The critical operation on installation of the deaerator was carried out by specialists of Area no. 6 of JSC "MSU-90" and JSC "UAT". At first, the deaerator was installed in design position at the platform of the auxiliary building by means of GROOVE crane. Lifting and installation of the deaerator in the building was executed by means of "Potain" tower crane with load capacity of 40 tons. The equipment weighing about 17 tons was lifted to the height of more than 20 metres and lowered to its regular place at the level of +8.000 through a special aperture in the roof of the building. The deaerator is a heat exchanger of mixed cycle. It is intended for technological process of mixing of chemically deionized water with boric concentrate. This water is used to feed the first circuit.

After installation to the regular place, the deaerator will fixed at the base plate, and then it will be connected to the technological pipelines of the system.


The Holding “Titan-2” is the largest in the North-West group of companies, erecting the most important objects of the nuclear industry and energy. The organization performs a full range of construction and installation works from engineering to commissioning.

The Holding “Titan-2” is one of the main contractors for the construction of power units No. 1 and No. 2 of the Leningradskaya NPP-2. Main organizations of the company perform 30% of general construction and 80% of installation works on the site. Specialists of the holding are engaged on the objects of the Leningradskaya NPP-2 first and second power units. The works are being performed in the buildings of the reactor, turbine, electricity, water, heating system and other structures of power units.