Roll over image to zoom
SKU: 96001975
Grundfos Unilift AP12.50.11.3 Stainless Steel Three Phase Wastewater Pump for Basements with Semi-Open Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Intense fluid accumulation requires large-scale hydraulic clearance to properly manage industrial and commercial drainage pits. Verified as a heavy duty, submersible stainless steel grey water pump, the Grundfos UNILIFT AP12.50.11.3 aggressively manages high-volume non-aggressive liquids. The manual three-phase unit functions flawlessly in fixed plumbing systems or as a powerful portable emergency extraction tool.
Tremendous internal pressure generation relies entirely on a heavily upgraded commercial drive core. Wired securely to a 3 x 415 V grid, the massive 1.2 kW motor operates smoothly while drawing just 3.2 Amps. This optimized kinetic transfer forcefully ejects a 533 L/Min maximum flow directly out of an expanded 50 mm female discharge port, easily overcoming vertical gravity to secure an 18 metre maximum head.
Defending the primary fluid pathway against abrasive stormwater requires carefully widened physical tolerances. A high-capacity semi-open stainless steel impeller actively handles cloudy mixtures, allowing the safe continuous passage of solid matter up to 12 mm in diameter. This precise clearance ensures aggressive debris processing without mechanical stalling, taking water levels down to a 100 mm minimum.
Absolute physical durability is verified by an IP68 classification, safely validating deep underwater deployments down to 7 metres. An integrated motor cooling jacket successfully mitigates core heat, allowing the heavy-duty pump to maintain safe, continuous operations while only partially exposed. Capable of processing liquids between pH 4 and 10, the unit comfortably commands 55°C wastewater environments.
FEATURES
- Supplied with a raw 10-metre power cable specifically tailored for hardwired three-phase commercial integration.
- Constructed from premium 304 stainless steel across all wetted parts to permanently resist corrosion.
- Features an integrated motor cooling jacket for safe, extended operation during partial submersion.
- Utilizes a semi-open impeller design capable of continuously passing solid particles up to 12 mm in size.
- Rated with an IP68 enclosure class to safely permit underwater installations down to a 7-metre maximum depth.
- Certified to process a broad range of liquid chemistry, accommodating fluids with a pH value between 4 and 10.
- Engineered to safely tolerate 55°C liquid temperatures, and up to 70°C for brief two-minute intervals.
SPECIFICATIONS
| Max Flow | 533 L/Min |
| Max Head | 18 m |
| Power | 1.2 kW / 415v |
| Rated Current | 3.2 Amps |
| Suitable For | Heavy Duty Drainage |
| Body Material | 304 Stainless Steel |
| Liquid Temperature | Maximum 55°C |
| Outlet Size | 50 mm |
| Warranty | 24 Months |
Warranty & Returns
All products supplied by Foundation Pumps are covered by a minimum 12-month warranty unless otherwise stated. Some brands may offer longer manufacturer warranties. Warranty covers manufacturing defects, faulty materials and workmanship under normal use.
- Products must be installed correctly and in accordance with the manufacturer’s instructions.
- Warranty does not cover incorrect installation, misuse, dry running, normal wear and tear, unauthorised repairs or damage caused by external factors.
- Proof of purchase, photos, videos and installation details may be requested when assessing a warranty claim.
- The customer is responsible for returning the product to Foundation Pumps or the nominated service centre unless otherwise agreed.
- Removal, reinstallation, labour and associated site costs are generally the customer’s responsibility unless required under Australian Consumer Law.
- Change-of-mind returns may be accepted within 30 days provided the product is unused, uninstalled and returned in its original packaging.
- Customers are responsible for return freight costs for change-of-mind returns.
- Restocking fees may apply to special-order, bulky or non-stocked products.
- Used, installed or specially ordered products may not be eligible for change-of-mind returns.
- If a product arrives damaged or faulty, please contact Foundation Pumps as soon as possible so we can assist with the appropriate repair, replacement or refund.
Your rights under Australian Consumer Law are not affected.
What is the maximum water flow rate and head pressure of this pump?
Rated for dependable performance, the Grundfos Unilift AP12.50.11.3 provides up to 533 L/Min in flow and up to 18 m in head, depending on operating conditions.
How much electricity and current does this pump draw under load?
Electrical power for the Unilift AP12.50.11.3 requires a 415v connection, driving an efficient 1.2 kW motor that draws 3.2 Amps.
What materials make this pump durable against corrosion and wear?
Structural defense on the Unilift-AP12-50-11-3 is provided by a rugged Stainless Steel casing designed to withstand heavy mechanical stress.
What metallurgy is selected for the pump body to resist abrasive wear?
Built with a resilient high-grade alloy body, the Unilift AP12 50 11 3 maintains material durability against fluid abrasion and wear.
What warranty coverage applies to this pump for long-term peace of mind?
Backed by Grundfos engineering, the Unilift/AP12/50/11/3 carries an official 2 Years warranty with genuine manufacturer support.
Need help choosing the right pump?
Our team of pump experts are here to help you find the perfect solution for your application.
- Free expert advice
- Pump sizing & system recommendations
- Fast response — call or email us