Shut-off ball valves with nominal diameter DN 10-1200 mm, nominal pressure PN 0.6-50.0 MPa, collapsible and all-welded. They meet the technical requirements of Rosneft Oil Company. They are intended for installation as shut-off devices on process pipelines and process equipment of oil and gas processing, oil production, petrochemical, gas industries; steam and hot water pipelines, in heat networks; in gas supply and fire-fighting systems.
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