DEMOUNTABLE VACUUM SEAL FOR OPERATION AT TEMPERATURES FROM-188 C TO 800 C
A new type of metal gasket vacuum seal is described which depends on a surface-friction effect instead of compression, which is the basis of most seals. Tests provcd the effectiveness of the seal for repeated cycling betwcen -188 and 800 deg C on fianges of 3 and 5 in. diameter and on a 1/2 in. vacuum union. The materials used include mild steel or stainless-steel flanges with flat gasket sheets of soft copper, iron, stainless steel, or nickel. Other metal gasket vacuum seals are briefly reviewed and the mechanism of sealing is discussed. A table of recommended dimensions for flanges from 3 to 12 in. diameter is also presented. (auth)
- Research Organization:
- Edwards High Vacuum, Ltd., Crawley, Sussex, Eng.
- NSA Number:
- NSA-13-015515
- OSTI ID:
- 4238500
- Journal Information:
- J. Sci. Instr., Journal Name: J. Sci. Instr. Vol. Vol: 36
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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