In the case of vacuum-insulated double-walled cryogenic storage vessels, usually the burst disk is welded into the wall of the outer shell. ... If the valve is operated manually, a quick-disconnect valve equipped with an integral check valve to prevent backflow is used, or a simple ... The electrical current that is needed by the ion pump during operation indicates the pressure within the vacuum annu- lus byanbsp;...
|Title||:||The Development of cryogenic storage systems for space flight|
|Author||:||Michael L. Davis|