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.
Primus Line® is a flexible sliplining solution for the trenchless rehabilitation of pressure pipelines.
The system consists of a flexible Kevlar®-reinforced liner and specially developed end fittings. The liner is self-supporting and not attached to the host pipe – an annular space remains. Developed by experienced engineers, the system is suitable for different media as well as various other applications and has already proven itself in numerous projects: besides the rehabilitation of damaged pipelines, it can also be used to increase the pressure within existing systems, protect them from corrosion and build bypass systems or stand-alone solutions.
The Primus Line® system is certified in many countries – for example Australia, the USA, Germany, Canada and Israel – and meets the highly demanding standards for the transportation of drinking water worldwide. Primus Line® is available in nominal diameters ranging from DN 150 to DN 500 (6 inches to 20 inches).
Composition of the Primus Liner
Its multi-layer structure, as well as the small wall-thickness, make Primus Line® the ideal system for the trenchless rehabilitation of pressure pipes: Stable and secure, with diverse areas of application and high levels of efficiency. The outer layer consists of an abrasion-resistant PE sheath to protect the liner during installation. The Kevlar® fabric consists of seamless woven aramid fibres, which accommodate the operating pressure. The inner coating is fluid specific, made from PE or TPU.
Primus Line End fittings
For the connection of Primus Line to the host pipe, two systems are available: The Primus Line low pressure system (picture) ranging from 12 bar to 28 bar as well as a Primus Line connector for medium and high pressure applications ranging from 16 bar to 55 bar. According to requirements, the connector can be equipped with either a flange or welding end, and enables the connection to adapter pieces, T-pieces and valves.
Primus Line in practice
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 ranging from DN 150 to DN 500.
Q2 2017: Sydney Water Corporation (SWC) is a New South Wales owned government corporation responsible in providing safe drinking water and sanitation services to over 5 million Sydney residents. In January 2017, SWC approached Primus Line in regards to the rehabilitation of two critical trunk ma...| » Further reading
Q1, 2017: The „Nuovo Scillato“ water main is one of the main drinking water conduits of Palermo and the coastal municipalities east of the city. Built in the 80‘s to supplement and reinforce the old Vecchio Canale Scillato system, it conveys water from four springs that issue f...| » Further reading
Q3, 2016: The network operator United Utilities plc and Amey plc, located in the Northern part of the United Kingdom, were confronted with a leaking sewer rising main. The ductile iron pipe was installed in the 1970s and showed significant deterioration. Pinholes were present and the wall thickn...| » Further reading
Rädlinger primus line GmbH
Kammerdorfer Str. 16
Phone: +49 9971 4003-100
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