Fireproof sealing bag for cable trays

Fire-resistant sealing bags, also known as intumescent fireproof pillows, provide certified protection for cable tray penetrations while allowing easy maintenance and repositioning.OverviewFire-resistant sealing bags are designed to seal cable tray penetrations in walls, floors, and ceilings, preventing the spread of fire and smoke. They are typically intumescent and ablative, meaning they expand and absorb heat during a fire, creating a barrier that protects cables and structural elements. These products are suitable for both temporary and permanent installations and are often repositionable to accommodate changes in cable layouts .Key ProductsAF BAGS (AF Systems): Certified under EN 1366-3 for up to EI 240 fire resistance, these pillows are encased in non-combustible fiberglass and contain intumescent compounds, thermal insulators, and water-release products. They can seal cables up to 21 mm in diameter with a sealing depth of 120 mm, even in thin or unconventional structures. They are easy to install, reposition, and maintain without harmful materials .KBS Sealbags (Wolman): Available in multiple sizes, these bags are ideal for frequently modified cable penetrations. They provide flexible, temporary, or permanent fire protection and are suitable for walls and floors. Technical documents and approvals are available upon request .SACCUS (Rothoblaas): These fireproof bags are repositionable, minimize sealing depth, and are resistant to humidity, mold, and bacteria. They contain no harmful fibers and are optimized for efficient installation in various opening types .3M Fire Barrier Moldable Putty+ and IC 15WB Caulk: While not bags, these intumescent products complement sealing systems by blocking heat penetration and providing firestop solutions for cable trays, conduits, and pipes. They are reusable and suitable for retrofitting .Installation ConsiderationsMeasure the cable tray dimensions to select the appropriate bag size and quantity.Ensure the certified side thickness matches the product specifications (e.g., 120 mm for AF BAGS).Position the bags to completely close the penetration while allowing for future maintenance.Check certifications such as EN 1366-3 or local fire safety standards to ensure compliance.AdvantagesCertified fire protection for up to EI 240.Repositionable for maintenance or cable layout changes.Minimal sealing depth required, suitable for thin or unconventional walls.Free from harmful fibers and resistant to environmental factors like humidity and mold. Fire-resistant sealing bags are an effective solution for enhancing fire safety in cable tray installations, providing both protection and flexibility for ongoing maintenance or modifications .