Valves and valve actuation – Mechanical movement actuator – Particularly packed or sealed
Patent
1993-08-24
1994-08-16
Chambers, A. Michael
Valves and valve actuation
Mechanical movement actuator
Particularly packed or sealed
277215, 277235R, F16K 3144
Patent
active
053380053
ABSTRACT:
A sealing ring for multi-way valves comprising a valve housing and a valve spool able to be moved axially in translation therein. The ring comprises an annular sealing body which possesses radially to the outside possesses a circumferentially extending outer sealing portion for the anchoring thereof in a holding groove or recess and radially to the inside has a circumferentially extending inner sealing portion for providing a sealing action between it and the valve spool surrounded by it, while between the two portions there is a concentric central section. There is a provision for the possibility of axial motion of the inner sealing portion of the part, which is nearer to the valve spool, and furthermore a supporting and stiffening ring is present which is manufactured of a material harder than the material of the sealing body and preferably in a setting, as seen in the radial direction, outside the pivot axis with a coaxial arrangement in the sealing body.
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Chambers A. Michael
Festo KG
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