For the sealing of combustible pipes, fire-resistant up to EI120 U/U according to EN1366/3.
Metal ring made from 0,5mm steel with insert from heat-expanding (intumescent) special material.
Fire-resistant sealing of synthetic pipes of waste water lines, pneumatic systems, ventilation pipes, within chemical and laboratory areas in fire-compartment walls and floors up to fire resistance class EI120 U/U. Also application in combination with bst Mixed Penetration Seal Type AK-2.60 possible.
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