Designed for pumping of water into oil formations to maintain formation pressure. Pumps can be used for pumping of pure and slightly dirty water.

Application: oil industry, oil refining and petrochemical industry.

Design features:
• centrifugal horizontal multistage pumps. Number of stages depends on required head at constant capacity;
• end shaft seal with friction pair made of siliconized graphite or gland seal made of wear-resistant material "Graphlex";
• friction bearings with oil lubrication serves as rotor support;
• pumps of series 3 are manufactured with built-in friction bearings operated on pumping medium;
• pumps are made of corrosion-resistant material;
• axial load is taken by thrust control valve made of hard alloy metals;
• actuation is carried out from electric motor through flexible plate coupling;
• pumps are equipped with automatic devices ensuring their reliable operation.

Notes: Pump inner flowing part is made of steel 20H13, modification M - of steel 12H18N12M3T.
Pumps CNS 180 are completed with end seals - T or gland seal - S, bed plate for synchronous motor (S), asynchronous (A).