Eesti Energia Narva Elektrijaamad (Estonian Energy Narva Power Plants) is the largest producer of electrical energy in Estonia and one of the most important power producers in the Baltic region. In 2010 the company started a renovation project for its cooling water circulation pipelines located in the Estonian Power Plant production facility.
The existing circulation pipelines were in a really bad condition, including rust, deformations of the pipeline itself, leaks, etc. A solution was needed to renovate the existing OD1600 pipeline with optimal cost and to guarantee its lifetime for a minimum of 30 years after the renovation works. Different solutions were considered, amongst them GRP, metal, different relining options, chemical treatment, etc. The chosen solution was to use polyethylene pipes ID1400 produced by Krah Pipes.
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