Grundfos UNILIFT AP35.40.08.A1V Submersible Pump

The Grundfos UNILIFT AP35.40.08.A1V submersible pump is a robust and efficient solution for handling wastewater and non-aggressive water in commercial and domestic applications. This sump pump is designed to pump grey water with particles up to 35 mm, making it ideal for a variety of applications, such as the removal of groundwater, surface water, and rainwater. Made from high-quality stainless steel (AISI 304), the UNILIFT AP35 ensures great durability and corrosion resistance, guaranteeing reliable operation even in demanding environments.

The UNILIFT AP35.40.08.A1V model is equipped with a VORTEX impeller, which facilitates the efficient handling of solid particles and offers consistent performance in wastewater pumping. Its single-stage submersible design includes a vertical discharge outlet and is suitable for both fixed installations and portable use. Additionally, this pump includes a level switch, allowing automatic start and stop based on the liquid level, ensuring unattended operation and making it easy to use in applications where manual control is impractical.

One of the most outstanding features of the Grundfos UNILIFT AP35 pump is its robust construction, which includes a double seal and an intermediate chamber filled with non-toxic oil, providing excellent protection against wear and leaks. The 1.2 kW single-phase motor is fully enclosed and protected by a class F insulation system, with thermal overload protection, ensuring a long service life and safe operation.

The design also includes a cooling jacket that allows continuous cooling of the motor by the pumped liquid, maintaining an optimal operating temperature and preventing overheating. Additionally, the ball bearings are lubricated for life, minimising the need for maintenance.

Technical Specifications:

• Maximum flow rate: 5 l/s.
• Maximum particle size: 35 mm.
• Liquid temperature range: From 0 °C to 55 °C, with a recommended operating temperature of 20 °C.
• Maximum installation depth: 7 metres.
• Impeller type: VORTEX, designed to handle solids efficiently.
• Maximum working pressure: 6 bar.

Construction Materials:

• Hydraulic body: Made of stainless steel (EN 1.4301 / AISI 304), ensuring high corrosion resistance.
• Impeller: Also stainless steel (EN 1.4301 / AISI 304), providing excellent durability and reliability in demanding working conditions.
• Connection cable: Brass (CW602N), ensuring a secure and robust connection.

Electrical Data:

• Input power (P1): 1.2 kW.
• Rated power (P2): 0.7 kW.
• Network frequency: 50 Hz.
• Rated voltage: 1 x 230 V.
• Rated current: 5.5 A.
• Rated speed of the drive: 2795 rpm.
• Power factor (cos phi): 0.98.
• Degree of protection: IP68, ensuring total protection against dust and water, allowing safe operation in submerged conditions.
• Cable length: 10 m, equipped with a SCHUKO plug.

Key Advantages:

• Ability to handle large particles: With a free passage of 35 mm, the pump can process grey water with solids, making it ideal for applications that require handling water with debris or dirt.
• High durability: Made of stainless steel, both the body and the impeller, the UNILIFT AP35 is designed to resist corrosion and wear, prolonging its life even in adverse conditions.
• Automatic level switch: The automatic start and stop system using a level switch ensures that the pump operates when needed, preventing dry running and protecting the motor from potential damage.
• Ready-to-use design: The pump is equipped with a handle and supplied with a 10-metre power cable, facilitating its use in both fixed and portable installations.

Main Applications:

• Commercial buildings: Handling non-aggressive wastewater and drainage systems in basements, garages, and other commercial facilities.
• Homes and residential areas: Ideal for evacuating groundwater, surface water, or rainwater in residential properties.
• Outdoor drainage systems: The pump is suitable for both indoor and outdoor use, tackling flood situations or problematic drainage.