The SMARTlpg system has been successfully installed in a servce station in Croatia. SMARTlpg is the product range developed by NUPI for the conveyance of LPG. It is a thermoplastic piping system reinforced with Polyester fibres. It is non hydroscopic and biocompatible. 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 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 resistance to the transported fluid, durability for over 25 years, flexibility, resistance to corrosion, limited head losses and resistance to abrasion.