The valves are designed to be installed as regulating devices on pressure pipelines of main circulation pumps of the multiple forced circulation circuit (MCC) of nuclear power plants (NPPs) with RBMK-type reactors in order to limit pump capacity during start-up or shutdown of the plant. Class and group of valves 1A, supplied domestically and for export. The valves are resistant to seismic effects, category of seismic resistance I according to NP-031-01.
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