TPT September 2016

T E CHNOLOG Y

Composite repair system applied to own plant HENKEL’s main manufacturing plant in Düsseldorf, Germany, incorporates 18km of pipe bridges and 300km of pipelines. Over time, sections had become corroded, and their repair was subcontracted to the company Xervon. In order to repair leaks quickly, safely and sustainably, Xervon used Henkel’s recently introduced Loctite ® Composite Repair System, also creating a reference site for the process. The system allows corroded pipes to be repaired without interrupting operations, avoiding the high costs associated with unplanned shutdowns. It effectively eliminates the need for pipe sections to be replaced, and extends the lifetime of the repaired pipework system. “Our target is to extend the service life of pipes by 20 years and we are

confident the Loctite Composite Repair System will last far beyond that,” commented Carsten Sperlich, who heads the technical infrastructure department at the Düsseldorf site. The first step of the process is cleaning, by sandblasting the surface of the defective pipe section to a cleanliness level of SIS SA 2.5. The blasting also produces a roughness of 75 micrometres peak-to-valley height in the steel surface, and the resulting surface texture ensures physical anchoring in addition to the adhesive bonding with the coating material. Loctite SF 7515 is applied as a short- term corrosion inhibitor to prevent flash rust. The pipe is then wrapped with several layers of the high strength, glass-carbon fibre tape Loctite PC 5085, which has been impregnated with the two-part epoxy resin Loctite PC 7210. Finally, several layers of topcoat – Loctite PC 7255 – are applied as corrosion protection. The repair system has been certified by DNV CL in accordance with the global quality standard ISO 24817. This standard defines the criteria for the use of composite systems in petrochemical, oil and gas industries. The method has also been approved by Lloyd’s Register, in conformity with ASME PCC- 2 standard, and by TÜV Rheinland. Xervon, one of a growing number of service providers that make up the Henkel Certified Applicator network across Europe, underwent an extensive qualification process to achieve the status. The Composite Repair System is being used in refineries, petrochemical plants, power plants and water treatment systems. Core applications are in the oil and gas industry, where the system can be used in all upstream, midstream and downstream areas.

Manchester Tool and Die

Model M71-E-3 & M71-E-6

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• Up to 40% faster than comparable hydraulic end forming machines

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machine setup • Reduced noise levels • Power savings • Accepts standard M71 tooling • Tube O.D. capacity up to 1.5 ( (38mm) • ISO 9001:2008 certified

Exceeding Expectations Since 1960

Find out how MTD can improve your productivity and bottom line: Call 260-982-8524 or email at quotes@mtdbkb.com

www.mtdtube.com

Henkel AG – Germany Website: www.henkel.com

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S eptember 2016