Pressure Pipe Relining

Pressure pipe relining is a semi-structural integral system that uses liners and couplings which can ensure a tight fit to the host pipe during installation. It is both rigid and flexible, maintaining its shape within the host pipes even without internal pressure. It can navigate bends of up to 45 degrees or 90 degrees with a 5D radius, making it versatile for various pipe configurations. It is ideal for pipeline rehabilitation where the traditional repair method of remove and replace is not feasible.

There are four different categories of pressure pipe liners:

• Water liner – for water main pipes
• Hot water liner – for municipal heat systems (with a temperature resistance of up to 95°C or 203°F)
• Gas liner –  for gas pipes onshore or offshore
• Oil liner – for oil pipes onshore or offshore

PipeTech is the New Zealand distributor for ASOE Pipe-in Liner FRFPP Pressure Pipe Rehabilitation, giving us a solution to pressure pipe relining. It is installed by folding the pressure pipe liner into a U-shape, pulling it into the host pipes, and expanding it within the pipes to create a leak-free lining.