Grundfos UNILIFT KP.250.A.1 submersible pump.

The Grundfos UNILIFT KP.250.A.1 submersible pump is an efficient and durable solution for wastewater pumping in commercial, domestic, and industrial applications. Specifically designed to pump non-aggressive water and gray water, this compact and portable pump is versatile and can be used both as a mobile unit and in fixed installations, making it ideal for a variety of applications, from basement drainage to water evacuation in industrial plants.

Versatile applications

The UNILIFT KP.250.A.1 is suitable for handling wastewater with small particles, making it a perfect choice for draining flooded areas, gray and clean water evacuation systems in commercial and residential buildings. Its ability to pump particles up to 10 mm in diameter ensures obstruction-free operation, making it ideal for areas that require reliable and continuous drainage.

Optimized technical performance

With a maximum flow rate of 3.11 liters per second and a maximum pumping height of 7.5 meters, this pump offers reliable performance in situations where efficient wastewater drainage is required. The nominal height of 5.12 meters ensures that the pump can handle a wide variety of drainage applications without loss of efficiency.

Key technical specifications:

• Maximum flow rate: 3.11 l/s
• Nominal pumping height: 5.12 m
• Maximum pumping height: 7.5 m
• Maximum particles: 10 mm

Durable and resistant materials

The pump is constructed with high-quality materials that ensure a long service life. Both the hydraulic body and the impeller are made of AISI 304 stainless steel (EN 1.4301), providing excellent corrosion resistance and ensuring long-lasting performance even in demanding environments. This makes it suitable for use in wet areas and for outdoor and indoor applications.

Flexible and easy installation

The Grundfos UNILIFT KP.250.A.1 is easy to install, whether in fixed installations or as a portable unit for temporary applications. With an inlet/outlet connection of 1 1/4 inches and a maximum installation depth of 2 meters, it fits perfectly into a wide range of existing piping systems. Additionally, the liquid temperature range of 0 to 50 °C makes it a flexible option for different types of wastewater.

Installation data:

• Connection size: 1 1/4 inch
• Maximum installation depth: 2 m
• Liquid temperature range: 0 to 50 °C
• Liquid temperature during operation: 20 °C

Energy efficiency and advanced protection

This pump is equipped with a 480 W input power motor, providing a nominal power of 0.25 kW. Its efficient design ensures low energy consumption without compromising performance. Additionally, it features internal thermal protection that prevents overheating and extends the motor's lifespan. The IP68 protection class ensures that the pump is completely submersible and protected against dust and water ingress.

Electrical specifications:

• Input power (P1): 480 W
• Nominal power (P2): 0.25 kW
• Nominal voltage: 220-230 V
• Nominal current: 2.3 A
• Frequency: 50 Hz
• Protection degree: IP68
• Insulation class: F
• Power cable length: 5 m with SCHUKO plug

Certifications and approvals

The Grundfos UNILIFT KP.250.A.1 has multiple certifications that ensure compliance with the highest quality and safety standards, including CE, RCM, VDE, UKCA, and more. These certifications guarantee that the pump is suitable for use in various wastewater handling applications, both domestically and commercially and industrially.

Additional specifications:

• Net weight: 6.42 kg
• Gross weight: 7.11 kg
• Transport volume: 0.013 m³