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About This Item


Full Description

This Standard covers:
  • aluminum-polypropylene (AL-PP) composite pipe consisting of a core of extruded polypropylene (PP) surrounded by a welded aluminum (AL) tube joined by a melt adhesive; and
  • fittings intended for use with the AL-PP composite pipe.
Piping systems covered by this Standard are intended for use in residential and commercial:
  • hot- and cold-water supply and distribution systems;
  • fire protection systems;
  • radiant panel heating systems and hydronic baseboard heating systems;
  • compressed air distribution systems; and
  • gas distribution systems;
and pressure-rated for:
  • 1,600 kPA (232 psi) at 23 °C (73 °F);
  • 860 kPa (125 psi) at 82 °C (180 °F); or
  • both.

Document History

  1. IAPMO IGC 239-2014


    Aluminum-Polypropylene (AL-PP) Composite Piping Systems

    • Most Recent
  2. IAPMO IGC 239-2007

    Aluminum-Polypropylene Multilayer Piping Systems for Hot- and Cold- Water

    • Historical Version