Reconstruction of the Moskovskaya Major heatinggrid is drawing to a close

Experts of JSC St. PetersburgHeatingGrid and contractors have started integral reconstruction of the Moskovskaya Major heatinggrid, a one of the key object of the Company's investment program in 2012. This summer, the power engineering specialists will completely replace a 1.17 km insecure section of the main pipeline, 700 mm in diameter, which is located under the roadbed of Aviatsionnaya Street from Lensoveta Street to Moskovsky Avenue.

This is the final stage of a large-scale project of raising the efficiency and quality of heat supply for locals. At present, the area has been prepared, and a temporary pipeline has been assembled and is being commissioned, which will supply hot water to buildings during the Major heatinggrid reconstruction.

Teploset is laying the new Major heatinggrid in coordination with other jobs on the city transport infrastructure to avoid any extra inconveniences for the people. Reconstruction will be complete in three months, and once the buildings are switched from the temporary pipeline to the new one, the roadbed will be handed over to special companies for street railway overhaul. Final finishing of the area is scheduled for the end of August when the pavement and lawns will be restored.

The Major heatinggrid is modernized at the cost of the Company's own funds with application of energy efficient technologies and materials. Modern pipes in foamed polyurethane heat insulation with conductors for online remote moisture rate control are laid. Foamed polyurethane pipe insulation makes it possible to reduce heat loss by many times and to avoid contact with ground water, which will prevent corrosion development. The normative life limit of this new generation of pipes is 25-30 years.

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Moskovskaya Major heatinggrid is a basic part of the heat supply system of St. Petersburg. It supplies hot water and heat to residents and customers in most of the Moskovsky and part of the Frunzensky districts. The total length of the main is over 21 km of pipes. The heat supply area of Moskovskaya covers 655 various buildings, of which over 500 are residential buildings and many more are social institutions including the Gastello City Hospital No. 20.

The power engineering specialists started technical reconstruction of a section of this main on Lensoveta Street in 2010 when 1.064 km of a pipe, 800 mm in diameter, on Lensoveta Street from the Southern drive of Tipanova Street was reconstructed. In the second stage in 2011, a 936-m long pipe section, 700 mm in diameter, on Lensoveta Street from the Southern drive of Tipanova Street to Aviatsionnaya Street was replaced.

Generally, modernization of Moskovskaya is a systemic process that has been in process since 2007. In 2007-2011, several more heat pipeline sections with a total length of about 5 km of pipes were reconstructed in addition to the facilities on Lensoveta Street.