Grundfos UNILIFT KP.250.AV.1 Submersible Pump

The UNILIFT KP.250.AV.1 submersible pump is a compact and robust unit designed for pumping grey water and non-aggressive water in domestic, commercial, and industrial applications. Its all-stainless steel construction ensures high corrosion resistance and a long service life, even under demanding conditions.

Thanks to its versatile design, this pump can be used as a portable unit or installed permanently, both indoors and outdoors, making it a reliable solution for the removal of light wastewater in buildings, technical facilities, and industrial processes.

Main Applications

• Domestic wastewater
• Wastewater in commercial buildings
• Non-aggressive industrial wastewater
• Drainage of basements, garages, pits, and tanks
• Portable use or fixed installation indoors and outdoors

Hydraulic Performance

• Maximum flow rate: 3.11 liters per second
• Nominal head: 5.12 m
• Maximum head: 7.5 m
• Maximum particle passage: 10 mm

Materials and Construction

• Hydraulic body in AISI 304 stainless steel
• Pump casing in AISI 304 stainless steel
• Impeller in AISI 304 stainless steel
• Compact, durable, and corrosion-resistant design

Installation

• Hydraulic connection type: Rp
• Connection diameter: 1 1/4 inches
• Maximum installation depth: 7 m
• Suitable for indoor and outdoor installation
• Ambient temperature range: 0 to 50 °C

Electrical Data

• Power input (P1): 480 W
• Rated power (P2): 0.25 kW
• Power supply: 1 x 220-230 V
• Network frequency: 50 Hz
• Rated current: 2.3 A
• Capacitor: 8 µF / 400 V
• Protection rating: IP68
• Insulation class: F
• Internal thermal motor protection
• Power cable length: 10 m
• SCHUKO plug type

Control and Safety

• Integrated AV-type float switch
• Motor protection via internal contact
• Automatic operation according to water level

Certifications

• CE
• VDE
• LGABG
• EAC
• TUV
• UKCA
• SEPRO

Weight

• Net weight: 7.17 kg
• Gross weight: 7.88 kg

The UNILIFT KP.250.AV.1 is a reliable, compact, and durable submersible pump, especially suitable for drainage and grey water removal applications where a robust, safe, and easy-to-install unit is required.