New ptj Issue 3-2019
Digitalization in the Pipeline Industry
The new PALIMEX®-880/-855
The two-tape system reliably protects your pipeline – and saves your budget.
Operations & Integrity Management and Compliance in an age of IIOT
Steve Hill >>> Honeywell Process Automation Solutions
New Technologies Drive Operational Performance by Connecting Smart Stations to Distribution Networks
Rossella Mimmi >>> Emerson Automation Solutions
Intelligent Predictive Maintenance in the context of Maintenance 4.0 for Oil & Gas Industry
Dr. Rama Srinivasan Velmurugan >>> GAIL (India)
Digital disruption will occur in Midstream as it is underway in other asset intensive industries
Sam Hemeda >>> Arundo Analytics
The Big Data Revolution: Detecting Pipeline Leaks, Encroachments and more Using Satellites
John Zhou & Caroline Beck >>> Satelytics
Best Practices for Cybersecurity Diagnosis in Industrial Environments
Ernesto Landa >>> Compania Operadora de Gas del Amazonas

DENSO uses new laying method in water for pipeline protection

Reliable pipeline protection with DENSO: New laying method in water

For the rehabilitation of a drinking water pipeline in a district 200 km north-east of Munich, Germany, DENSO managed to protect weld seams from corrosion quickly and efficiently using a new laying method that floats in water.

For this method, the pipeline was first laid in the water: Just ten minutes after applying the DENSOLEN®-AS50 tape system to the weld seam, the pipe was pushed into a tunnel flooded with water. The pipeline was then drained four months later. This is impressive as pipelines are normally not immediately and permanently exposed to corrosive media. The test results provided by the Remote Water Supply Association prove: The standard requirements of DIN EN 12068 for a high-quality protection of the weld seams are satisfied.

Direct flooding and extended operation in water are major challenges for field joint applications. This unprecedented method shows: The three-ply DENSOLEN® tapes fuse together very rapidly. A diffusion-resistant protective hose is quickly generated, with reliable performance even when permanently exposed to fluids. The single-tape system was applied in at least a three-layer wrapping using the engine-driven DENSOMAT®-11 application device.

The drinking water pipeline is one of the region’s main arteries. One of the two steel pipelines, with a nominal diameter of DN 1200, was restored for long-term use. Water flows through two parallel tunnels over almost two kilometres at 1,800 litres per second. The construction measure is expected to be completed in the spring of 2019.

Comments

This is a very important issue for our communities. Maintaining the operating integrity of water system and preventing corrosion in pipes and fixtures can help prevent serious health hazards as well as reduce the high cost to repair or replace down the road.

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