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Grundfos CR 20 vertical multistage CR pump

GRUNDFOS CR 20


  • Surface pumps: Grundfos CR

Head at Q=0 up to: 253 m · Official curve up to: 28 m³/h · 3 x 380-415 V · 50 Hz

The Grundfos CR 20 is a vertical multistage centrifugal pump with in-line suction and discharge ports. The pump head and base are cast iron; the other wetted hydraulic components are AISI 304 stainless steel. Standard HQQE mechanical seal.


CR 20-1

Head at Q=0: 14 m
P2: 1.1 kW

CR 20-2

Head at Q=0: 29 m
P2: 2.2 kW

CR 20-3

Head at Q=0: 44 m
P2: 4 kW

CR 20-4

Head at Q=0: 59 m
P2: 5.5 kW

CR 20-5

Head at Q=0: 74 m
P2: 5.5 kW

CR 20-6

Head at Q=0: 89 m
P2: 7.5 kW

CR 20-7

Head at Q=0: 104 m
P2: 7.5 kW

CR 20-8

Head at Q=0: 119 m
P2: 11 kW

CR 20-10

Head at Q=0: 149 m
P2: 11 kW

CR 20-12

Head at Q=0: 179 m
P2: 15 kW

CR 20-14

Head at Q=0: 208 m
P2: 15 kW

CR 20-17

Head at Q=0: 253 m
P2: 18.5 kW

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This selection covers only standard Grundfos CR pumps in three-phase 380-415 V, 50 Hz. CRI, CRN, single-phase, HQQV and other variants are excluded.

The numeric head values are read at Q=0 from the official 2026 Grundfos vector curves and rounded to the nearest metre. They support comparison and preselection.

Use Grundfos Product Center or the product datasheet for contractual duty-point sizing. No prices are published on this page.

Grundfos CR 20 official 2026 hydraulic curves

Official Grundfos CR 20 hydraulic curves from the 2026 catalogue, ISO 9906:2012 Grade 3B. Numeric table values correspond to the Q=0 curve intercept, rounded to the nearest metre.


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References & article codes

Standard Grundfos CR 20 references: AISI 304 hydraulics, HQQE seal, three-phase 380-415 V, 50 Hz. Both official connection variants are retained when listed. No prices are published.

Article codeDesignationHead at Q=0 [m]P2 [kW]In [A]Connection
93388697CR 20-1141.12.4Oval flanges Rp 2
93388757CR 20-1141.12.4Flanges DN50
93388698CR 20-2292.24.5Oval flanges Rp 2
93388758CR 20-2292.24.5Flanges DN50
93389249CR 20-34447.5Oval flanges Rp 2
93389303CR 20-34447.5Flanges DN50
93389250CR 20-4595.511Oval flanges Rp 2
93389304CR 20-4595.511Flanges DN50
93389251CR 20-5745.511Oval flanges Rp 2
93389305CR 20-5745.511Flanges DN50
93389252CR 20-6897.514.4Oval flanges Rp 2
93389306CR 20-6897.514.4Flanges DN50
93389253CR 20-71047.514.4Oval flanges Rp 2
93389307CR 20-71047.514.4Flanges DN50
93389308CR 20-81191120.8Flanges DN50
93389309CR 20-101491120.8Flanges DN50
93389310CR 20-121791528.5Flanges DN50
93389311CR 20-142081528.5Flanges DN50
93389312CR 20-1725318.537Flanges DN50

Grundfos CR · 380-415 V · 50 Hz

Scope: CR only, standard AISI 304 hydraulics, HQQE seal, three-phase 380-415 V, 50 Hz. Every family page includes official 2026 curves, numeric Q=0 head values and catalogue article codes. No prices are shown.

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