Wire form type insert retainer for a wafer style butterfly valve

Details Wire form type insert retainer for a wafer style butterfly valve Wire form type insert retainer for a wafer style butterfly valve

1985-10-29

1987-02-24

Chambers, A. Michael

Valves and valve actuation

Valve

Seats

251306, 137315, 403326, F16K 122, F16K 4300

Patent

active

046451803

ABSTRACT:
A wafer style butterfly valve has a valve body including a through opening with a cylindrical wall coaxially surrounding an end portion of the fluid passage. The insert is retained within the valve body by at least one wire form held in an annular channel defined by facing annular grooves in the valve body wall and the insert peripheral wall. The wire form includes a member projecting therefrom for engaging a surface of the annular groove in the valve body wall or the annular groove in the insert peripheral wall. A tapered wall at one end of the insert provides for expansion of the wire form during insertion of the insert into the valve body.

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patent: 4272054 (1981-06-01), Zinnai
patent: 4293116 (1981-10-01), Hinrichs

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