SMARTFLEX is a complete multi-layer piping system manufactured NUPI Industrie Italiane S.p.A. for the transfer of automotive and aviation fuels, biofuels and hazardous fluids.

The system has many international and local approvals – UL, EN, IP, Kiwa etc. – and is already used and approved major international petroleum companies, in response to whose needs it has been conceived, developed and successfully launched into the market.   


All products are available in a wide variety of sizes and configurations making the system suitable to various kinds of installation. 

All SMARTFLEX primary piping consists of a multi-layer composite wall lined product pipe that combines the excellent mechanical properties of HDPE with the low permeability and high resistance to hydro-carbons of a new class of polymers used in the lining material and creates a level of hydro-carbon compatibility unattainable other fuel pipes available on the market today.

Typical Applications

The most common applications for SMARTFLEX pipes and fittings, both in suction and pressure installations, are as follows:

  • Road and motorway service stations
  • Harbour and marine service stations (Marinas)
  • Fuel distribution in airports
  • Fuel storage tanks
  • Generator connections to fuel tanks


SMARTFLEX has a vast range of pipes and fittings including: Single-wall lined pipes for both product lines and vent/vapor and filling lines.

double-wall pipes

SMARTFLEX has a vast range of pipes and fittings including: Double-wall lined pipes for more demanding containment and monitoring requirements.


A full range of electro-fusion fittings for safe, corrosion-proof joints. Spigot and riser fittings. Mechanical fittings. Flexible and electro-fusion entry boots for positive sealing of sumps. Leak monitoring systems HDPE tank sumps and dispenser sumps. Welding units and tooling.

MAIN features


Single and double wall configuration


Complete range of electro-fusion single wall and double wall fittings, mechanical, spigot and transition fittings. Complete range of entry and terminating boots


Real time monitoring and containment


High impact resistance.
Excellent resistance to corrosion.
Excellent chemical resistance to hydrocarbons, saline, acid and alkaline solutions and environments
Outstanding long-term resistance to pressure


Barcode technology for ease and accuracy of welding during installation allowing for full traceability


Comprehensive range of assembly tools and equipment