Pexline Freezing Conditions & Fire Information

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Freezing Conditions

Pexline PE-X Pipe is a good choice for water reticulation in climates where freezing conditions are possible.

Pexline PE-X Pipe will absorb the expansion of frozen water within itself as well as the additional expansion created by the water freezing inside a rigid fitting and expanding into the pipe.


Fire Information

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Pexline products are difficult to ignite, and are therefore defined as combustible, but not highly flammable.

Where Pexline PE-X pipe is installed and penetrates fire resistant construction, the fire resistant integrity of the construction must be retained. This can commonlybe achieved through the use of fire rated silicone (or similar) or fire-stop collars but refer to the local building code.

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Please refer to this Passive Fire Protection Guide for PEX Pipes from RyanFire.  
The following V drawings are also available for download:

  • V20.1 for penetration seal to PEX pipe through plasterboard wall
  • V20.3 for penetration seal to PEX pipe through plasterboard patch & plasterboard wall
  • V20.6 for PEX pipe through fire wall with Intubatt & plasterboard wall
  • V22.6 for penetration seal to PEX pipe through concrete floor
  • V22.9 for PEX pipe with fire collar & sealant through plasterboard ceiling.

For more information on passive fire protection solutions for plumbing (such as fire collar and sealants), or for expert guidance to achieve the required rating and protection, please contact Ryanfire (email, phone 09 443 0362 for the Auckland office or 03 348 9279 for the Christchurch office) or refer to their website (

Fire collars are also available from Allproof Industries, please contact them for more information or refer to their website ( 


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