Importance

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Abstract

A flow control pinch valve comprises a flexible outer sleeve and a flexible inner sleeve concentrically disposed within and spaced from the outer sleeve, wherein the inner sleeve defines a passageway for allowing fluid to pass therethrough. The sleeves are attached to each other at each end thereof and adapted to be attached to an inner surface of a fluid conduit. An annular space for receiving pressurized fluid is defined between the inner sleeve and the outer sleeve such that the inner sleeve is configured to deflect inwardly thereby controlling fluid flow through the passageway. A first clamping ring is concentrically disposed within the inner sleeve and the outer sleeve at one end; and a second clamping ring is concentrically disposed within the inner sleeve and the outer sleeve at an opposite end, wherein the clamping rings are used to secure the control valve within a pipe.

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First Claim