Valve assembly plug and body seat improvements

Details Valve assembly plug and body seat improvements Valve assembly plug and body seat improvements

1994-08-09

1997-06-03

Fox, John C.

Valves and valve actuation

Rotary valves

Ball valve

25131513, 251314, F16K 506

Patent

active

056346263

ABSTRACT:
A valve with improved body and plug seats and methods of manufacturing the seats are disclosed. The body seat is separate from the valve body and is adhesively attached to the valve body about at least one of the valve body orifices. The body seat is adhesively attached to the valve body at an angle to compensate for plug-to-body eccentricity. The plug seat is replaceable and is formed of two rigid metallic rings connected by an elastomeric cylinder. The elastomeric cylinder is formed under pressure to reduce potential failure initiation sites.

REFERENCES:
patent: 2663538 (1953-12-01), Bacchi
patent: 2983281 (1961-05-01), Bynum
patent: 3076631 (1963-02-01), Grove
patent: 3794291 (1974-02-01), Suyama
patent: 3895776 (1975-07-01), Laurens
patent: 4293116 (1981-10-01), Hinrichs
patent: 4515347 (1985-05-01), Sitton et al.
patent: 4579477 (1986-04-01), Hartman
Valve and Primer Corporation, APCO Willamette, Bulletin 2200/2600, 1992.
J. Paul Tullis, Ph.D.and Utah State University Foundation, Flow and Torque Tests, Hydraulic Report No. 278, May, 1991.
Willamette Iron and Steel Company, Willamette List 26 Ball Valve Catalog, 1961.

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