SELF-CLOSING VALVE ASSEMBLY AND SYSTEM FOR SUPPLYING A SUBSTANCE WHICH IS PROVIDED WITH SUCH A VALVE ASSEMBLY

摘要

A self-closing valve assembly comprising a valve (34) with a flexible body (35) which forms a channel (3) for a substance and which has flaps (36) which touch each other in the closed position of the valve and form a mouth (4) in the opened state of the valve. The valve further comprises a device (37) which makes contact with the flexible body and supplies a closing force, which supplies a force constraining the flaps into the closed position.