Evaluation of the Preproduction Sample of U. S. Divers Co. Revised Two Stage Aqua-Lung Regulator ('Aqua-Master') and Improved Scuba Cylinders,
Abstract
The equipment evaluated consists of U. S. Divers Co's new two stage regulator, the 'Aqua-Master', and a pair of revised type 3000 psi aluminum cylinders, as specified by BUSHIPS, with straight thread O-ring sealing arrangement. The overall apparatus did not meet acceptance criteria; having an unacceptably high exhalation resistance as a consequence of a new design exhaust flapper valve. Substitution of the old style upper cover-exhaust valve assembly brought the resistance characteristics within specifications. The O-ring cylinder seal is basically satisfactory but not in accordance with military standards. Numerous minor mechanical deficiencies are noted for change. (Modified author abstract)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 05, 1958
- Accession Number
- AD0779182
Entities
People
- G. W. Hanger
- W. F. Searle Jr.
Organizations
- United States Navy Experimental Diving Unit