Accession Number:

ADA156596

Title:

Performance Comparison of Thirty Two-Stage Demand Regulators,

Descriptive Note:

Corporate Author:

ADMIRALTY RESEARCH ESTABLISHMENT (MARINE TECHNOLOGY) PORTSMOUTH (ENGLAND)

Personal Author(s):

Report Date:

1984-01-01

Pagination or Media Count:

25.0

Abstract:

This report presents the results obtained from an evaluation of thirty commercially available two stage air demand regulators. The tests, carried out in the Admiralty Research Establishment Experimental Diving Unit AREEDU unmanned hyperbaric facility, followed procedures which have been agreed between AREEDU and NEDU Naval Experimental Diving Unit in the USA. The results of the AREEDU tests on thirty, two-stage demand regulators showed that only two met the RECOMMENDED LIMITS for breathing resistance and work of breathing for the three ventilation rates at the maximum depth of 50 msw. A majority of the regulators exhibited a rapid degradation of inhalation response at a ventilation rate of 62.5 1min, beyond their respective maximum depths or as cylinder pressures approached 30 Bar.

Subject Categories:

  • Life Support Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE