Importance

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Abstract

A pinch valve sleeve for reducing the pressure of fluid flowing therethrough with or without actuation of the valve's pinching mechanism. The valve sleeve features an elongated hollow flexible resilient elastomeric sleeve body having an inner surface circumferentially bounding a flow-through passage and peripheral flanges at both ends suitable for attachment to a section of a pipeline or conduit system. The sleeve body has an ingress section adjacent to the inlet opening of the valve sleeve, an egress section at the outlet opening which permits fluid egress, and a pinchable intermediate section situated between the ingress and egress sections. The inner surface of the sleeve body has thereon a plurality of radially-extending, inwardly-directed protrusions operative for impeding fluid flow through the flow-through passage of the sleeve, thus reducing the pressure so that the pressure of the fluid which exits through the outlet opening is lower than the pressure of the fluid entering the inlet opening.

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First Claim