Primus Line®

Danaher & Walsh APS is one of just three authorised installers of Primus Line® in the United Kingdom.

Primus Line logo

Primus Line® is a revolutionary product from German construction group Rädlinger, which provides trenchless rehabilitation of pressure pipes.

The system consists of a flexible Kevlar® reinforced liner and specially developed end fittings. Primus Line® is not bonded to the host pipe and is self-supporting. 

Pipes up to 500m diameter and up to 5.3km in length can be rehabilitated in a single installation. The Primus Line® can also pass through an infinite number of bends of 45° or less. The product uses no chemicals and has no curing time. When fully installed, Primus Line® is able to withstand extremely high pressures.

Danaher & Walsh APS Primus Line® installations are guaranteed for 50 years. What's more, because the Primus Line® does not bond to the host pipe, it can be easily removed for replacement - not that you will ever need to do this.

The very small reduction in effective pipe diameter will have no negative effect on flow rate, because of the greater hydrodynamic efficiency of the Primus Line® itself. 

This product is an extremely cost-effective way to massively extend the life of a pressure pipe system with minimal intervention and outstanding reliability.

Contact us to ask how we can use this cutting-edge technology to help you.

For more information about this product, download the Primus Line brochure below.

Primus Line section
Section of Primus Line in situ