ЦНС(н), HP Series

Designed for transporting crude oil and end products through long-distance, process and auxiliary pipelines.

Electrically driven horizontal multistage segmental centrifugal pumps, with all impellers facing the same way and automatic balancing of the rotor axial thrust by balance disc and balance disc seat. The suction nozzle horizontally sideward, the discharge nozzle vertically to the top. Radial forces and unbalanced axial thrust load of the pump rotor are taken up by the grease-lubricated antifriction bearings. Shaft sealing: by dual mechanical seals or single mechanical seals, each provided with an auxiliary (safety) seal on the atmosphere side. Cartridge type design of the mechanical seals allows their installation and removal as an assembly unit. Cyclone separators for cleaning liquid supplied to the mechanical seal chambers can be mounted on the pumps for their reliability improvement. For applications with low NPSH available existing at the installation, the ЦНС(н) 500 model pumps can be equipped with an inducer to ensure NPSH required equal to 3 m.

HP Series pumps are multistage centrifugal pumps of a new generation, designed to replace ЦНС and ЦНС(н) pumps. They provide interchangeability in terms of pumping technology and the size of the connection to the foundation and pipelines. Designed in accordance with the requirements of international industry standards; have improved efficiency and reliability.

Additional and technical information