Fluid-flow isolation and control apparatus and method

Details Fluid-flow isolation and control apparatus and method Fluid-flow isolation and control apparatus and method

E - Fixed Constructions

03

B

251/55, 251/64

E03B 1/00 (2006.01) F16K 31/08 (2006.01)

Patent

CA 1273329

Abstract of the Disclosure Fluid-flow control apparatus and method are disclosed by which magnetically-positionable elements within a rigid body can be externally manipulated using a controlling source of magnetic flux. The relative attractive forces which bias internal magnetic elements into normally-closed sealing engagement are substantially altered by repositioning the magnetic elements in response to the controlling magnet flux. Complete sealing or isolation against back flow through the valve under conditions of net positive outlet pressure is inhibited by the internal double-acting sealing elements which respond in unified manner to the controlling magnetic flux.

529000

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