SUE «Vodokanal of St. Petersburg»: measures on import substitution in-progress

Summary

Measures that SUE «Vodokanal of St. Petersburg» is implementing to promote domestic production of goods for water and wastewater utilities are presented. The import substitution policy maintained at the enterprise already delivers positive results. The share of imported products in total purchases in 2017 was reduced from 30% in 2014 to 1.5%. Beginning from 2015 Vodokanal of St. Petersburg has been in close contact with the Russian enterprises-manufacturers of products for water and wastewater utilities. Joint activities on promoting Russian products are carried out on the principles of transparent information exchange and co-resolution of arising problems. At present the problem of import substitution of tubular products has been practically solved. There are domestic manufacturers of shutoff and control valves and pumping equipment, and foreign brands that have established local manufacturing in Russia. In the process of reconstruction domestic water meters, pressure gauges and pumping equipment are used. Besides, in the Southern water supply zone «NEMO-AQUA» domestic software has been introduced. In order to overcome the technological inferiority of the Russian industry establishing domestic production of goods with improved characteristics compared to available similar products is required. This approach will provide for increasing the share of applied innovative technologies, products and materials.

Key words

water supply-sewerage services , equipment , water and wastewater systems , import substitution , products , materials , technologies

Efficiency of laying pipes made of ductile iron in seismically hazardous areas

Summary

At the current stage of housing and utilities reformation, with increasingly stringent requirements for the reliability and durability of municipal utility pipelines, the need to develop requirements for the selection of pipe materials and types tailored to the specific conditions of the installation and operation of urban water supply systems is becoming increasingly important. Proper selection of pipe materials is crucial to provide for the reliability of water pipelines in earthquake-prone areas of Russia. It is demonstrated that ductile iron pipes are currently the most promising choice for use in drinking water supply systems in earthquake-prone areas. It is noted that ductile iron possesses high strength properties similar to those of low-carbon steel (ultimate tensile strength, yield strength, and percentage elongation) and improved corrosion resistance. Information on seismic resistance calculations for ductile iron pipelines is provided to verify their safety for use in earthquake-prone areas.

Key words

water supply , reliability , ductile iron , calculation , materials , pipes , earthquake-prone areas