Ball valve seat

Details Ball valve seat Ball valve seat

1985-08-13

1986-08-05

Chambers, A. Michael

Valves and valve actuation

Valve

Seats

251339, 251363, 137322, F16K 3900, F16L 5518

Patent

active

046038388

ABSTRACT:
A ball valve seat is provided which comprises two separate reinforcement members, preferably of metal, embedded in an annular resilient body. The interior of the resilient body defines at one end a part-hemispherical ball valve seat and at its other end, of greater wall thickness, an outlet controlled by the ball valve. One of the reinforcing members has a flared skirt extending into the narrower wall thickness end of the resilient body and a narrower neck located in the wider wall thickness end of the resilient body, where it is received in an annular groove in the second reinforcement member. A portion of the second reinforcement member extends within the wider wall thickness end of the resilient body radially of the first reinforcement member over its skirt portion.

REFERENCES:
patent: 1493784 (1924-05-01), Larson
patent: 1518775 (1924-12-01), Cordley et al.
patent: 1624234 (1927-04-01), Hale
patent: 2729237 (1956-01-01), Hite
patent: 2769454 (1956-11-01), Bletcher et al.
patent: 3918681 (1975-11-01), Eberhardt
patent: 4343325 (1986-02-01), Fallon
patent: 4482129 (1984-11-01), Baker et al.

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