FIELD: machine building.
SUBSTANCE: hose device includes an internal main hose and an external protective hose, which form a tubular air gap to provide hose water buoyancy. At least on one end there located is a connector attached to the main hose and the protective hose, which on its free end is attached to or combined with a connection device for connection of the hose device to an external system. The connector includes an internal sleeve, to which the main hose end is attached; with that, the internal sleeve on its free end is equipped with an element, and namely with thread for connection to the pipe system, the external sleeve, to which the protective hose end is attached, a connection element for connection of the internal sleeve to the external sleeve in a detachable manner, and connected between hoses, which contains a check valve providing emptying of the protective hose into the internal main hose.
EFFECT: invention improves the connection reliability.
5 cl, 2 dwg
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