Grundfos Unilift KP Submersible Pump

UNILIFT KP is designed for liquid transfer and drainage of clean or slightly dirty wastewater with the pump completely or partly submerged in the liquid. It suits drainage of flooded cellars or buildings, pumping of domestic wastewater without toilet waste, emptying of pools, tanks and vessels, and pumping within agriculture, the dairy industry, horticulture and the process industry.

The pump is a single-stage, submersible, stainless-steel drainage pump in a robust design with an upward-pointing discharge port placed on top of the pump. Water enters through the holes of the suction strainer, which prevents the passage of large solids. The sturdy impeller has single-curved vanes with bevelled front edges that prevent fibres from jamming the impeller. The guide vanes in the pump housing guide the liquid, lifting sand grains into the liquid flow and so preventing blocking by sand.

The pump sleeve is made in one piece. The mains cable enters through a vulcanized and water-tight plug, secured to the socket of the hermetically sealed stator housing. The motor is a single-phase asynchronous canned motor with a liquid-filled rotor chamber and water-lubricated bearings, cooled by the pumped liquid around the motor. It incorporates automatic overload protection: on overload the motor stops and, once cooled, restarts automatically.

Maximum particle size is 0.4 in. Liquid temperature range is 32 °F to 122 °F, with 158 °F permitted for periods not exceeding two minutes at intervals of at least 30 minutes. Maximum installation depth is 30 ft below liquid level. The pumps are suitable for temporary as well as permanent free-standing installation and are not designed for continuous operation.

• All-stainless wet end — sleeve, housing, suction strainer, impeller, guide vanes and stator housing in AISI 304; shaft in AISI 431.
• Sand-shedding hydraulics — guide vanes lift sand grains into the liquid flow, preventing the pump blocking with sand.
• Anti-jam impeller — single-curved vanes with bevelled front edges stop fibres jamming the impeller.
• Sealed cable entry — vulcanized, water-tight plug secured to the socket of the hermetically sealed stator housing.
• Built-in motor protection — automatic overload protection stops the motor and restarts it once cooled; no additional motor protection required.
• Mounts three ways — vertical with the discharge port upwards, or horizontal or tilted with the discharge port as the highest point of the pump.
• CSA C/US approved, IP68 enclosure, insulation class F.

• Drainage of flooded cellars or buildings
• Pumping of domestic wastewater without toilet waste
• Emptying of pools, tanks and vessels
• Water and rainwater in horticulture; water from rivers and lakes
• Rainwater, drainage water and water from flooding; ditch drainage water
• Effluents from showers, washing machines and sinks below sewer level
• Groundwater lowering applications
• Domestic effluents from septic and sludge-treating systems
• Agriculture, the dairy industry, horticulture and the process industry

All three models listed are the manual (M) version and are supplied without a float switch. For automatic on/off the pump can be fitted with a float switch, or connected to a separate level switch and control box. Each model ships with 25 ft of cable and a NEMA 5 plug for 115 V service.

Order by part number: KP 150 — 011DC201; KP 250 — 012DC201; KP 350 — 013DC201.