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Oxygen System Fill/Check Valve
- Aerospace Standard
Published August 25, 2017 by SAE International in United States
Downloadable datasets availableAnnotation ability available
This SAE Aerospace Standard (AS) defines minimum standards of design, construction, and performance for two types of permanently installed, high pressure 12,800 kPa (1850 psig) and 13,800 kPa (2000 psig) oxygen system cylinder fill valves used in commercial aircraft. Refer to Purchaser's Specification for Requirements which are beyond the scope or level of detail provided in this document.
One valve has an adjustable pressure sensitive closing valve to automatically control the final pressure for a correct amount of oxygen in the system. The second valve incorporates an automatic shutoff feature designed to limit system overpressurization in the event maintenance personnel do not stop system filling at the correct pressure. The intent of the fill valves is to control the rate of fill to limit the rise in temperature caused by compression heating to acceptable values, prevent oxygen back flow and prevent the ingestion of foreign matter that could cause contamination of the system.
Note that some fill valves have integral supply line pressure regulators; for more information on supply line regulators, see AS 1248.
AS1225A has been reaffirmed to comply with the SAE Five-Year Review policy.
|Aerospace Standard||Minimum Standards for Valve, High Pressure Oxygen, Cylinder Shut Off, Manually Operated|
|Aerospace Standard||Aerospace Information Report for Continuous Flow Oxygen Hose Disconnect Fittings|
|Aerospace Standard||Demand Oxygen Systems|
Data Sets - Support Documents
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Welcome to the SAE A-10 Aircraft Oxygen Equipment Committee public forum area.The SAE A-10 Aircraft Oxygen Equipment Committee develops standards and practices in the design and information compiled from users, equipment suppliers, aircraft manufacturers, regulatory agencies and medical groups in the aeronautical oxygen field. The A-10 Committee also promotes safety in the aviation oxygen field. It defines the needs and encourages research needed in the area of aviation physiology, as it relates to respiratory functions and oxygen equipment performance.
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