NASA-LLIS-0497

Lessons Learned - Propulsion Valve Contamination Sources in Vendor Test Facilities (1995)

contributor author	NASA - National Aeronautics and Space Administration (NASA)
date accessioned	2017-09-04T18:18:16Z
date available	2017-09-04T18:18:16Z
date copyright	03/13/1997
date issued	1997
identifier other	HRBEQCAAAAAAAAAA.pdf
identifier uri	http://yse.yabesh.ir/std;jsery=autho162s7D8308/handle/yse/200997
description abstract	Abstract: The Cassini/Mars Global Surveyor thruster high pressure latch valve was redesigned to use a Kel-F seal instead of Teflon. Because the harder plastic has less ability to seal around small particles, particulate contamination in the helium gas can cause random leakage. Use high purity helium for pressure testing and for flight consumables, and establish contamination control procedures.
language	English
title	NASA-LLIS-0497	num
title	Lessons Learned - Propulsion Valve Contamination Sources in Vendor Test Facilities (1995)	en
type	standard
page	3
status	Active
tree	NASA - National Aeronautics and Space Administration (NASA):;1997
contenttype	fulltext
subject keywords	Parts Materials & Processes
subject keywords	Spacecraft
subject keywords	Test & Verification
subject keywords	Test Article