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Atommash successfully performed the hydraulic tests of the reactor pressure vessel for Unit 1 of the Akkuyu NPP (Turkey)

Atommash successfully performed the hydraulic tests of the reactor pressure vessel for Unit 1 of the Akkuyu NPP (Turkey)

Moscow, July 13 - Neftegaz.RU. Atommash (part of the Rosatom Engineering Division - Atomenergomash) successfully completed the hydraulic tests of the 1st reactor for the 1st power unit of the Akkuyu NPP under construction in Turkey.

To carry out the final stage in the manufacturing process of the reactor pressure vessel, a special underground test bench is used - a caisson. A support ring was placed in it, on which, using a crane with a lifting capacity of 600 tons, the reactor pressure vessel was installed in the design position and closed with a process cover.

Hydraulic tests were carried out in accordance with a special technology, during which a maximum pressure (24.5 MPa) was generated in the reactor pressure vessel 1.4 times higher than the operating pressure.

According to the Director of the Volgodonsk branch of AEM-technology Rovshan Abbasov, preparation for hydrotests of the reactor pressure vessel was carried out in difficult quarantine conditions. Despite this, Atommash specialists ensured accurate and high-quality execution of all necessary operations.

“Hydraulic tests have confirmed the strength of the base metal and welded joints of the reactor pressure vessel, the readiness of the item for operation at the power plant for a specified life of 60 years,” Abbasov emphasized.

The reactor is a vertical cylindrical 334 tons-weight vessel with an elliptical bottom, inside of which the reactor core and internals are arranged. From above, the reactor is tightly sealed by a cover with the drives of mechanisms and control elements designed to regulate and protect the reactors and nozzles for outputting the cables of the sensors for on-site monitoring installed on it.