Rosatom completes production of steam generators for Kudankulam plant

Atomenergomash, machine building division of Rosatom State Atomic Energy Corporation has completed the production of Steam Generators set for the Unit No 4 of Kudankulam Nuclear Power Plant (NPP) in India.

A Steam Generator belongs to the items of safety class 1. The Steam Generator Vessel is a horizontal cylindrical vessel with two elliptical bottoms, in the middle part of which there are collectors for the supply and discharge of hot coolant. The diameter is more than 4 m; the length of the equipment is about 15 m. The weight of one steam generator is 340 tons. Three heat-exchange items were shipped to the NPP under construction in 2019, the fourth item will be shipped to the customer construction site in April 2020 when the navigation season is open.

Production cycle of Steam Generator PGV-1000M manufacture takes more than two years from the start of metallurgical blanks production to the shipment. To produce one item, it is required to use 340 kg of welding strip, 5.5 tons of the welding electrodes and 8 tons of welding wire. 11 thousand of heat-exchange tubes with total length of approximately 130 kilometres are welded inside the Steam Generator. Total length of the welds is more than one kilometre.

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