Cable tray sleeve sealing

Cable tray sleeve sealing ensures fire, water, gas, and smoke protection for cable penetrations using modular systems, intumescent pillows, or sealants.

Overview

Cable tray sleeve sealing is essential for maintaining the integrity of walls, floors, and structures where cables pass through. Proper sealing prevents the spread of fire, smoke, water, and gas, while also allowing for future cable modifications without compromising safety. Types of Sealing Solutions1.

Intumescent Fireproof Pillows

Products like AF BAGS are certified under EN 1366-3 for up to EI 240 fire protection. They consist of a non-combustible fiberglass casing filled with intumescent compounds and thermal insulators. Pillows expand under heat to seal cable tray penetrations and can be repositioned for maintenance or cable changes.

Suitable for walls, floors, and sandwich panels, accommodating cables up to 21 mm in diameter with a sealing depth of 120 mm. 2.

Modular Rubber Insert Systems

Systems such as RISE® use expanding rubber sleeves combined with sealants like FIWA® to provide fire, water, and gas protection. These systems are modular, allowing multiple cables to pass through the same penetration and enabling easy future expansion. 3.

Weatherproof and Gas/

Water SealsWSP weatherstops utilize steel frames with water-resistant pads and silicone-based sealants to create a weathertight barrier. Suitable for outdoor, hazardous, or wet environments, these units can be installed before or after cable tray installation and are NEMA classified up to 4X. 4.

Roxtec Modular Seals

Roxtec solutions provide flexible, certified seals for fire, water, gas, and EMC/EMI protection. Frames can be bolted, welded, or cast into walls and floors, supporting high cable density and allowing easy addition or replacement of cables. Specialized versions exist for underground applications with constant water pressure.

Installation Considerations

Measure the cable tray dimensions to select the correct size and number of sealing units or pillows. Ensure compliance with relevant standards such as EN 1366-3, UL 1479, or local fire codes. Modular systems allow for maintenance and future cable additions without dismantling the seal.

For outdoor or wet environments, use weatherproof frames with corrosion-resistant materials and silicone-based sealants.

Key Benefits

Fire Protection: Prevents fire spread through cable penetrations. Water and Gas Tightness: Protects against leaks and environmental hazards.

Maintenance-

Friendly: Modular and repositionable systems allow easy cable changes. Compliance: Certified solutions meet international fire and safety standards. Cable tray sleeve sealing is a critical component in industrial, commercial, and offshore installations, ensuring safety, operational reliability, and compliance with fire and environmental regulations.