Leakage suppressed despite O-ring wear. New design eliminates leakage in vacuum selector valve on Space Shuttle waste-control subsystem. Applied to improve sealing in laboratory and industrial vacuum systems and other plumbing involving switching among lines with pressure differentials of order of 1 atmosphere (0.1 MPa).
Differential Pressure Helps Seal Ball Valve
NASA Tech Briefs ; 8 , 4
01.04.1985
Sonstige
Keine Angabe
Englisch
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