Expansible tube valve

Details Expansible tube valve Expansible tube valve

F - Mech Eng,Light,Heat,Weapons

16

L

251/3

F16L 55/04 (2006.01) F16K 7/07 (2006.01)

Patent

CA 1041980

ABSTRACT OF THE DISCLOSURE A valve wherein an expansible tube is stretched around a hollow core, which has a central barrier be- tween inlet and outlet slots around the core. An annular groove is formed around the outer sealing surface of the barrier and extensions of some of the downstream slots open into the groove to vent the groove and pro- duce a pressure drop across the expansible tube to enhance sealing and to provide an initial flow path when the tube is forced away from the sealing surface.

266632

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