Valving device

Details Valving device Valving device

1998-10-14

2000-09-12

Fox, John

Fluid handling

With heating or cooling of the system

Circulating fluid in heat exchange relationship

2513351, F16K 4900

Patent

active

061162671

ABSTRACT:
A valving device can operate stably to provide switching or flow rate control operations, even when it is used for controlling thermodynamically unstable gases. The valving device including a valve casing having an internal passage for process fluids. A valve body is movable against a valve seat for adjusting opening of the internal passage, and a valve driving mechanism can drive the valve body. A flexible member is provided for separating a fluid handling space including the internal passage from a valve mechanism space for housing the valve driving mechanism. A thermal medium space is formed within the valve mechanism space for receiving a thermal medium for providing heat to the valve body.

REFERENCES:
patent: 2823696 (1958-02-01), Detlefson
patent: 3491789 (1970-01-01), Callahan, Jr. et al.
patent: 3647344 (1972-03-01), Skibo et al.
patent: 3831622 (1974-08-01), Grewer et al.
patent: 4715400 (1987-12-01), Gardner et al.

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