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Grundfos CR 1s vertical multistage CR pump

GRUNDFOS CR 1s


  • Surface pumps: Grundfos CR

Head at Q=0 up to: 207 m · Official curve up to: 1.1 m³/h · 3 x 380-415 V · 50 Hz

The Grundfos CR 1s 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 1s-2

Head at Q=0: 12 m
P2: 0.37 kW

CR 1s-3

Head at Q=0: 18 m
P2: 0.37 kW

CR 1s-4

Head at Q=0: 24 m
P2: 0.37 kW

CR 1s-5

Head at Q=0: 30 m
P2: 0.37 kW

CR 1s-6

Head at Q=0: 36 m
P2: 0.37 kW

CR 1s-7

Head at Q=0: 42 m
P2: 0.37 kW

CR 1s-8

Head at Q=0: 48 m
P2: 0.37 kW

CR 1s-9

Head at Q=0: 54 m
P2: 0.37 kW

CR 1s-10

Head at Q=0: 60 m
P2: 0.37 kW

CR 1s-11

Head at Q=0: 65 m
P2: 0.37 kW

CR 1s-12

Head at Q=0: 71 m
P2: 0.37 kW

CR 1s-13

Head at Q=0: 77 m
P2: 0.37 kW

CR 1s-15

Head at Q=0: 88 m
P2: 0.55 kW

CR 1s-17

Head at Q=0: 100 m
P2: 0.55 kW

CR 1s-19

Head at Q=0: 111 m
P2: 0.55 kW

CR 1s-21

Head at Q=0: 123 m
P2: 0.75 kW

CR 1s-23

Head at Q=0: 135 m
P2: 0.75 kW

CR 1s-25

Head at Q=0: 144 m
P2: 0.75 kW

CR 1s-27

Head at Q=0: 158 m
P2: 1.1 kW

CR 1s-30

Head at Q=0: 175 m
P2: 1.1 kW

CR 1s-33

Head at Q=0: 194 m
P2: 1.1 kW

CR 1s-36

Head at Q=0: 207 m
P2: 1.1 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 1s official 2026 hydraulic curves

Official Grundfos CR 1s 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.


Open Grundfos Product Center →

References & article codes


Standard Grundfos CR 1s 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
93388657CR 1s-2120.371Oval flanges Rp 1
93391340CR 1s-2120.371Flanges DN25/DN32
93390533CR 1s-3180.371Oval flanges Rp 1
93391342CR 1s-3180.371Flanges DN25/DN32
93390535CR 1s-4240.371Oval flanges Rp 1
93391344CR 1s-4240.371Flanges DN25/DN32
93390768CR 1s-5300.371Oval flanges Rp 1
93391347CR 1s-5300.371Flanges DN25/DN32
93390795CR 1s-6360.371Oval flanges Rp 1
93391351CR 1s-6360.371Flanges DN25/DN32
93390810CR 1s-7420.371Oval flanges Rp 1
93391353CR 1s-7420.371Flanges DN25/DN32
93390819CR 1s-8480.371Oval flanges Rp 1
93391355CR 1s-8480.371Flanges DN25/DN32
93390846CR 1s-9540.371Oval flanges Rp 1
93391357CR 1s-9540.371Flanges DN25/DN32
93390860CR 1s-10600.371Oval flanges Rp 1
93391359CR 1s-10600.371Flanges DN25/DN32
93390864CR 1s-11650.371Oval flanges Rp 1
93391362CR 1s-11650.371Flanges DN25/DN32
93390869CR 1s-12710.371Oval flanges Rp 1
93391365CR 1s-12710.371Flanges DN25/DN32
93390874CR 1s-13770.371Oval flanges Rp 1
93391367CR 1s-13770.371Flanges DN25/DN32
93390878CR 1s-15880.551.3Oval flanges Rp 1
93391369CR 1s-15880.551.3Flanges DN25/DN32
93390892CR 1s-171000.551.3Oval flanges Rp 1
93391371CR 1s-171000.551.3Flanges DN25/DN32
93390896CR 1s-191110.551.3Oval flanges Rp 1
93391376CR 1s-191110.551.3Flanges DN25/DN32
93388639CR 1s-211230.751.7Oval flanges Rp 1
93396922CR 1s-211230.751.7Flanges DN25/DN32
93390912CR 1s-231350.751.7Oval flanges Rp 1
93396923CR 1s-231350.751.7Flanges DN25/DN32
93390915CR 1s-251440.751.7Oval flanges Rp 1
93396925CR 1s-251440.751.7Flanges DN25/DN32
93397396CR 1s-271581.12.4Oval flanges Rp 1
93396926CR 1s-271581.12.4Flanges DN25/DN32
93396927CR 1s-301751.12.4Flanges DN25/DN32
93396928CR 1s-331941.12.4Flanges DN25/DN32
93396929CR 1s-362071.12.4Flanges DN25/DN32

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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