NSC Single Stage Double Suction Split Case Pump



  • CNP Actively Participating in the 22nd Shandong International Water Exhibition

  • CNP Donated Medical Mask for Overseas Customers

  • ISO /TC 23/SC 18 SECRETARIAT visited CNP

  • CNP attended Aquatherm Moscow 2019

  • 2018 CNP overseas customers conference



The pump is divided into horizontal installation and vertical installation, the pump shell is horizontally separated from the axis, the upper part is the pump cover, the lower part is the pump body, the suction inlet and outlet are on the pump body below the pump axis, and the center line of the impeller is perpendicular to the axis. The seal of the pump can be sealed with packing or mechanical seal.

The middle opening pump at high temperature adopts the centerline support structure.

The general assembly of the bearing part is the grease lubrication bearing part, and the high lift pump and the high temperature hot water pump are the thin oil lubricated bearing part with water cooling jacket structure.

The seal forms of shaft seal are packing seal and mechanical seal.

Can adopt lubrication and shaft lubrication, the pump runs stably and the high efficiency area is wide.


The double suction pump enters water from both sides, and the pump has good cavitation performance, high efficiency and energy saving.

The utility model has the advantages of simple installation, convenient maintenance and compact structure.

During maintenance, there is no need to disassemble the inlet and outlet pipes, open the pump cover, and the rotor can be taken out for maintenance.






CNP, a green water expert beside you.

Technical data

Capacity            Q:50-20000 m3/h

Head                   H:10-230m

Suction Dia             DN:100-1400mm

Discharge Dia           DN:80-1200mm

Operating Pressure      P:≤5MPa

Operating Temperature   T: -15℃-+200℃( above80℃, pls contact CNP)

Abrasive medium concentration: ≤4%



Clean water or medium similar to water in Physical and chemical properties

Water supply /Drainage /Irrigation /Power station /Hydropower station /Fire-fighting /Air-conditioning /Building industry /Marine applications /All kinds of water for industrial process

Abrasive medium

Sand water /Oxide scale water /Others

Corrosive medium

Desalination /Bittern / Sea water /Others

High temperature medium

Heating network circulating water /All kinds of chemical liquid

Petroleum and chemical liquids(according to API610 BB1)

Crude oil and refined oil / Oil loading and unloading of oil terminal /All kinds of chemical liquid


CNP integrates the advanced R&D technologies from Europe and America, with the most advanced industrial design concept in Western Europe, with the production experience of modern industrial clusters in North America, with the most efficient and energy-saving product structure research in Hangzhou, China.

With the application of information technology, CNP has built its own smart factory, taking the lead in the introduction of SAP resource management system, becoming one of the key units of the key construction project of  "machine substitution" in Hangzhou, with the whole process of production information monitoring and tracking, applying laser welding technology to the manufacturing process of robot pump spare parts in depth, using progressive die technology to ensure the quality of the whole process of the parts, all of which greatly reduce the production and manufacturing cycle, provide an intelligent production and manufacturing basis for the pump production.

CNP was recognized as state-certified enterprise technology center in 2016. It is the highest evaluation level for technology center in China. Besides, CNP has been carrying some technical courses in 11/12/13th National Five-Year Plan.

CNP uses digital integrated intelligent control technology to create domestic advanced M2M mode, intelligent control technology.

It includes intelligent current stabilization system, intelligent vacuum suppression system, intelligent auxiliary control monitoring system, intelligent non-negative pressure full frequency control system and intelligent water hammer two-way elimination system.