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Dry-installed pumps

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 |
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)