**Buy as many as you like and only pay £7.95 for delivery**


Envirograf Intumescent Firoblok Pipe/Cable Sleeves 150mm Long - upto 4 Hour Fire Protection

  • Firoblok sleeves are made of a fibre free intumescent material. 
  • Ideal for protecting cables, metal and plastic pipes where they pass through fire-rated block, brick, concrete or hollow plasterboard walls & floors.
  • No more corrosion problems due to copper pipes having contact with concrete surfaces
  • Meets all regulations
  • Allows for expansion and contraction of hot pipes
  • Gives up to four hours protection
  • Easy to cut; no more sawing and de-burring steel pipes
  • Can be cut with a knife and off-cuts can be taped together, leaving no waste
  • Will last a lifetime in-situ and will not degrade or deteriorate

APPLICATION INSTRUCTIONS

  • Mark the outline for the Firoblok sleeve on the substrate.
  • Cut out the hole with a powered hole cutter or padsaw and clean down edges.
  • Fit the Firoblok sleeve over the vent and fit to the ducting or service passing through.
  • Push the assembly back into the substrate until flush.

    • FIRE TEST PERFORMANCE

      Tested to BS476 Part 22 (1987), achieving an integrity of 130 minutes in solid walls, 67 minutes in hollow walls, and 4 hours in concrete/block ceilings and walls.

      Tested to European Standards EN1366-3 (2005), EN1363-1 (2000), and EN13501-2 (2004).


    Sizes available:


  • For pipes

  • Ref                  Internal diameter            External diameter

    IWS18              18mm                                29mm

    IWS25              25mm                                31mm

    IWS33              33mm                                43mm

    IWS40              40mm                                50mm

    IWS50              50mm                                60mm

    IWS55              55mm                                63mm

    IWS60              60mm                                70mm

    IWS83              83mm                                93mm

    IWS90              90mm                              100mm

    IWS100          100mm                              110mm

    IWS115          115mm                              125mm

    IWS127          127mm                              137mm

    IWS150          150mm                              160mm

    IWS165          165mm                              176mm

    IWS215          215mm                              226mm