Accession Number:

AD0291578

Title:

AN EXPLOSIVE-OPERATED VALVE

Descriptive Note:

Corporate Author:

FRANKFORD ARSENAL PHILADELPHIA PA PITMAN-DUNN RESEARCH LABS

Personal Author(s):

Report Date:

1962-08-01

Pagination or Media Count:

1.0

Abstract:

The object of this investigation was to develop a method for rapidly stopping the flow of gas through a tube and permanently sealing the tube against further leakage. A valve has been developed which will close an aluminum tube 0.5 in. OD by 0.065 in. wall in approximately 25 microseconds, giving a hermetic seal thereof. The closure is obtaine by radially collapsing the tube wall under an explosive load. The rapidly moving walls meet and join to form a bond similar to a weld. Provisions are made to muffle andor direct the blast so that two or more valves can be operated within inches of each other. Eight of these valves were used successfully as part of an experiment in conjunction with Project Gnome, an underground atomic explosion, at Carlsbad, N. M., on 10 December 1961. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE