Concrete hose shut-off valve

Details Concrete hose shut-off valve Concrete hose shut-off valve

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 31/126 (2006.01) B65D 90/56 (2006.01) B65G 53/32 (2006.01) B65G 53/52 (2006.01) E04G 21/04 (2006.01) F16K 7/10 (2006.01) F16L 55/10 (2006.01)

Patent

CA 2415541

A shut off valve for use with a concrete delivery hose includes a pair of flexible cylindrical sleeves disposed within a rigid casing that surrounds the hose. A gas chamber is defined between the sleeves so that when pressurized gas is forced into the chamber the inner sleeve will be displaced radially inwardly to constrict the hose and stop the flow of concrete.

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