Logo Made in Germany Singapore International Water Week 2018

Rädlinger primus line GmbH

Booth number: B2-N09

About us

Rädlinger primus line GmbH is the manufacturer of the Primus Line® system, an innovative relining solution for the trenchless rehabilitation of pressure pipes for different applications such as water, gas and oil. The system consists of a flexible Kevlar® reinforced liner and specially developed end fittings. Clients benefit from long insertion lengths of up to 2,500 m in one single step and the product’s ability to traverse bends of up to 45 degree. Primus Line® is not bonded to the host pipe and is self-supporting. An annulus remains between Primus Line® and the host pipe.
Small construction pits, short rehabilitation times and the low level of impact on the environment, make Primus Line® the ideal technology for the rehabilitation of defective lines in sensitive environments. Developed by experienced engineers and more than 15 years in business, the system is suitable for various application needs and has already proven itself in numerous projects.

Products and services

The liner is one of two parts of the Primus Line® system and consists of three different layers. The outer coating protects the internal load-bearing core structure during the installation process. Regardless of the type of fluid transported, this layer is made of an abrasion-resistant polyethylene. Depending on the required pressure rating, the core structure is made of either one or two layers of seamless woven Kevlar®. The aramid fabric absorbs the pulling force during the insertion of the Primus Liner as well as the operating pressure. Its inner coating varies corresponding to the medium transported. For drinking water applications, the liner is based on polyethylene while for its use in the oil and gas industry thermoplastic polyurethane is the preferred solution because of the often higher requirements concerning chemical resistance. Due to its composition of multiple layers and a low wall thickness, the Primus Liner unites both flexibility and ultra-high material strength.

Schematic view of the Primus Liner

Schematic view of the Primus Liner

Primus Line Connextors

Primus Line Connextors

The second part of the Primus Line® system are specially developed
termination fittings which are divided into two categories: connectors
for low pressure and connectors for medium and high pressure.


Rädlinger primus line GmbH
Kammerdorfer Str. 16
93413 Cham

Phone: +49 997 14003100

Carina Wich
Marketing Manager
Phone: +49 9971 40032041

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