Seals

Details Seals Seals

1994-09-06

1995-11-21

Fox, John

Valves and valve actuation

With means to increase head and seat contact pressure

Seat pressed to valve

251328, F16K 310

Patent

active

054679664

ABSTRACT:
A floating gate valve seat has an integral static seal comprising a convex arcuate limb 9 and a projecting tip 25 on the limb arranged to contact a seat pocket surface 12 and place the limb in flexing stress to effect a seal at the tip 25. A set-back stop surface 15 on the valve seat limits the compression of the seal and the axial movement and the valve seat 7.

REFERENCES:
patent: 4085770 (1978-04-01), Woronowicz
patent: 4290581 (1981-09-01), Moran et al.
patent: 5037064 (1991-08-01), Pond
patent: 5088687 (1992-02-01), Stender
patent: 5170989 (1992-12-01), Kemp

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