Pre-Insulated Pipes


The pre-insulated piping system consisting of carbon steel as the core pipe and high density polyethylene (HDPE) as the jacket pipe has been the most successful system used in pre-insulated piping networks throughout the history of the industry.This sytem is used for the underground transport of hot and cold fluids at working temperatures in the range -32° C to +142° C, it is a very durable and versatile system and can cover virtually any diameter required by the client.This production is made according to European standards EN253 or to specific project requirements.


The pre-insulated piping system is made up of a carrier pipe, polyurethane foam insulation and a high density polyethylene jacket pipe as follows:

Steel, Galvanized Steel and Copper depending on the client requirements.

Rigid cellular 100% CFC free polyurethane foam factory injected between core pipe and outer casing, the density of the foam can be between 32 kg/m3 and 60 kg/m3 depending on the client requirements.

The outer casing/protective jacket is made of extruded black, UV resistant high density polyethylene having a density of 950 kg/m3.


  • Factory manufactured with uniform quality for each component.
  • Easy and quick to install.
  • No concrete tunnels, supports or others.
  • 100% water tightness.
  • No humidity corrosion and/or stray currents.
  • Very good chemical resistance.
  • Resistance against rodents.
  • Very good abrasion resistance.
  • Longer life without maintenance.

 Fields of Application
  • District cooling and heating
  • Oil pipelines
  • Industrial pints
  • Airports - Ports
  • Trade centers
  • Exhibition centers
  • Universities areas
  • Hospitals
  • Military areas