Valves and valve actuation – Rotary valves – Butterfly
Patent
1985-08-07
1986-11-18
Chambers, A. Michael
Valves and valve actuation
Rotary valves
Butterfly
251305, F16K 11052
Patent
active
046231218
ABSTRACT:
An annular valve seat is fitted in a rotary fluid control valve of the butterfly type. The seat consists of a radially outer tail portion, a radilly intermediate metal support portion in the shape of an S and a radially inner metal seal portion having a metal sealing surface in the form of an annular semi-torus. The seal portion includes structure for retaining an elastomeric sealing insert. The valve seat is inserted in a groove between the valve body and an insert, with a small space existing between the axial sides of the groove and the axial sides of the S-shaped intermediate portion. The intermediate portion accordingly permits limited flexure in response to pressure stresses on the valve seat, but the flexure is limited by contact with the walls of the groove. The metal and elastomeric sealing surfaces provide leak-free sealing with an extending life.
REFERENCES:
patent: 1977351 (1934-10-01), Phillips
patent: 3027133 (1962-03-01), Anderson
patent: 3048363 (1962-08-01), Garrigan
patent: 3153427 (1964-10-01), Burtis
patent: 3168279 (1965-02-01), Anderson et al.
patent: 3181834 (1965-05-01), Jennings et al.
patent: 3260496 (1966-07-01), Borcherdt
patent: 3282555 (1966-11-01), Mallonee, II et al.
patent: 3394915 (1968-07-01), Gachot
patent: 3409269 (1968-11-01), Fawkes
patent: 3479178 (1970-02-01), Priese
patent: 3528448 (1970-09-01), Urban
patent: 3563510 (1971-02-01), Price
patent: 3642248 (1972-02-01), Benware
patent: 3650508 (1972-03-01), Kosmala et al.
patent: 3734457 (1973-05-01), Roos
patent: 3986699 (1976-10-01), Wucik et al.
patent: 4005848 (1975-02-01), Eggleston
patent: 4044994 (1977-08-01), Priese
patent: 4113268 (1978-09-01), Simmons et al.
patent: 4120482 (1978-10-01), Cox
patent: 4162782 (1979-07-01), Wilkins
patent: 4192484 (1980-03-01), Scaramucci
patent: 4210313 (1980-07-01), Chester
patent: 4272054 (1981-06-01), Zinnai
patent: 4331319 (1982-05-01), Summers
patent: 4341233 (1982-07-01), Broadway
patent: 4418889 (1983-12-01), Krause
Chambers A. Michael
Fox John C.
Jamesbury Corporation
LandOfFree
Butterfly valve seat does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Butterfly valve seat, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Butterfly valve seat will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1613612