LH-W | 3-phase / 50Hz

Three-phase drainage pumps equipped with dual impellers capable of very high heads. Cast iron construction gives exceptional performance in harsh operating conditions. With this design the base is small, which enables good positioning in confined spaces.

Technical Data

  • Discharge bore mm: 2" BSPT,100 (mm),80 (mm),3" BSPT
  • Head max. m: 18,0 - 216,0
  • Capacity max. l/min: 490 - 2000
  • Motor output kW: 3,0 - 110,0
  • Phases: 3
  • Max. solid handling ø mm: 6 - 8,5
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
LH23.0W 2" BSPT 3 3,0 39,0 600 6
LH33.0 3" BSPT 3 3,0 18,0 1000 6
LH25.5W 2" BSPT 3 5,5 65,0 490 6
LH311W 3" BSPT 3 11,0 81,0 700 8,5
LH322W 80 (mm) 3 22,0 102,0 940 8,5
LH430W 100 (mm) 3 30,0 123,0 940 8,5
LH4110W 100 (mm) 3 110,0 216,0 2000 8,0

Discharge bore mm 2" BSPT
Phases 3
Motor output kW 3,0
Head max. m 39,0
Capacity max. l/min 600
Max. solid handling ø mm 6

Discharge bore mm 3" BSPT
Phases 3
Motor output kW 3,0
Head max. m 18,0
Capacity max. l/min 1000
Max. solid handling ø mm 6

Discharge bore mm 2" BSPT
Phases 3
Motor output kW 5,5
Head max. m 65,0
Capacity max. l/min 490
Max. solid handling ø mm 6

Discharge bore mm 3" BSPT
Phases 3
Motor output kW 11,0
Head max. m 81,0
Capacity max. l/min 700
Max. solid handling ø mm 8,5

Discharge bore mm 80 (mm)
Phases 3
Motor output kW 22,0
Head max. m 102,0
Capacity max. l/min 940
Max. solid handling ø mm 8,5

Discharge bore mm 100 (mm)
Phases 3
Motor output kW 30,0
Head max. m 123,0
Capacity max. l/min 940
Max. solid handling ø mm 8,5

Discharge bore mm 100 (mm)
Phases 3
Motor output kW 110,0
Head max. m 216,0
Capacity max. l/min 2000
Max. solid handling ø mm 8,0
General
ø Discharge bore mm 50, 80, 100
Discharge Connection Threaded flange, JIS 20K Flange
Pump
Components
Impeller Closed type impeller
Shaft Seal Double mechanical seal
Bearings Shielded ball bearings
Material
Impeller Chromium iron casting
Shaft Seal Silicon carbide in oil bath
Casing Ductile iron casting EN-GJS-450-10, Grey iron casting EN-GJL-200
Pumping Fluid
Type of Fluid Spring water, Rain water, Ground water, Sand carrying water
Temperature 0-40°C
Motor
Type, Poles Induction motor, 2 poles, IP68
Insulation Insulation class F, Insulation class B
Phase / Voltage 3-phase / 400V / 50Hz / d.o.l., 3-phase / 400V / 50Hz / s.d.
Motor Protector (built-in) Circle thermal cut-out, Miniature protector
Lubrication Turbine oil (ISO VG32)
Material
Casing Grey iron casting EN-GJL-200
Shaft Stainless steel EN-X30Cr13
Cable Rubber, NSSHÖU
Dimensions in mm:
W1: lowest running water level
  • LH23.0W
  • LH33.0
  • LH25.5W
  • LH311W
  • LH322W
  • LH430W
  • LH4110W
ModelBDD1W1d
LH23.0W591185-15050
LH33.0591185-15080
LH25.5W750240-17050
LH311W1030270-20080
LH322W1234330-30080
LH430W1375330-300100
LH4110W1825616592380100

The LH-W-series is a three-phase cast iron extra high head drainage pump having dual impellers. Installations in narrow spaces like deep wells are no problem thanks to its slim design. The center flange construction assures a stable installation even if it is fixed by the discharge pipe.*1 The top discharge, flow-thru design provides maximum motor cooling efficiency allowing continuous operation at low water levels and extended dry-run capability. The pump incorporates seal pressure relief ports that prevent the pumping pressure from applying to the shaft seal.*2

*1 excluding LH4110W

*2 excluding LH23.0W

Case studies

Germany

Steel recycling

Ash from the recycling process is stored on the premises of a steel recycling company. Recycled water is used to cool the ash. This drainage water must be sprayed in large quantities onto the hot ash via a sprinkler system. The sprinkler system itself operates at a system pressure of 3 to 4 bar.

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