Ball valve with reciprocal and rotatable spindle

Details Ball valve with reciprocal and rotatable spindle Ball valve with reciprocal and rotatable spindle

1977-11-28

1979-11-20

Schwadron, Martin P.

Valves and valve actuation

Valve head movably connected for accommodation to seat

With universal connection

251 88, 251172, 251315, F16K 2500, F16K 506

Patent

active

041748255

ABSTRACT:
A high pressure environmental ball valve wherein the ball valve member is tiltable into engagement under the influence of pressure into tight sealing relationship with a sealing ring at the valve outlet. The spindle is connected to the ball by a loose fitting wedge member and cooperating V-groove. When operation of the ball is desired, the spindle is moved linearly before rotation in order to bring the wedge on the end of the spindle into tight engagement with the V-groove, low-torque rotation being possible.

REFERENCES:
patent: 3124333 (1964-03-01), Sivyer
patent: 3195560 (1965-07-01), Pofit
patent: 3390861 (1968-07-01), Masheder
patent: 3698687 (1972-10-01), Kitamura
patent: 3705707 (1972-12-01), Scaramucci

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