KRS | 3-phase / 50Hz

A range of high volume heavy duty drainage pumps constructed in cast iron. Equipped with 4 pole three phase motors offering great solids handling & durability for most demanding applications.

Technical Data

  • Discharge bore mm: 4" BSPT,250,200,6" BSPT
  • Head max. m: 8,0 - 34,8
  • Capacity max. l/min: 1820 - 12000
  • Motor output kW: 3,0 - 22,0
  • Phases: 3
  • Max. solid handling ø mm: 12 - 30
Performance curve
Kurve_U.jpg Kurve_U.jpg
Specifications

Model Colour code curve Discharge bore mm Phases Motor output kW Head max. m Capacity max. l/min Max. solid handling ø mm
KRS-43 4" BSPT 3 3,0 14,8 1820 12
KRS-63 6" BSPT 3 3,0 8,0 3250 15
KRS-65.5 6" BSPT 3 5,5 17,0 3180 20
KRS-85.5 200 3 5,5 10,0 4850 20
KRS2-69 6" BSPT 3 9,0 21,0 4250 20
KRS2-89 200 3 9,0 15,0 5300 30
KRS815 200 3 15,0 21,5 6400 25
KRS822 200 3 22,0 34,8 5300 25
KRS822L 200 3 22,0 26,0 5900 25
KRS1022 250 3 22,0 12,1 12000 25

Discharge bore mm 4" BSPT
Phases 3
Motor output kW 3,0
Head max. m 14,8
Capacity max. l/min 1820
Max. solid handling ø mm 12

Discharge bore mm 6" BSPT
Phases 3
Motor output kW 3,0
Head max. m 8,0
Capacity max. l/min 3250
Max. solid handling ø mm 15

Discharge bore mm 6" BSPT
Phases 3
Motor output kW 5,5
Head max. m 17,0
Capacity max. l/min 3180
Max. solid handling ø mm 20

Discharge bore mm 200
Phases 3
Motor output kW 5,5
Head max. m 10,0
Capacity max. l/min 4850
Max. solid handling ø mm 20

Discharge bore mm 6" BSPT
Phases 3
Motor output kW 9,0
Head max. m 21,0
Capacity max. l/min 4250
Max. solid handling ø mm 20

Discharge bore mm 200
Phases 3
Motor output kW 9,0
Head max. m 15,0
Capacity max. l/min 5300
Max. solid handling ø mm 30

Discharge bore mm 200
Phases 3
Motor output kW 15,0
Head max. m 21,5
Capacity max. l/min 6400
Max. solid handling ø mm 25

Discharge bore mm 200
Phases 3
Motor output kW 22,0
Head max. m 34,8
Capacity max. l/min 5300
Max. solid handling ø mm 25

Discharge bore mm 200
Phases 3
Motor output kW 22,0
Head max. m 26,0
Capacity max. l/min 5900
Max. solid handling ø mm 25

Discharge bore mm 250
Phases 3
Motor output kW 22,0
Head max. m 12,1
Capacity max. l/min 12000
Max. solid handling ø mm 25
General
ø Discharge bore mm 100, 150, 200, 250
Discharge Connection Threaded flange, Hose coupling
Pump
Components
Impeller Semi-open type impeller, Closed type impeller
Shaft Seal Double mechanical seal
Bearings Shielded ball bearings
Material
Impeller Ductile iron casting EN-GJS-700-2
Casing Grey iron casting EN-GJL-200
Suction Plate Grey iron casting EN-GJL-200
Shaft Seal Silicon carbide in oil bath
Pumping Fluid
Type of Fluid Spring water, Rain water, Ground water, Sand carrying water
Temperature 0-40°C
Motor
Type, Poles Induction motor, 4 poles, IP68
Insulation Insulation class E, Insulation class F, Insulation class B
Phase / Voltage 3-phase / 400V / 50Hz / d.o.l.
Motor Protector (built-in) Circle thermal cut-out
Lubrication Turbine oil (ISO VG32)
Material
Casing Grey iron casting EN-GJL-150, Grey iron casting EN-GJL-200
Shaft Stainless steel EN-X30Cr13
Cable Rubber, NSSHÖU
Dimensions in mm:
W1: lowest running water level
  • KRS-43
  • KRS-63
  • KRS-65.5
  • KRS-85.5
  • KRS2-69
  • KRS2-89
  • KRS815
  • KRS822
  • KRS822L
W1: lowest running water level
  • KRS1022
ModelAA1BB1DHW1
KRS-43378288723586347651170
KRS-63385295867686365777300
KRS-65.5423303790608369698190
KRS-85.5445325942710413800295
KRS2-69487371812630424743200
KRS2-89470354933701403814300
KRS8154813471069837440949275
KRS822572445123810065301156345
KRS822L572445123810065301156345
KRS102252526014191156--450

The KRS-series is a submersible three-phase cast iron high volume heavy-duty drainage pump driven by a 4-pole motor. The cast iron body, combined with the low speed motor, presents extra durability for use in the most demanding conditions. The top discharge, side flow design assures efficient motor cooling even when it operates with its motor exposed to air.* Model KRS1022 is a top discharge, flow-thru design. The top discharge, flow-thru design provides maximum motor cooling efficiency allowing continuous operation at low water levels and extended dry-run capability.

Case studies

France

Clean-up at old factory

Tsurumi was contacted by SUEZ company to support with the decontamination of the soils of the former FORD site in Bordeaax, where they manufactured gearboxes for trucks and cars. The grounds were heavily polluted with oil and hydrocarbons that mixed with water and sand. Furthermore, there were limitations to the piping available, hence pumps had to be selected carefully. However, the biggest challenge was that every cleaning cycle, once started, had to finish as a malfunction would cause additional work.

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Germany

Water Relocation at a Stone Quarry

A stone quarry in Germany faced the task of relocating water, essential to its operations, from an intermediate sump to the ultimate discharge point. Overcoming approximately 400 meters, the quarry employed a Tsurumi KRS 65.5 booster pump, delivering an effective solution to the customer's needs. Tsurumi's cutting-edge design enables their pumps to excel even when not submerged, enhancing their versatility and enabling uninterrupted operation in challenging applications.

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