Grundfos Unilift AP12.40.06.A1 Stainless Steel Float Wastewater Pump for Pits with Semi-Open Impeller

Managing sudden fluid accumulation across domestic and light industrial sumps requires dependable automated systems. Categorized as a heavy duty, submersible stainless steel grey water pump, the Grundfos UNILIFT AP12.40.06.A1 actively maintains dry conditions. Triggered by a built-in float switch, this single-phase unit efficiently clears clean water, storm water, and slightly dirty run-off from permanent trench installations.

Stable power allocation ensures immediate and forceful hydraulic action upon start-up. Wired into a standard 1 x 240 V grid, the highly efficient 0.6 kW motor sustains a strict 4.4 Amps rated current. The system creates a powerful 300 L/Min maximum flow output from the 40 mm female discharge port, easily overcoming vertical pipeline resistance to achieve a 13 metre maximum head during fluid transfer cycles.

Internal mechanical reliability is heavily dictated by the geometry of the fluid transit path. A precision-balanced semi-open stainless steel impeller expertly controls the central circulation, allowing solid 12 mm particles to successfully pass through the volute. This physical clearance restricts abrasive damage to the core components and safely draws the standing liquid down to a 100 mm minimum depth before the float triggers a shutdown.

An IP68 structural classification guarantees that the motor remains entirely protected at installation depths up to 7 metres. An integrated liquid cooling jacket continuously dissipates operating heat, allowing the automated system to securely pump while only partially submerged. It safely manages 55°C continuous environmental fluids, briefly tolerates 70°C for up to two minutes, and processes wastewater spanning a pH range from 4 to 10.

FEATURES

• Features a heavy-duty brass cable union to strictly isolate the primary electrical feed from ambient moisture intrusion.
• Rated with an internal Class F insulation threshold to safely tolerate heavy electrical load fluctuations.
• Utilizes a Permanent Split Capacitor (PSC) motor architecture to ensure smooth rotational startup sequences.
• Equipped with internal thermal protection circuitry that acts as an immediate safety cutoff to prevent coil burnout.
• Pre-installed with a 10-metre power supply cable terminating in a standard single-phase plug for immediate deployment.
• Certified with C-Tick and CE compliance markings to guarantee strict adherence to recognized environmental standards.
• Engineered with an 11.8 kg net weight, ensuring reliable placement within automated permanent pit setups.