The second of the four hydraulic accumulators of the emergency core cooling system has been installed at elevation of +26.000.

Two cranes were used to perform the operation as the accumulator had to be brought into a vertical position and then installed at its proper location inside the reactor building of the second power unit of the LNPP under construction. The weight of the equipment assembled with a lifting device was approximately 90 tons.

Specialists of JSC MSU-90 were responsible for the assembling operation while personnel of PJSC Northern Building Directorate was in charge of the operation of hoisting mechanisms.

It is planned to mount all the ECCS hydraulic accumulators inside the reactor building within a week. Thus, it will allow to proceed to covering the reactor building with a dome.


Titan-2 Holding is the largest in the North-West group of companies, constructing the most important nuclear industry and power facilities. The company performs a full range of construction and installation works from engineering to commissioning.

Titan-2 Holding is the general contractor for the construction of the Leningrad NPP-2 power units. The Holding Companies perform all the civil, installation, and electrical works at a construction site. The works are carried out in the reactor, turbine, power supply, water supply, heat cogeneration buildings and other power unit structures.

The Holding is the main contractor for the construction of the Hanhikivi-1 NPP in Finland.