Ball valve

Details Ball valve Ball valve

1977-02-04

1978-08-01

Weakley, Harold W.

Valves and valve actuation

With means to increase head and seat contact pressure

Spring

251185, 251315, F16K 2504

Patent

active

041038673

ABSTRACT:
A ball valve consisting of a housing having a spherical flow control ball located therein and a pair of tubular sealing members, one on each side of the flow control valve. The tubular sealing members having spherical seats seated in the through flow passage of the housing and sealingly engaging the flow control ball. The tubular sealing members have through passages which have axes inclined towards each other at an obtuse angle. The flow control ball is urged towards the tubular sealing members in a direction tending to increase the obtuse angle between the axes of the through passages of the sealing members whereby to maintain a sealing pressure between the flow control ball and the tubular sealing members.

REFERENCES:
patent: 3161204 (1964-12-01), Roy
patent: 3231235 (1966-01-01), Anderson
patent: 3248080 (1966-04-01), Plasko
patent: 3273852 (1966-09-01), Ripert
patent: 3425663 (1969-02-01), Priese
patent: 3895776 (1975-07-01), Laureus

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