ZZ blug

A temporary or permanent firestop for structures made of rock materials. May also be used for light frame walls with a separate casing.ZZ blug (ZZ 130)

A temporary or permanent firestop for structures made of rock materials. May also be used for light frame walls with a separate casing.

Especially handy as a temporary firestop during construction and in spaces where the required feed-through services change frequently.

  • Can be used even with large cables and cable bundles
  • The flexible structure and easily shapeable composition of the plug make installation effortless

Can be used again and again.

Has the diamond driller arrived at the construction site before the Sewatek D series service penetration? This plug will save the day and serve as a temporary firestop until the permanent firestop penetration arrives.

Technical information

Size selection

  • Installed into a hole at least 10 mm smaller than the product itself.

Maximum hole size

  • Ø 250 mm - 0.049 m²

Cables/pipes that are fed through

  • Insulated cables ≤ Ø80 mm, uninsulated cables ≤ Ø24 mm
  • Cable bundles ≤ Ø 100 mm, with individual cables Ø 21 mm
  • Metal and plastic pipes ≤ Ø 16 mm 

Fire class: EI 60 – EI 120 

ETA-12/0088

Degree of filling for pipes / cables max. 60% of the surface area of the hole.