FIELD: nuclear, paper making, oil gas, food and chemical industries.
SUBSTANCE: proposed sealing cord is made of square cross-section packing formed from separate twisted braids and tape of porous polytetrafluorethylene coiled to spiral on above-indicated packing. The of porous polytetrafluorethylene is wound with tension in longitudinal direction, each following turn of spiral of polytetrafluorethylene tape partially overlaps preceding turn of spiral.
EFFECT: improved reliability of sealing cord.
8 cl, 4 dwg
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