Shut-off valve with spherical plug

Details Shut-off valve with spherical plug Shut-off valve with spherical plug

1986-05-13

1987-05-26

Chambers, A. Michael

Valves and valve actuation

Rotary valves

Ball valve

251148, 251316, 251360, 137327, F16K 506

Patent

active

046679286

ABSTRACT:
A shut-off valve assembly includes a housing which has a spherical plug arranged in a chamber. The housing has an internal thread into which a support element for a sealing member is screwed. On the outer end face of the support element is supported a flange bushing by means of a retaining nut. The pitches of the internal thread and of an external thread for the retaining nut are directed in opposite directions, so that the support element cannot be loosened when the retaining nut is unscrewed.

REFERENCES:
patent: 4059250 (1977-11-01), Guldener et al.
patent: 4327895 (1982-05-01), Blumenbrantz et al.
patent: 4418887 (1983-12-01), Tularu

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