MH

HIGH HEAD DEWATERING PUMP

MH-series submersible pumps with a strong construction are designed to withstand the high pressure during deep well dewatering. Motor and pump casing is made of rigid cast iron for long-lasting durability.

Maximum submersion depth is greatly increased due to special mechanical seal resistant to high pressure.

Motor is cooled by the pumped water for safe operation even in case the pump is operated continuously in semisubmerged condition. Space saving design due to a top outlet.

Technical Specifications

  • Capacity: up to 408 m³/h
  • Head: up to 140 meters
  • Power: 22 kW to 110 kW
  • Power supply: three phase 400V±10%, 50Hz
  • Insulation class: F/H
  • Protection class: IP68
  • Cable length: 20 m
  • Water temperature: up to 40°C
  • Max. water depth: 30 m

Application

  • Mining and industrial sites
  • Construction sites
  • Deep-well and high-head dewatering
  • Drainage of contaminated water
  • General pumping purposes

Optional Features

  • Other voltages
  • Other length of cable

Performance Curves

Performance Range

Model (50Hz) Outlet Motor power Rated current Rated capacity Rated head Max capacity Max head Impeller passage
mm kW HP A m³/h m³/min m m³/h m³/min m mm
100MH22 100 22 30 41.5 66 1.1 60 130 2.17 68 6
100MH30 100 30 40 54 72 1.2 70 170 2.83 78 6
150MH22 150 22 30 41.5 120 2.0 37 200 3.33 50 15
150MH30 150 30 40 54 140 2.33 45 220 3.67 58 15
150MH37 150 37 50 66 120 2.0 65 220 3.67 83 6
150MH45 150 45 60 80 120 2.0 75 220 3.67 90 6
200MH37 200 37 50 66 216 3.6 35 330 5.5 48 20
200MH45 200 45 60 80 270 4.5 35 372 6.2 53 20
150MH55 150 55 75 100 90 1.5 90 180 3.0 102 8
150MH75 150 75 100 134 90 1.5 120 180 3.0 132 8
200MH55 200 55 75 100 240 4.0 50 390 6.5 65 20
200MH75 200 75 100 134 270 4.5 60 408 6.8 70 20
150MH90 150 90 120 162 120 2.0 128 180 3.0 140 10
200MH90 200 90 120 162 270 4.5 70 360 6.0 90 20
200MH110 200 110 150 198 270 4.5 90 360 6.5 107 20
* Starting method: D.O.L. (11kW) or Star-Delta (>22kW)

Dimensions and Weight

Model (50Hz) A B C n-Ød D H H1 W1 N.W. G.W. Packing dimension
mm mm mm mm mm mm mm mm kg kg mm
100MH22 100 180 220 8-Ø18 420 1374 1072 240 370 410 1495×490×705
100MH30 100 180 220 8-Ø18 420 1374 1072 240 375 415 1495×490×705
150MH22 150 240 285 8-Ø22 420 1434 1082 250 385 425 1565×490×705
150MH30 150 240 285 8-Ø22 420 1434 1082 250 390 430 1565×490×705
150MH37 150 240 285 8-Ø22 530 1424 1072 180 570 615 1605×600×860
150MH45 150 240 285 8-Ø22 530 1424 1072 180 575 620 1605×600×860
200MH37 200 295 340 12-Ø22 530 1474 1072 180 575 625 1605×600×860
200MH45 200 295 340 12-Ø22 530 1474 1072 180 580 630 1605×600×860
150MH55 150 240 285 8-Ø22 550 1630 1280 200 840 890 1815×620×920
150MH75 150 240 285 8-Ø22 550 1630 1280 200 888 938 1815×620×920
200MH55 200 295 340 12-Ø22 550 1680 1280 200 850 900 1815×620×920
200MH75 200 295 340 12-Ø22 550 1680 1280 200 898 948 1815×620×920
150MH90 150 250 300 8-Ø26 592 1687 1282 200 1110 1166 1825×665×965
200MH90 200 295 340 12-Ø22 592 1687 1282 200 1120 1176 1825×665×965
200MH110 200 295 340 12-Ø22 592 1687 1282 200 1150 1206 1825×665×965

Part name Material
Discharge connection Ductile iron
Terminal box Cast iron
Upper cover Cast iron
Bearing house Cast iron
Seal bracket Cast iron
Seal bracket Cast iron
Motor body Cast iron
Outer casing Steel
Impeller High chrome alloy
Diffuser Ductile iron
Inlet plate Ductile iron
Inlet plate Cast iron
Neck ring High chrome alloy
Strainer AISI201SS
Stator
Rotor Shaft: AISI420SS
Bearing
Bearing
Mechanical seal Tc-Sic/Sic-Sic
Oil seal
Shim Cast iron
Cable

Overheat protector

Oil water leakage probe: 55~150kW (22~45kW: on option)