Geothermal submersible borehole pump (deep well water pump) Model: QJR Series, 60 models, 800 sizes in total. Flow Rate: 5 to 600 m3/h (1.4 to 166.7l/s) Head: 6 to 600 m (19.7 to 1968.5 feet) Well Diameter: 150 to 400mm (5.9 to 15.7 inch) Max. Rotate Speed: 3000 r/min Pump Size: 6", 7", 8", 9", 12", 14" Operating limits: 1, Maximum ambient temperature: 100 deg. C 2, Maximum immerging depth: 70m (229.6 feet) Motor: 1. Rewindable motor 2. Voltage: 380V；220v;400v,415v 3. Frequency: 50Hz 4. Max. Power: 250KW Materials: cast iron, stainless steel Application: *Applied to the geothermal well for heat water supply of medical treatment, bathing, aquaculture, industrial and agricultural production, and entertainment equipments, etc. Advantages: 1) Heat-resistant, anti-corrosion, anti-aging, high efficiency, energy-saving, easy and convenient installation and maintenance, etc 2) Greater weight for same bulk 3) Completely meeting power standard 4) Long service life: normally 5 years