| 摘要 |
PROBLEM TO BE SOLVED: To provide an emergency floating air feed device with high reliability to be operated easily and safely. SOLUTION: This emergency floating air feed device is provided with an emergency air tank 1, and connected to an emergency air feed tube 14 through a first pressure reducing device 11 air-tightly fitted to an engagement end 3 of a conduit part 2 of one end of the tank 1. The emergency air feed tube 14 is connected to a second pressure reducing device 16 through a connecting fitting 15. The other end of the second pressure reducing device 16 is connected to a first connection port 20 of a manifold 19. The manifold 19 has a second connection port 21 connected to an air feed tube 25, which sends air to a helmet, through a waist valve 24 and a third connection port 22 connected to the air feed tube 30 for sending the ordinary air from a low-pressure compressor. A check valve 29 is provided between the third connection port 22 and the manifold 19.
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