FIELD: sealing protective covers of containers used for transportation and/or storage of radioactive materials. SUBSTANCE: proposed seal includes spirally wound gasket containing alternating strips of profiled metal band filler. Profiled metal band has intermittent edges in section of spiral located between layers of filler forming recesses which may be filled with filler material in working (compressed) state of spirally wound gasket. In section of spiral located between layers of filler, profiled metal band has at least one perforation made in central part of metal band for filling with filler material in working (compressed) state of spirally wound gasket. EFFECT: enhanced tightness of structures handling media at high penetrability. 2 cl, 3 dwg
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Authors
Dates
2002-07-10—Published
2001-04-23—Filed