These pipelines are an important element of the turbine generator cooling system. Turbine cooling water comes through them from the cooling tower.

Due to the large dimensions, the pipelines were delivered to the construction site in disassembled form - in three parts, with one segment having a diameter of over 3 meters and weighing 25 tons.

Pipelines pre-assembly was performed directly at the installation site, followed by ultrasonic inspection of welded joints. After that, the pipeline was installed in the design position. After hydraulic pressure testing of the equipment, the foundation slab will be concreted.


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.