Seal for turning valve bodies, in particular for valves in nucle

Details Seal for turning valve bodies, in particular for valves in nucle Seal for turning valve bodies, in particular for valves in nucle

1986-10-27

1989-04-04

Kyle, Deborah L.

Induced nuclear reactions: processes, systems, and elements

Seal arrangements

137384, 277DIG6, 384912, G21C 1302, F16K 502

Patent

active

048184691

ABSTRACT:
The seal for turning valve bodies, in particular for valves in radioactive lants, is composed of a molded element of flexible graphite which is coated with a thin, flexible tantalum layer. The tantalum enclosure surrounds the graphite molded element, preferably all around. The tantalum layer is sufficiently thin so that it remains flexible.

REFERENCES:
patent: 3297552 (1967-01-01), Gisser et al.
patent: 3467356 (1969-09-01), Mueller
patent: 3567177 (1971-03-01), Mueller
patent: 3959438 (1976-05-01), Messner
patent: 4056363 (1977-11-01), Messner
patent: 4216266 (1980-08-01), Hirschvogel et al.
patent: 4344633 (1982-08-01), Niksa
Grafoil, Nuclear News, vol. 29, No. 8, p. 64, Jun. 1986.

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