氧气系统填充/止回阀

[中文适用范围]： 广泛，涉及民用与军用航空器氧气装置的制造与维修环节，为行业提供了技术参考框架。标准内容严谨，体现了当时航空工程领域对安全件管理的严格要求，为后续类似部件的标准化工作奠定了坚实基础。 ***此介绍可能不准确，请注意参考原文。 [外文原描述]： This SAE Aerospace Standard (AS) defines minimum StandardDetails 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.Cross Reference: AIR1059,AIR1176,AIR825,AND10089,AS1219,AS1248,AS8010,AS861,ASTMG63,ASTMG88,ASTMG94,FED-BB-A-1034B,FED-BB-N-411,ISO8775,MIL-G-27617,TRC/DO160C