LH-W


High-Head Dewatering Pumps
(Dual Impellers)

Discharge Bore(mm) 50 - 100
Motor Output(kW) 3 - 110

The LH-W-series is a three-phase cast iron extra high head drainage pump having dual impellers. Being the pump cylindrical and slim, it can be installed in a well casing for deep well dewatering. 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

Performance Curves
Model Selection
Discharge
Bore
(mm)
ModelMotor
Output
(kW)
PhaseStarting
Method
Solids
Passage
(mm)
50 LH23.0W 3 Three D.O.L. 6
50 LH25.5W 5.5 Three D.O.L. 6
80 LH311W 11 Three D.O.L. 8.5
80 LH322W 22 Three D.O.L. 8.5
100 LH430W 30 Three Star-Delta 8.5
100 LH4110W 110 Three Star-Delta 8