Horizontal cable tray sealing

Horizontal cable tray sealing ensures fire, smoke, water, and environmental protection while maintaining flexibility for high cable volumes and complex layouts.

Purpose of Horizontal Cable Tray Sealing

Sealing horizontal cable trays is essential to prevent the spread of fire, smoke, water, or gas through penetrations in walls, floors, or ceilings. Proper sealing also protects cables from environmental exposure, corrosion, and mechanical damage, ensuring compliance with safety standards and maintaining system integrity throughout the building lifecycle. Common Sealing SolutionsFoam-Based Fire-Rated SealsProducts like FYLLOFOAM® provide lightweight, flexible, fire-rated protection for grouped cables.

ACTIFOAM® expands under heat to maintain fire integrity around cables, ideal for irregular or hard-to-access spaces. Weatherstop SystemsWSP weatherstops use powder-coated or galvanized steel frames with water-resistant pads and silicone-based sealant to create a watertight seal. These systems accommodate any cable size and quantity, are suitable for outdoor and wet environments, and allow easy cable maintenance without additional parts.

Modular and Compression-

Based Systems

Systems like RISE® and SLIPSIL Plugs use expanding rubber inserts and sealants to provide fire, water, and gas protection. They are designed for multi-cable penetrations and eliminate the need for bolts or metallic parts that may corrode. Duct and Pipe SealingNOFIRNO® Duct Seal System is used for watertight and gas-tight protection for cable ducts, manhole entries, and duct bank entries, suitable for harsh industrial and offshore environments.

Installation Considerations

Sealing units can be installed before or after cable tray and cable installation, providing flexibility during construction or maintenance. Standard sizes fit most floor and wall applications, but custom solutions are available for high cable volumes or unusual layouts. Materials are typically non-toxic, chemically neutral, and corrosion-resistant, ensuring long-term durability.

Benefits

Maintains fire and smoke compartmentation in horizontal cable tray routes. Provides watertight and gas-tight protection for critical infrastructure. Simplifies maintenance and cable changes without compromising the seal.

Ensures compliance with building codes and safety standards. In summary, horizontal cable tray sealing combines fire-rated, watertight, and flexible solutions to protect cables and infrastructure while allowing for high-volume and complex cable installations. Products like FYLLOFOAM®, ACTIFOAM®, WSP weatherstops, and NOFIRNO® systems are widely used to achieve these objectives.