edge of the guide sleeve and inner liner is flush with the top surface of the packing flange.

REFERENCES:
patent: 4051291672 (1982-10-01), Foster
patent: 3968970 (1976-07-01), Vogeli
patent: 4283062 (1981-08-01), Catanzaro et al.
patent: 4475712 (1984-10-01), DeJager
patent: 4538790 (1985-09-01), Williams et al.
patent: 4773442 (1988-09-01), Lephilibert
patent: 4878677 (1989-11-01), Larkins et al.

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