| 摘要 |
<p>Safety system for two-stage distributors for underwater breathing apparatus, characterized in that on the output of the bottle or bottles (1) containing the breathable gas two first-stage reducers (4, 6) are mounted in parallel, one of the low-pressure outputs (7, 8) of said reducers being connected respectively to a main distributor and to an auxiliary distributor, and two other low-pressure outputs (11, 12) of said first-stage reducers (4, 6) being connected one to the other with a bridge. <IMAGE></p> |
