Title:
VALVE AND STEM SEAL THEREOF
Document Type and Number:
Japanese Patent JPS61140687
Kind Code:
A
Abstract:
An improved valve with an improved stem seal including a body having a valve chamber, an inlet to and an outlet from the valve chamber, and a valve seat in the valve chamber, a valve member movable in the valve chamber and coacting with the valve seat to control flow through the valve, a valve stem connected to the valve member and extending through an opening in said body, means coacting with said stem to move said valve member, a stem sealing assembly positioned in said opening surrounding said stem and means for retaining the stem sealing assembly in position, said assembly including a wear resistant and corrosion resistant sealing ring having a plurality of internal and external grooves with internal and external sealing lips between the grooves, and an annular end recess opening toward the valve member, a soft sealing ring in each of the inner rod outer grooves fartherest from said valve member and a load ring positioned in said end recess and having a tapered external surface extending toward the axis of said stem in a direction toward said valve member. In a modified form of said sealing assembly the load ring also includes an internal taper extending toward the axis of said stem in a direction away from the valve member.
Inventors:
JIEEMUZU II KIRUMOYAA
Application Number:
JP19568385A
Publication Date:
June 27, 1986
Filing Date:
September 04, 1985
Export Citation:
Assignee:
CAMERON IRON WORKS INC
International Classes:
F16J15/16; F16J15/18; F16J15/32; F16K41/02; F16K41/04; (IPC1-7): F16K41/04
Domestic Patent References:
| JPS5923174A | 1984-02-06 |
Attorney, Agent or Firm:
Kyozo Yuasa