Objectives
The present TACIS project U1.01/96C aims at providing spare parts for valves for unit 3 pressuriser and pressure accumulators, which were originally supplied by German companies Sempell and Bopp & Reuther.
Background
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Objectives
The present TACIS project U1.01/96C aims at providing spare parts for valves for unit 3 pressuriser and pressure accumulators, which were originally supplied by German companies Sempell and Bopp & Reuther.
Background
Project Description
After the "Stuck-open of the pressurizer safety valve" incident that occurred in Zaporozhye in 1995, the maintenance work was incriminated and led to a modification of the geometry of valve seat and disk.
Objectives
In the framework of the “Tacis Nuclear Safety Programme”, it was decided to increase the nuclear safety of the units 1 through 6 at the Zaporozhye NPP by improving the protection of the primary circuit from overpressure under normal and emergency modes.