Unterwasserschlauch

Abstract

Provided is a marine hose including a release layer that can reliably separate an inner reinforcing layer group from an outer reinforcing layer group to form a gap when an inner surface rubber layer and the inner reinforcing layer group are damaged and has excellent formability. An inner reinforcing layer group (4, 5), a release layer (6), and an outer reinforcing layer group (7) are layered in order from an inner circumferential side between an inner surface rubber layer (3) and a cover layer (9). The release layer (6) is composed mainly of PVA and the water dissolution temperature is set to 50°C or higher. When the inner surface rubber layer (3) and the inner reinforcing layer group (4, 5) are damaged, the release layer (6) is separated from the inner reinforcing layer group (4, 5) to form a gap (g) therebetween. A fluid (L) leaking from a flow path (1a) on an inner side of the inner surface rubber layer (3) flows through the gap (g) and a communication pipe (10a) and reaches a leak detector (10) disposed on a hose surface.