Valves and valve actuation – Rotary valves – Ball valve
Patent
1997-01-24
1998-10-13
Fox, John
Valves and valve actuation
Rotary valves
Ball valve
25131516, 137315, F16K 506
Patent
active
058201033
ABSTRACT:
A ball segment valve comprise a valve housing (23) with a circular annular valve seat (28), a valve body (26) which has the shape of a spherical segment which is rotatable about an axis of rotation (49) which intersects the center of the sphere of which the valve body constitutes a segment, a rotating spindle (41) which extends through and is mounted in one side of the valve housing, and a journal bar (43).
The rotating spindle and the journal bar are interconnected by a bow (42) in order to form together with the bow a continuous rotating unit (25).
The journal bar is mounted in a cover (24) which covers a hole (64) in the other side of the valve housing, which hole is sufficiently large that the rotating unit can be introduced through the hole into its intended operating position in the valve housing and be fixed in this position by subsequent mounting of the cover.
The bow comprises a pair of legs (46, 47) which are connected to the rotating spindle and to the journal bar respectively, together with a yoke (45) connecting said legs at a distance from the axis of rotation (49), the valve body being mounted on said yoke.
REFERENCES:
patent: 3301271 (1967-01-01), Burke
patent: 3985334 (1976-10-01), Domyan
patent: 4214732 (1980-07-01), Kindersley
Hubertson Folke
Nilsson Curt
Aktiebolaget Somas Ventiler
Fox John
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