NASA-LLIS-0219

Lessons Learned - High Pressure Steam Line Valves

contributor author	NASA - National Aeronautics and Space Administration (NASA)
date accessioned	2017-09-04T16:16:39Z
date available	2017-09-04T16:16:39Z
date copyright	06/18/1993
date issued	1993
identifier other	BKZCQCAAAAAAAAAA.pdf
identifier uri	https://yse.yabesh.ir/std/handle/yse/80024
description abstract	Description of Driving Event: A high pressure steam valve ruptured in the basement of the building, releasing steam that damaged walls and floor tiles. The mishap was caused by dynamic loading to the line resulting from severe water hammer. Heavy rainfall preceeding the incident flooded the steam trench. The steam line enclosed with cool water set up a heat exchange process forming excessive condensate that was put into motion by the building demand. Slugs of water generated dynamic loads in the piping. The cast iron steam valve (Chapman gate valve model 59 1/2) then ruptured.
language	English
title	NASA-LLIS-0219	num
title	Lessons Learned - High Pressure Steam Line Valves	en
type	standard
page	2
status	Active
tree	NASA - National Aeronautics and Space Administration (NASA):;1993
contenttype	fulltext
subject keywords	Facilities
subject keywords	Parts Materials & Processes
subject keywords	Pressure Vessels