SECOND STAGE DECOMPRESSION PART OF SELF-CONTAINED TYPE OR AIR-SUPPLIED TYPE UNDERWATER BREATHING APPARATUS

摘要

To provide a self-contained type or air-supplied type underwater breathing apparatus and a second stage decompression part capable of breathing smoothly.SOLUTION: A slide valve has a configuration such that an outer diameter surface of a tip valve body on which a rubber valve is installed and an outer diameter surface of a base-end valve body on which a demand lever is installed air-tightly slide on an inner diameter surface of a demand body, and the slide valve has a second stage decompression part of a self-contained type or air-supplied type underwater breathing apparatus, in which an inner diameter surface of the base-end valve body air-tightly slides on an outer diameter surface of a nozzle part of a demand valve.SELECTED DRAWING: Figure 7