LH-W | 3-phase / 50Hz

LH-W | 3-phase / 50Hz
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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

  • ø Discharge bore mm: 50 - 100
  • Type of Fluid: Drainage
  • Max. Solid Handling mm: 6 - 8.50
  • Max. dry matter %: 3-5
  • Max. PH Value: 5-9
  • Max. Capacity l/min: 490 - 2000
  • Max. Head m: 39 - 216
  • Motor output kW: 3,0 - 110,0
  • Phase / Voltage: 3-phase / 400V / 50Hz
Performance curve
1 O
2 O
Specifications

Model Colour code curve ø Discharge bore mm Type of Fluid Max. Solid Handling mm Max. dry matter % Max. PH Value Max. Capacity l/min Max. Head m Motor output kW Phase / Voltage
LH23.0W
1
50 Drainage 6 3-5 5-9 600 39 3,0 3-phase / 400V / 50Hz
LH25.5W
2
50 Drainage 6 3-5 5-9 490 65 5,5 3-phase / 400V / 50Hz
LH311W
3
80 Drainage 8.50 3-5 5-9 700 81 11,0 3-phase / 400V / 50Hz
LH322W
4
80 Drainage 8.50 3-5 5-9 940 102 22,0 3-phase / 400V / 50Hz
LH430W
5
100 Drainage 8.50 3-5 5-9 1230 123 30,0 3-phase / 400V / 50Hz
LH4110W
6
100 Drainage 8 3-5 5-9 2000 216 110,0 3-phase / 400V / 50Hz

ø Discharge bore mm 50
Type of Fluid Drainage
Max. Solid Handling mm 6
Max. dry matter % 3-5
Max. PH Value 5-9
Max. Capacity l/min 600
Max. Head m 39
Motor output kW 3,0
Phase / Voltage 3-phase / 400V / 50Hz

ø Discharge bore mm 50
Type of Fluid Drainage
Max. Solid Handling mm 6
Max. dry matter % 3-5
Max. PH Value 5-9
Max. Capacity l/min 490
Max. Head m 65
Motor output kW 5,5
Phase / Voltage 3-phase / 400V / 50Hz

ø Discharge bore mm 80
Type of Fluid Drainage
Max. Solid Handling mm 8.50
Max. dry matter % 3-5
Max. PH Value 5-9
Max. Capacity l/min 700
Max. Head m 81
Motor output kW 11,0
Phase / Voltage 3-phase / 400V / 50Hz

ø Discharge bore mm 80
Type of Fluid Drainage
Max. Solid Handling mm 8.50
Max. dry matter % 3-5
Max. PH Value 5-9
Max. Capacity l/min 940
Max. Head m 102
Motor output kW 22,0
Phase / Voltage 3-phase / 400V / 50Hz

ø Discharge bore mm 100
Type of Fluid Drainage
Max. Solid Handling mm 8.50
Max. dry matter % 3-5
Max. PH Value 5-9
Max. Capacity l/min 1230
Max. Head m 123
Motor output kW 30,0
Phase / Voltage 3-phase / 400V / 50Hz

ø Discharge bore mm 100
Type of Fluid Drainage
Max. Solid Handling mm 8
Max. dry matter % 3-5
Max. PH Value 5-9
Max. Capacity l/min 2000
Max. Head m 216
Motor output kW 110,0
Phase / Voltage 3-phase / 400V / 50Hz
General
ø Discharge bore mm 50 - 100
Discharge Connection JIS 20K Flange, Threaded flange
Pumping Fluid
Type of Fluid Drainage
Temperature 0-40°C
Max. Solid Handling mm 6 - 8.50
Max. dry matter % 3-5
Max. PH Value 5-9
Max. Capacity l/min 490 - 2000
Max. Head m 39 - 216
Pump
Components
Impeller Closed type impeller
Bearings Shielded ball bearings
Mechanical Seal Dual mechancial seal in oil bath
Material
Impeller Chromium iron casting
Casing Ductile iron casting EN-GJS-450-10, Grey iron casting EN-GJL-200
Pump Body Steel , Structured Steel, Carbon Steel
Mechanical Seal Silicon Carbide
Motor
Motor output kW 3,0 - 110,0
Starting method direct online , star/delta
Type, Poles Induction motor, 2 poles, IP68
Insulation Insulation class B, Insulation class F
Phase / Voltage 3-phase / 400V / 50Hz
r.p.m. 2820 - 2965
Motor Protector (built-in) Circle thermal cut-out, Miniature protector
Rated Current 6.50 - 209
Material
Frame Grey iron casting EN-GJL-200
Shaft Stainless steel EN-X30Cr13
Cable NSSHÖU 4C*1.5mm², NSSHÖU 4C*2.5mm², NSSHÖU 4C*4.0mm², NSSHÖU 4C*10mm², NSSHÖU 7C*35mm²/2C*2.5mm², NSSHÖU(3C*35mm²,3*16mm²/3E,2*2,5ST);NSSHÖU (3C*35mm², 3*16mm²/3E)
Cable Length 20m
Others
Dry Weight Kg 46 - 1270
Pressure Resistance max. 50m
Dimensions in mm:
W1: lowest running water level
  • LH23.0W
  • LH25.5W
  • LH311W
  • LH322W
  • LH430W
  • LH4110W
ModelBDD1W1d
LH23.0W591185-15050
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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