Alignment maintaining apparatus for trunnion mounted valves

Details Alignment maintaining apparatus for trunnion mounted valves Alignment maintaining apparatus for trunnion mounted valves

1984-05-25

1985-01-29

Schwadron, Martin P.

Valves and valve actuation

Rotary valves

Butterfly

403248, 403277, F16K 122

Patent

active

044961359

ABSTRACT:
An apparatus for maintaining valve element/valve seat alignment in valve assemblies employing trunnion mounted valve elements, the apparatus including a shaft or trunnion attached to the valve element and provided with an axially extending bore which receives an expandable plug, axially fixed relative to the shaft, there being means provided to laterally expand the plug to effect frictional engagement between the plug and the bore of the shaft.

REFERENCES:
patent: 3776651 (1973-12-01), Peter et al.
patent: 4146206 (1979-03-01), Malloy et al.

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