Primus Line® Overland Piping as a bypass pipeline: quick to install, reusable, reliable
Our Overland Piping system is a flexible, above-ground piping system for temporary or long-term supply, particularly in the drinking water sector – for example, during rehabilitations, repairs, outages or as part of emergency preparedness.
It has been specially developed for the above-ground transport of demanding and potentially hazardous fluids.
Which bypass applications is Primus Line® Overland Piping suitable for?
Rehabilitation, repair and maintenance of pipelines
For the duration of planned or unplanned works, the bypass – a temporary pipeline that can be installed quickly – takes over the supply.
Back-up water supply
Primus Line® Overland Piping serves as a mobile pipeline between the feed-in point, the elevated tank or the network section.
Emergency piping
Primus Line® Overland Piping is an ideal solution in the event of damage to pipelines caused by landslides, flooding or forest fires.
Emergency preparedness and contingency planning
The storable and reusable bypass pipe is a system component for local authority and industrial contingency plans.
Long-term temporary supply
For construction work, remote routes, in woodland areas or sensitive environments, Primus Line® Overland Piping is a superior alternative to traditional solutions.
Why select Primus Line® Overland Piping for mobile bypasses?
Whether it is a time-critical situation or a planned operation: simply transport Primus Line® Overland Piping on its reel to the site, unroll it and connect it.
Storing long lengths of pipe on reels reduces transport and handling effort.
Once dismantled, rolled up and stored, the bypass pipe remains available for future use.
Primus Line® Overland Piping is suitable for off-road use: the system can be laid in roadside ditches, in woodland, in sensitive areas or in difficult-to-access sections.
Depending on the specific circumstances, the use of Primus Line® Overland Piping significantly reduces – or even completely eliminates – the need for tanker lorries to make frequent journeys to deliver replacement and emergency water supplies.
Examples of fields of application
Conventional bypass
Emergency pipeline
Reusable transport pipeline
References
Bodensee Wasserversorgung, Germany - Kit
- Purchase of 1,100 m of DN 300 W-Liner on a new overland reel with swivel unit
- First application in Kirchhausen near Heilbronn
- Security of supply during repairs to a large, elevated tank pipeline
- Subsequently stored for reuse
Detmold, Donoper Teich, Germany – „blue snake“
- Bypass installed as part of the rehabilitation of an underground drinking water pipeline
- DN 300 drinking water bypass, 2,000 metres long, with an operating pressure of 43 psi
- Laid through a nature reserve and across water bodies
Heigenbrücken, Germany
- Bypass for long-term operation over several months
- DN 150 drinking water bypass, 1,250 m in length
- Laid without a protective pipe in the forest in a shallow trench, then backfilled with soil
Roding-Piendling, Germany
- Bypass installed as part of the rehabilitation of an underground well water pipeline
- DN 300 drinking water bypass, 800 m long, with an operating pressure of 36 psi
- Laid through meadows and across fields
Camargue, France
- Bypass installed as part of the rehabilitation of an underground brine pipeline
- A 1,000-metre-long bypass is being used across eight sections whilst the 8-kilometre-long brine pipeline is being rehabilitated
- Ensuring the supply to a production plant
- Project duration of 18 months, with interruptions during the summer due to the regional risk of bushfires
Messina, Italy
- Triple emergency bypass DN 300 in Messina following a landslide, to replace a drinking water pipeline DN 1000 (in 2015)
- 3 x 350 m = 1,050 m
- Low-pressure liner
- Installed in just 30 hours on a mountainside with a gradient of up to 50%
- Flow rate of approximately 660 litres per second at a velocity of 3.66 metres per second, amounting to some 57,000 m³ per day
Saint-Martin-Vésubie (near Nice), France
- Emergency pipeline following a historic flood that had cut off the water supply
- 1,340 m of DN 150 pipework laid alongside a road running alongside the River Le Boréon and suspended in a PVC pipe across the riverbed
- Laid in just four days without the use of lifting equipment on site
Frequently asked questions
A bypass pipeline is a pipeline system that can be laid above ground for the temporary transport of fluids.
Bypass pipelines are used to provide a temporary or long-term supply during rehabilitations, repairs or breakdowns, or as part of emergency preparedness measures.
Primus Line® Overland Piping is primarily used for the above-ground transport of water and other demanding and potentially hazardous media.
Yes, the W-Liner is hygiene-certified and can also be used for temporary above-ground transport.
Using the ready-made kit comprising a liner and pre-assembled connectors, lengths of up to 6,000 metres can be installed each day.
From a few hours in an emergency to several months for long-term operation; depending on the operating conditions, it may even be possible for it to remain in use for up to several years.
Yes, this is possible. To ensure long-term safety and increased durability, we recommend, for example, drive-over hose bridges at road junctions.
Yes, thanks to the system’s flexible yet robust design, the liner can be unwound and rewound several times and stored temporarily.
In short: a backup water supply is a temporary replacement for the normal water supply, whilst an emergency water supply is provided in the event of an absolute emergency:
| Aspect | Backup water supply | Emergency water supply |
| Significance | Temporary replacement for the regular water supply | Provision in an acute emergency |
| Objective | Maintain the disrupted supply | Ensuring basic necessities |
| Scope | Usually considerably more comprehensive | Just the bare essentials |
| Duration | Until services are restored | Short-term |
| Scenario | Planned or unforeseen interruptions to the normal supply | Disasters, major incidents, emergencies |
| Priority | Ensuring the most continuous possible supply to households and organisations | Drinking water and basic necessities |
| Example | Supply via alternative lines, tankers or other sections of the network | Water distribution at emergency distribution points |
Primus Line® Overland Piping can help to maintain the water supply in both cases – as a technical component: in providing a backup water supply for the relevant water supplier or network operator, and in emergency preparedness for the emergency services involved, such as the fire service, district control centres or crisis management teams.
Primus Line® Overland Piping requires significantly less construction time, reduces transport costs and can be installed using simple tools.