Control valve

Details Control valve Control valve

1985-02-01

1986-11-25

Schwadron, Martin P.

Fluid handling

Systems

Dividing into parallel flow paths with recombining

137315, 13761417, 251315, F16K 1112

Patent

active

046242813

ABSTRACT:
A control valve comprises a body having a fluid inlet and a fluid outlet and a rotary member provided with two separate internal passages, each capable of connecting the fluid inlet to the fluid outlet, according to the angular position of the rotary member in the said body. A control system is arranged in one of the passages for controlling fluid along the passage independent of the angular position of the rotary member, while the control of flow of fluid in the other passage is effected by adjustment of the angular position of the rotary member. The one passage is the main passage for normal use and the other passage is a secondary or by-pass passage for use when work is required to be done on the control system in the one passage. The control system in the one passage comprises valve members operated by a rod for closing seats in the passage.

REFERENCES:
patent: 2880748 (1959-04-01), Elsey
patent: 3272473 (1966-09-01), Veit et al.
patent: 3854497 (1974-12-01), Rosenberg
patent: 4114639 (1978-09-01), Cross et al.
patent: 4187872 (1980-02-01), Freeman et al.
patent: 4502663 (1985-03-01), Huber

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