UMBO DEWATERING PUMPS Technical Specification Head Range-upto 120 MTRS. Capacity-upto 15000 LPM. H. P. -1. 5 HP-30 HP Motor-Oil filled, Vertical. Pump-Single phase, Bottom section. RPM-2900 / 1440. Seal-Dual mechanical seal for pump & motor each Supply-Three Phase, 50Hz, 320 / 440 volts. Application For pumping heavily contaminated water with sand, Gravel & sludge matter I Construction sites, Mines, Thermal Plants, Cement & Steel plants, Pits & Quarries, Narrow Coffer, Dams or Deep Excavation.