All about Primus Line Kevlar liners for trenchless rehabilitation

At hebs Flowtech we are able to offer Primus Line Kevlar liners for trenchless rehabilitation of pressure pipes across a range of different industrial applications.

Primus Line Kevlar liners overcome some of the common problems faced with industrial pressure pipes, for example:

  • Weaknesses in bends and corners.
  • Loss of strength due to age and corrosion.
  • Sensitive installation environments.
  • Long length pipeline installations.
  • High hydraulic capacity demands.

This is all thanks to the Kevlar construction of the pipes, which strengthens the structure while allowing the walls of the pipe to be much thinner – and this in turn means the inner diameter of the pipe can be bigger, supporting higher capacity and flow rates.


Construction of Primus Line Kevlar liners

Primus Line Kevlar liners have three distinct layers that combine to create a flexible but incredibly strong cross-section:

  • An outer layer of abrasion-resistant polyurethane known as the sheath.
  • A load-bearing Kevlar layer (or double layer) of seamless woven aramid fibres.
  • A media-specific inner layer of polyurethane or thermoplastic polyurethane (TPU).

The single or double Kevlar layer hidden between the polyurethane layers gives the pipe its extremely high load-bearing strength, while allowing the total construction of the pipe walls to be much thinner than if solid high-density polyethylene or a similar material were to be used.

In turn, this maximises flow capacity but also means that these thinner pipe walls are more flexible, and Primus Line can negotiate around bends of up to 45 degrees, with a series of specially designed connectors to navigate around any even tighter corners as required.


Trenchless rehabilitation with Primus Line Kevlar liners

At hebs Flowtech we can install Primus Line Kevlar liners as part of trenchless rehabilitation work, which means less disruption, less delay and less cost to reinstate disturbed ground.

This again is due in part to the flexibility and strength of Primus Line, which can be inserted into the existing pipework in need of trenchless rehabilitation, but does not need to be bonded to the inner surface of the pipe.

Because of their excellent load-bearing strength, Primus Line liners are self-supporting and able to ‘float’ inside the existing pipe, while their thin walls mean only a minimal reduction in the inner diameter of the pipeline.

To find out more about this innovative solution for trenchless pipeline rehabilitation, ask hebs Flowtech about Primus Line Kevlar liners today on +44 0151 236 0707 or by email to

Blue light patch lining cures in place for faster repairs

Blue light patch lining technology is at the cutting edge of pipe repairs, offering faster, more convenient and less disruptive patch repairs for broken pipes.

Also known as cured-in-place pipe, or CIPP, this innovative drain and sewer lining technology uses ultraviolet light – off the blue end of the visible light spectrum – to activate resin patches once they are in place.

This means the resin can be positioned accurately and only then is the curing process triggered, so that the result is extremely reliable and achieved as quickly and cleanly as possible.


Working on blue light patch lining in the north-west

We are proud to be the preferred drainage contractor for many organisations and projects in the north-west, and we also welcome direct enquiries from customers new and old.

Together our ever-growing client base allows us to work on blue light patch lining in the north-west’s towns and cities, across Merseyside, Greater Manchester, Lancashire and beyond, wherever this innovative technology is needed.

It’s also the first time a drainage contractor in the north-west has offered CIPP curing to the facilities management and private sectors, courtesy of hebs Flowtech, our specialist drainage and pipeline services provider.


More benefits of blue light patch lining

The main benefits of blue light patch lining are its ease of use, fast application and curing times, and its availability even in confined areas, but there are many more advantages to using this cutting-edge technology:

  • Position of the blue/UV lights gives excellent control over curing.
  • Multiple patches can be applied quickly and with excellent results.
  • Low energy consumption means no large generators needed.
  • Less landscape disruption means less environmental impact.
  • Easier to make land ready for future use with less digging needed.

If you’re not sure if UV patch lining is right for your project, that’s fine too – just ask and we will be happy to advise on suitability and, if CIPP curing is not suitable for any reason, we can recommend an alternative instead.


Make an enquiry about UV patch lining

To make an enquiry, just get in touch with hebs Flowtech and a member of our team will be happy to help.

For an immediate response, call our team on 0151 236 0707 or if you prefer a reply in writing, you can email and we will get back to you as promptly as possible with an answer to your enquiry or an estimate for your upcoming project.