CNSn Series Horizontal Multistage Segmental - nempump.comnempump.com

CNSn Series Horizontal Multistage Segmental

ЦНСн 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 CNSn 500 model pumps can be equipped with an inducer to ensure NPSH required equal to 3 m. Made in compliance with Transneft’s General and Specific Engineering Requirements (OTT and STT resp.).

Nos Pump make Capacity, m3/h Head, m Rotational speed (synchr.), rpm

Motor nominal power, ​kW

1 CNSn 315-126 315 126 1500

200

2 CNSn 315-189 315 189 1500

250

3 CNSn 315-252 315 252 1500

315

4 CNSn 315-315 315 315 1500

400

5 CNSn 315-378 315 378 1500

450

6 CNSn 315-441 315 441 1500

630

7 CNSn 315-504 315 504 1500

630

8 CNSn 315-567 315 567 1500

800

9 CNSn 315-630 315 630 1500

800

10 CNSn 500-160 500 160 1500

400

11 CNSn 500-240 500 240 1500

630

12 CNSn 500-320 500 320 1500

800

13 CNSn 500-400 500 400 1500

1000

14 CNSn 500-480 500 480 1500

1000

15 CNSn 500-560 500 560 1500

1250

16 CNSn 500-640 500 640 1500

1600

17 CNSn 500-720 500 720 1500

1600

18 CNSn 500-800 500 800 1500

2000

19 CNSn 500-880 500 880 1500

2000

Design by "TriA"