The Grundfos Unilift KP250-A-1 is a lightweight, robust submersible drainage pump designed for both temporary and permanent free-standing installation. It is suitable for pumping drain water and grey wastewater, as well as use in collecting tanks.

Constructed from stainless steel, the Unilift KP250-A-1 provides excellent durability and corrosion resistance while requiring minimal maintenance. Its compact and lightweight design makes it particularly well suited to a wide range of drainage applications.

The KP250-A-1 features a single-stage, semi-open impeller and is supplied with a float switch for automatic operation and a non-return flap valve for installation in the outlet. The clipped-on strainer helps prevent larger particles from entering the pump and allows easy cleaning and maintenance.

The motor is cooled by the pumped liquid flowing around it and incorporates automatic overload protection. If the motor becomes overloaded, it will switch off and automatically restart once it has cooled to normal operating temperature.

Applications

The Unilift KP250-A-1 is suitable for pumping:

• Water and rainwater in horticulture
• Water from rivers and lakes
• Rainwater and drainage water
• Flood water
• Water for filling and emptying containers, ponds and tanks
• Effluent from showers, washing machines and sinks below sewer level
• Pool water
• Ditch drainage water
• Groundwater for lowering applications
• Domestic effluent from septic and sludge-treatment systems
• Effluent from viaducts and underpasses
• Drainage water from garage sprinkler systems

Features & Benefits

• Flow rate: Up to 170 LPM
• Automatic operation via integrated float switch
• Single-stage submersible drainage pump
• Semi-open impeller
• Stainless steel construction
• Robust and corrosion-resistant design
• Suitable for temporary or permanent free-standing installation
• Non-return flap valve included
• Clipped-on strainer for easy cleaning
• Lightweight and easy to handle
• Automatic overload protection
• Automatic restart after motor cooling
• Motor cooled by pumped liquid
• Suitable for particles up to 10 mm

Operating Conditions

• Liquid temperature: 0°C to 50°C
• Maximum particle size: 10 mm
• pH range: 4–9
• Maximum installation depth: 10 m

Product Details

Model: KP250-A-1

Product Number: 92533646