Durapipe PL-X fuel systems are designed to safely convey petrol, diesel and fuel oil in below ground applications while ensuring harmful emissions of volatile organic compounds cannot escape into the environment.

Under pressure or vacuum, PL-X fuel systems have a 30 year design life and exceed the performance requirements of the Energy Institute (formerly the Institute of Petroleum) performance specification for underground fuel systems, OFTEC and international standards.

Durapipe PL-X fuel systems are co-extruded using virgin grade materials and have a polymeric structure that combines the strength and ductility of polyethylene with the chemical resistance of a polyamide liner.

The tough outer layer provides excellent resistance to abrasion, mechanical and physical abuse and is corrosion and maintenance free. The brightly coloured bonded polyamide lining and composite pipe structure ensures negligable permeation, low absorbsion and dimensional stability.

Additional security against accidental fuel loss and environmental damage is achieved using the Durapipe PL-X double contained pipe system. This unique pipe is manufactured in-line with a PL-X primary pipe sheathed by a robust close fit polyethylene containment pipe. The containment is colour coded green for identification and is pressure rated to 4 bar. It also incorporates internal self-centring ribs that enhance the combined strength of the system.

Double contained fittings are connected to the pipe using electrofusion joints. The carrier and containment system can be fused and pressure tested independently. Electrofusion fittings use the standard voltage of 39.5V for use with manual or barcode electrofusion control units.

Periodic pressure testing of the carrier pipe can be used to verify the reliability of the system. On remote or unattended systems leak detection systems can be installed to continuously monitor for accidental losses or accidental damage. Multi-port manifolds are used to simutaneously monitor zoned pipes or multiple fuel lines. Alarms and/or warning devices can also be fitted.