NASA-LLIS-0237

Lessons Learned - Control Valves

contributor author	NASA - National Aeronautics and Space Administration (NASA)
date accessioned	2017-09-04T16:59:28Z
date available	2017-09-04T16:59:28Z
date copyright	07/08/1993
date issued	1993
identifier other	XLZCQCAAAAAAAAAA.pdf
identifier uri	https://yse.yabesh.ir/std/handle/yse/122908
description abstract	Description of Driving Event: A test Centaur 1-E tank, on standby, was damaged. The bulkhead between the liquid hydrogen tank and the liquid oxygen tank failed due to a series of events. Air services to the building were shut down for repairs so that the facility switched to an emergency nitrogen supply. Failure to switch back to service air when it became available, led to the mishap. The emergency supply became depleted and two valves in the normal nitrogen purge system failed in the open position releasing the high pressure nitrogen gas from the manifold into the liquid hydrogen tank. The gas flow raised the liquid hydrogen tank pressure to 4.5 psig. That was sufficient to rupture the bulkhead wall.
language	English
title	NASA-LLIS-0237	num
title	Lessons Learned - Control Valves	en
type	standard
page	2
status	Active
tree	NASA - National Aeronautics and Space Administration (NASA):;1993
contenttype	fulltext
subject keywords	Pressure Vessels