MH Extra

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.

All pumps of this series are equipped with double impellers for extra high head performance.

Technical Specifications

  • Capacity: up to 192 m³/h
  • Head: up to 200 meters
  • Power: 3.0 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 Starting method 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
50MH3 50 3.0 4.0 D.O.L. 6.2 18 0.3 26 30 0.5 39 6
50MH5.5 50 5.5 7.5 D.O.L. 11.4 18 0.3 48 35 0.59 65 6
80MH11 80 11 15 D.O.L. 22 30 0.5 60 60 1.0 78 8.5
80MH22 80 22 30 Star-Delta 41.5 40 0.67 80 78 1.30 110 8.5
100MH37 100 37 50 Star-Delta 66 60 1.0 105 112 1.87 130 6
150MH110 150 110 150 Star-Delta 198 120 2.0 150 192 3.2 200 8

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
50MH3 50 - - - 185 685 570 146 52 57 740х220x295
50MH5.5 50 125 165 4-Ø18 243 788 616 170 100 107 840×280×385
80MH11 80 160 200 8-Ø18 275 1036 824 210 160 172 1085×310×415
80MH22 80 160 200 8-Ø18 330 1174 914 260 278 308 1225×375×545
100MH37 100 180 220 8-Ø18 420 1500 1198 227 500 540 1625×465×705
150MH110 150 250 300 8-Ø26 592 1793 1388 370 1245 1301 1935×665×965

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
Impeller High chrome alloy
Diffuser & Casing Ductile iron
Diffuser & Casing Ductile iron
Diffuser & Casing Ductile iron
Inlet plate Ductile iron
Neck ring High chrome alloy
Strainer Stainless steel
Stator
Rotor Shaft: AISI420SS
Bearing
Bearing
Motor protector 3~11kW
Mechanical seal
Oil seal
Cable fixing plate Cast iron
Bearing fixing plate Cast iron
Cable

Overheat protector: 22~110kW

Oil water leakage probe: 37~110kW (22kW: on option)