Infra Technology

Field joint coating of steel pipes

Field joint coating of steel pipes

The ever-expanding oil and gas pipeline network around the world is nowadays mainly built by using plastic coated steel pipes because the plastic coating gives great life expectancy and superior mechanical and corrosive resistance to the pipe.

Uponor Infra and Borealis have developed a new –patent applied–system for coating of field joints. The system is based on Borealis newly developed Borcoat™ material and the Wehocoat machine developed by Uponor Infra Technology.

The Wehocoat Machine is a device specially developed for extruding a molten PE based polymer film onto a steel pipe field joint area for joint protection. This field joint coating method can achieve a joint at site conditions which can fulfill the minimum demands as stated in the ISO - FDIS 21809-1 for a factory coated steel pipe and is defined according to ISO 21809-3 section 5E.

Models are either for on-shore or off-shore applications.