Patent ID: 9353875
Filing Date: 2016-05-31
CPC Classification: E03F,F16K,F16L,Y10T

Claim Text:
1. An insert for providing a valve in a conduit, the insert being arranged for insertion through a slot created in a surface of said conduit, said slot not extending across a full section of the conduit, the insert comprising: an insert body having first and second open ends, defining an axis of flow therebetween; a valve flap connected to said insert body; the valve flap being movable between a closed position in which the valve flap creates a closure, thereby preventing flow along said axis, and an open position in which the valve flap allows flow along said axis; the valve flap being arranged so that, when in the open position, it is substantially U-shaped in side cross-section and is oriented with respect to the insert body so that said U-shape arches over the axis of flow.