MOVABLE TUBULAR FIRE-PREVENTION SEAL Russian patent published in 2022 - IPC F16L5/00 

FIELD: fire prevention.

SUBSTANCE: invention relates to a movable tubular fire-prevention seal. A multilayered product is proposed, cut out for wrapping around a pipe and a cup, glued overlap between itself by glue, and fixed on the pipe and the cup from two sides with clips of heat-resistant corrosion-resistant steel with screw clamps of heat-resistant corrosion-resistant steel. The multilayered product consists of an outer layer of fireproof fabric with water- and steam-impermeable chemically resistant impregnation, heat-resistant insulation mat, heat-resistant metal foil, an inner layer of fireproof fabric with water- and steam-impermeable chemically resistant impregnation, additional heat-resistant material. A heating cable and fireproof mastic are located between the seal and the pipe. The seal is installed on the pipe with preliminary shift relatively to an unfolded state, with the possibility of perception of explosive load.

EFFECT: invention provides long-lasting fire impact and short-term insignificant explosive load.

1 cl, 5 dwg