Valve stem flex lip backseat

Details Valve stem flex lip backseat Valve stem flex lip backseat

1991-05-24

1992-07-07

Rosenthal, Arnold

Valves and valve actuation

Reciprocating valve

Actuator controlled stem seal

251327, F16K 4114

Patent

active

051276291

ABSTRACT:
A metal-to-metal backseating system for fluid flow control valves, comprising a flexible annular backseat element extending radially from a valve stem or closure element to sealingly engage a valve bonnet surface, and an annular backup for the backseat element.

REFERENCES:
patent: 2780233 (1957-02-01), Volpin
patent: 3152786 (1964-10-01), Soderberg et al.
patent: 3412750 (1968-11-01), Volpin

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