Grundfos UNILIFT KP250-M-1 suits rainwater, groundwater and suitable non-aggressive grey-water drainage, with a maximum flow of 186.6L/min and maximum head of 7.5m. These are separate limits. Actual flow depends on lift and pipe resistance; the 50Hz performance curve helps assess expected flow for the installation. Performance is 66.7L/min at approximately 6.8m head.
The outlet is 32mm (1 1/4") Rp / BSP female thread. Maximum particle diameter is 10mm. Suitable for water containing small amounts of suspended solids. It is unsuitable for sewage, long fibres, stones, abrasive solids or aggressive and flammable liquids.
With no level switch, it gives direct manual control for supervised pumping and water transfer. The compact body fits where a swinging float would need more space.
Start with at least 30mm of water. Under supervised operation the pump can lower the water level to 15mm; stop before the inlet draws air. There is no automatic low-water stop. With the supplied 5m cable, maximum installation submergence is 2m. Keep at least 3m of cable above liquid level.
The pump uses a 220-240V single-phase, 50Hz supply and comes with a 5m cable and Australian plug. Suitable liquid temperature is 0-50°C and pH is 4-9. Internal thermal overload protection stops the motor if it overheats and resets after cooling. Keep the inlet covered during pumping and do not run dry.
The stainless-steel housing and semi-open stainless-steel impeller provide a compact, corrosion-resistant drainage pump. Pumped liquid flows through a cooling jacket around the motor, helping cool it during partly submerged operation. Two lip seals with grease between them seal the shaft.
Two-year manufacturer warranty, subject to Grundfos warranty terms and applicable consumer rights.
Grundfos UNILIFT KP Official 50Hz Performance Curve
KP Installation & Operating Instructions
