NASA-LLIS-0591
Lessons Learned – Pyrovalve Blow-by May Interact Violently With Propellant (1993)
active, Most Current
| Organization: | NASA |
| Publication Date: | 14 May 1998 |
| Status: | active |
| Page Count: | 3 |
scope:
Abstract:
Two satellites with different propulsion system designs were lost in 1993 and 1994 when blow-by from pyrovalves interacted violently with propellants. To prevent detonation of fuel due to the compression of hydrazine and its ignition by pyrovalve blow-by, use non-pyrotechnic valves or a zero blow-by pyrovalve design, or fire a pyrovalve only when there is a vacuum downstream of the valve.
Document History
NASA-LLIS-0591
May 14, 1998
Lessons Learned – Pyrovalve Blow-by May Interact Violently With Propellant (1993)
Abstract:
Two satellites with different propulsion system designs were lost in 1993 and 1994 when blow-by from pyrovalves interacted violently with propellants. To prevent detonation of fuel due to...
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