Smart LPG


Smart LPG

Complete Pipe and Fitting System for the transport of LPG

SMARTlpg is the product range developed by NUPI Industrie Italiane S.p.A. for the conveyance of LPG.

It is a thermoplastic piping system reinforced with Polyester fibres. It is non hydroscopic, biocompatible and 100% recyclable.

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The quality of the materials used and the stringent quality controls guarantee its reliability for more than 50 years and ensure a product warranty of 25 years.

The SMARTlpg system is used in underground installations for the conveyance of automotive LPG from tank to dispenser.

The SMARTlpg system is suitable for the following installations:

  •     Product
  •     Filling
  •     Vent
  •     Vapour recovery

Thanks to its Polyamide inner barrier liner, the SMARTlpg piping is suitable for the conveyance of LPG.

  • Main features


The SMARTlpg pipe has an inner layer made of a special Polyamide resistant to LPG, an intermediate reinforcing layer made of closed frame Polyester fibre and an external PE100RC (rock pipe) layer that is resistant to crack and point loading.

The construction and design characteristics of the pipe guarantee the following performance:

  • PN 35 bars (508 psi)
  • Bursting pressure > 200 bars (2900 psi)
  • Resistance to the transported fluid
  • Durability for over 25 years
  • Flexibility
  • Resistance to corrosion
  • Limited head losses
  • Resistance to abrasion


The SMARTlpg fitting range includes Chrome-Molibdene 4 steel alloy fittings made up of a terminating fitting and a crimping bush.

They have a resilience to low working temperatures higher than 27 Joules.

Flanged fittings and male threaded termination fittings are available with the following thread types:

  • BSPP cilindric gas threaded and conical ogive with 60° gas tightness
  • BSPT conic gas threaded
  • NPT conic gas threaded

Threaded flanges for flanged connections (EN1092-1) and fittings with stub end and flange with crimping bush are also available.