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Firoblok Intumescent Conduit Sleeves

Product 110


Fire resistant sleeve to protect cables passing through one side of a wall and out the other

£0.00 ex. Vat


Intumescent Conduit Sleeves

Intumescent conduit sleeves, fire-resistant sleeves which fit tightly around electrical conduits passing through walls, floors, and ceilings.

Protrudes from the wall on both sides, protecting the entire length of the conduit inside the wall. Expands inwards in a fire and compresses the conduit to stop fire from spreading through it.

When used on steel, cast iron or copper pipes cools the pipe down and acts as an insulator between the sides of a firewall. Moreover, a very important product to prevent fire from penetrating into adjacent rooms and floors. Available in either a blue or silver variety.

  • Provides up to 122 minutes fire and smoke protection for electrical conduits passing through fire barrier walls
  • Suitable for walls made from block, brick, concrete and hollow plasterboard

Refer to the order references tab for available options.

Specially designed passive fire range to meet Document B of Building Regulations, and also tested to European Standards. Explore our further range of Firoblok Sleeves and Ducting Protection online now.

Envirograf ® passive fire products carry the hallmark of excellence, reflecting the high standards that prevail in its laboratory, test rig, and manufacturing plant. Envirograf® passive fire products are subject to rigorous quality control which, at all stages, ensures products remain at the leading edge of fire containment technology. This quality has earned the company and its passive fire products a high reputation. With its operating system accredited to ISO9001.


– A complete unit providing up to 122 minutes fire and smoke protection for electrical conduits passing through fire barrier walls made from block, brick, concrete and hollow plasterboard- Designed to fit tightly, allowing the sleeve to protect conduits where they pass into a range of electrical socket or switch boxes

Application Instructions

The semi-flexible tube is pushed into the hole for the services – cut to the right size to suit depth of
wall or floor. The semi flexible tube can be cut and fitted around the cables etc. and adhered with the self-adhesive tag then pushed into the wall.
The Intumescent Protection Sleeve System can be fitted over existing services and comes in 20mm and 25mm diameters to fit into sockets or BESA boxes.

Order References / Sizes

Ref                  Profile

[ BLUE ]

110C20              20mm diameter

110C25              25mm diameter



110OC20             20mm diameter

110OC25             25mm diameter