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SINES - Grundfos CRN 45 - vertical multistage stainless steel surface pump


GRUNDFOS CRN 45


  • Category: Surface pumps

Max. TDH: 330 m - Max. flow rate: 58 m³/h - vertical multistage in-line

The CRN 45 is the all-stainless-steel EN 1.4401 (AISI 316) version of the CR 45, designed for aggressive liquids, process water and water treatment. Three-phase IE3 motor from 3 to 45 kW. 25 stage variants. Flange connection DN 80.


CRN 45-1-1

3 kW

 CRN 45-1

4 kW

 CRN 45-2-2

5.5 kW
CRN 45-2

7.5 kW

 CRN 45-3-2

11 kW

 CRN 45-3

11 kW
CRN 45-4-2

15 kW

 CRN 45-4

15 kW

 CRN 45-5-2

18.5 kW
CRN 45-5

18.5 kW

 CRN 45-6-2

22 kW

 CRN 45-6

22 kW
CRN 45-7-2

30 kW

 CRN 45-7

30 kW

 CRN 45-8-2

30 kW
CRN 45-8

30 kW

 CRN 45-9-2

30 kW

 CRN 45-9

37 kW
CRN 45-10-2

37 kW

 CRN 45-10

37 kW

 CRN 45-11-2

45 kW
CRN 45-11

45 kW

 CRN 45-12-2

45 kW

 CRN 45-12

45 kW
CRN 45-13-2

45 kW

    
Official Grundfos distributor, B2B export worldwide

The Grundfos CRN is the all-stainless-steel version of the CR vertical multistage in-line centrifugal pumps: suction and discharge ports are on the same level for a compact footprint. The CRN 45 covers flow rates up to 58 m³/h (nominal 45 m³/h) and head up to 330 m, with a maximum efficiency of 79%.

All-stainless-steel construction: all parts in contact with the liquid are made of EN 1.4401 (AISI 316) stainless steel, the right choice for aggressive and industrial liquids (acids, alkalis, reverse osmosis, demineralisation, separators). Balanced cartridge mechanical seal, maintenance-free. Liquid temperature -30 to +120 °C, maximum operating pressure 33 bar.

High-efficiency three-phase IE3 motor, from 3 to 45 kW (Grundfos MG up to 22 kW, Siemens above). CRNE versions with integrated MGE frequency converter available on request, for constant pressure and energy savings.

Applications: water boosting and distribution, industrial process water, washing plants, boiler feed, cooling and air conditioning, irrigation, water treatment (ultra-filtration, reverse osmosis). Flange connection DN 80. 25 stage variants available (see table above) to match the operating point precisely.

Official Grundfos distributor, SINES Export is a wholesaler and exporter specialised in Grundfos pumps for B2B customers worldwide. Our teams support installers, resellers and distributors for export to Africa, the Middle East and beyond.


SINES - Grundfos CRN - how to read the type designation

SINES - Grundfos CRN 45 - performance curves 50 Hz

Performance curves of the CRN 45, 50 Hz, 2900 rpm, ISO 9906:1999 annex A (source: Grundfos technical booklet). Maximum TDH: 330 m, maximum flow rate: 58 m³/h.



SINES - Grundfos CR, CRI, CRN - range performance ranges (50 Hz)

Performance ranges of the Grundfos CR, CRI, CRN vertical multistage pump range - 50 Hz - Source: https://www.grundfos.com/




References & article codes

Grundfos CRN 45 range, three-phase vertical multistage pumps 380-415 V, 50 Hz, all-stainless-steel AISI 316, HQQE mechanical seal. Viton seal (HQQV) and other variants on request. Price and availability on request.

Article code Designation P2 [kW] In [A] Connection
93392886CRN 45-1-136Flanges DN80
93392887CRN 45-147.5Flanges DN80
93392889CRN 45-2-25.511Flanges DN80
93392890CRN 45-2, motor 3 x 380-400 V7.514.4Flanges DN80
96536421CRN 45-2, motor 3 x 380-415 V7.514.2Flanges DN80
93392892CRN 45-31120.8Flanges DN80
93392891CRN 45-3-21120.8Flanges DN80
93392894CRN 45-41528.5Flanges DN80
93392893CRN 45-4-21528.5Flanges DN80
93392897CRN 45-518.537Flanges DN80
93392895CRN 45-5-218.537Flanges DN80
93436184CRN 45-62238Flanges DN80
93436182CRN 45-6-22238Flanges DN80
93435217CRN 45-73051Flanges DN80
93435216CRN 45-7-23051Flanges DN80
93435230CRN 45-83051Flanges DN80
93435218CRN 45-8-23051Flanges DN80
93435231CRN 45-9-23051Flanges DN80
93435233CRN 45-93763Flanges DN80
93435235CRN 45-103763Flanges DN80
93435234CRN 45-10-23763Flanges DN80
93435238CRN 45-114577Flanges DN80
93435237CRN 45-11-24577Flanges DN80
93435241CRN 45-124577Flanges DN80
93435240CRN 45-12-24577Flanges DN80
93435243CRN 45-13-24577Flanges DN80

For detailed datasheets, dimensions and a customised pump selection, consult the Grundfos Product Center.


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