{"id":128,"date":"2025-12-18T15:50:00","date_gmt":"2025-12-18T15:50:00","guid":{"rendered":"https://vikingjohnson.com/sv-se/?post_type=market&p=128"},"modified":"2026-09-30T14:56:10","modified_gmt":"2026-09-30T13:56:10","slug":"repair-maintenance","status":"publish","type":"market","link":"https://www.vikingjohnson.com/sv-se/market/repair-maintenance/","title":{"rendered":"Repair & Maintenance"},"content":{"rendered":"\n
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Overview

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Pipeline Repair & Maintenance

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Maintaining pipeline infrastructure is an ongoing challenge for water and wastewater utilities. Ageing assets, increasing leakage targets, and rising operational costs are placing greater demand on maintenance teams to deliver fast, effective repairs while keeping networks operational.

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By adopting practical, adaptable repair and maintenance strategies, utilities can better manage ageing networks, reduce leakage, and maintain service continuity while controlling cost and disruption.

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Example of soil shrinkage in dry periods and soil swelling in wet periods flexing a buried pipe.
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\n\t\t\t\tKey Utility Industry Challenges\n\t\t\t\t
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Ageing infrastructure

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Much of today’s pipeline infrastructure has exceeded its original design life. Over time, factors such as corrosion, ground movement, and pressure fluctuations weaken pipes and joints, increasing the risk of leaks and bursts. In many cases, full replacement is not practical, making reliable, targeted repair solutions essential to extending asset life and maintaining performance.

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Leakage at joints

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Leakage remains one of the most pressing issues, often occurring at joints, connections, or deteriorated pipe sections. Repairs are frequently required under live conditions, where the priority is to quickly restore integrity, minimise water loss, and avoid disruption to supply. This demands solutions that can be installed rapidly and perform reliably under pressure.

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Network variability

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Pipelines are often constructed from a mix of materials, with differing diameters and inconsistent tolerances. This makes standardisation difficult and places greater emphasis on adaptable repair approaches that can accommodate real world conditions without extensive preparation or precise measurement.

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Joint performance & restraint

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Joint performance and restraint also play a critical role in long-term reliability. Traditional joints provide a seal but may not prevent movement under pressure, increasing the risk of joint separation or repeat failure. Modern maintenance strategies increasingly focus on combining sealing and restraint to improve overall system security.

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Thermal, pressure & ground movement

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Pipelines are subject to ongoing stress from thermal change, pressure variation, and ground movement. Without adequate flexibility, these forces can accelerate wear and lead to failure. Effective repair and maintenance approaches must therefore address both immediate issues and the wider mechanical demands placed on the system.

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Constrained environments

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Repairs are often carried out in constrained or high pressure environments, urban locations, restricted excavations, and time critical situations. Solutions must be simple to install, minimise downtime, and reduce the impact on surrounding infrastructure.

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Keeping Critical Infrastructure Flowing

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Maintaining pipeline performance requires reliable solutions for repair, replacement and network upgrades. Explore our projects to see how Viking Johnson products help customers minimise disruption, extend asset life and keep critical infrastructure operating efficiently.

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\n Project: \n \n Mains Water Upgrade – Nimes, France\t\t\t\t\n

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Installation of a new flow meter to collect water consumption data for analysis to locate leaks and minimising water loss in their network…

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\n Global/VJ Icons/icons-sector-industrial\n \n \n \n \n \n \n \n \n \n \n\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\tRepair & Maintenance\n\t\t\t\t\t
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\n\t\t\t\t\t\t\n\t\t\t\t\t\t\tProducts (2)\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t1: UltraGrip Amplified Flange Adaptors\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t2: UltraGrip Flange Adaptors\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t
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\n Project: \n \n UltraGrip Pipework Upgrade – Coesfeld\t\t\t\t\n

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A leaking, severely corroded DN400 grey cast iron main in Coesfeld, Germany, repaired with a DN400 UltraGrip coupling in just 35 minutes.

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\n Global/VJ Icons/icons-sector-industrial\n \n \n \n \n \n \n \n \n \n \n\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\tRepair & Maintenance\n\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t1: UltraGrip Couplings\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t
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\n Project: \n \n UltraGrip Amplified for Ise Valley, Stanton Cross\t\t\t\t\n

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UltraGrip Amplified DN700s were installed at Stanton Cross to repair a sewage main that burst near Wellingborough over Christmas 2022.

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\n Global/VJ Icons/icons-sector-industrial\n \n \n \n \n \n \n \n \n \n \n\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\tRepair & Maintenance\n\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t1: UltraGrip Amplified Flange Adaptors\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t
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\n Project: \n \n Large Diameter – Mains Burst – Liverpool\t\t\t\t\n

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During the summer of 2011, an area of Liverpool experienced catastrophic flooding when a water mains pipe burst, sending huge plumes of water into the air.

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\n Global/VJ Icons/icons-sector-industrial\n \n \n \n \n \n \n \n \n \n \n\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\tRepair & Maintenance\n\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\"Water\"\n\t\t\t\t\t\t\t\t\t\t\t\tWater\n\t\t\t\t\t
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\n Project: \n \n Prague Water – Pipeline Network Refurbishment\t\t\t\t\n

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UltraGrip Amplified couplings and flange adaptors used to refurbish a critical DN800 water main serving 85,000 people in central Prague.

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\n Global/VJ Icons/icons-sector-industrial\n \n \n \n \n \n \n \n \n \n \n\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\tRepair & Maintenance\n\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t1: UltraGrip Amplified Flange Adaptors\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t2: UltraGrip Amplified Couplings\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t3: UltraGrip Flange Adaptors\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t
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\n Project: \n \n Welsh Rising Main Project\t\t\t\t\n

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Over a million people will be walking over a Viking Johnson AquaGrip Flange Adaptor in Wales this year.

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\n Project: \n \n Chessy City Leak Repair\t\t\t\t\n

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Two bespoke DN600 UltraGrip couplings rated at 7 bar fixed a leak on a drinking water network in Chessy, France.

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\n\t\t\t\tRecommend Products\n\t\t\t\t
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Recommended Repair & Maintenance Products

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Many of the products in the Viking Johnson’s portfolio, like UltraGrip , MaxiFit , EasiRange & HandiRange offer solutions to the technical challenges faced by consultants’ engineers, contractors and owners working in the power generation sector.

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Maintaining pipeline infrastructure is an ongoing challenge for water and wastewater utilities. Ageing assets, increasing leakage targets, and rising operational…

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