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SKU: 92955432
Grundfos SL.56H.280.4.50D.150 Cast Iron High-Head Effluent Pump with Open S-Tube Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
The Grundfos SL.56H.280.4.50D.150 is designed for permanent submerged installation in treatment plants and industrial sumps requiring reliable discharge performance. This cast iron unit holds CE EN12050-1 certification along with ROHS and WEEE approvals. It is developed for handling raw effluents and untreated wastewater containing large solids.
A 28 kW 4-pole motor powers the unit at 1490 rpm on a 3 x 415 V supply with a rated current of 60.5 Amps. It achieves a maximum head up to 46 m and a maximum flow up to 9180 L/min. The system is rated for continuous S1 duty in liquids between 0°C and 40°C, with cooling provided by the surrounding media during submerged operation.
The hydraulic system uses an Open S-tube impeller with a 363.2 mm actual diameter to handle untreated wastewater containing solids. The nominal duty head is 26.85 m. The hydraulic design incorporates a DN 200 inlet and a DN 150 (6") outlet, supporting high-volume wastewater transfer while reducing the risk of clogging.
Construction features an EN-GJL-250 cast iron pump housing and motor casing with double mechanical shaft seals and integrated PTO sensors for motor protection and monitoring. It is supplied with a 10-metre S1BC4N8-F EMC power cable and an IP68 enclosure suitable for installation depths up to 30 metres. The unit is compatible with the Grundfos auto-coupling system (97695489).
FEATURES
- Open S-tube impeller with a 363.2 mm actual diameter for solids handling in effluent transfer sumps.
- EN-GJL-250 cast iron pump housing and motor casing for structural durability in submerged service.
- Double mechanical shaft seal arrangement with SiC/SiC primary seal and Silicon Carbide/Carbon secondary seal.
- Integrated PTO sensors for motor protection and monitoring within the windings for reliability.
- Supplied with a 10-metre S1BC4N8-F EMC power cable for reliable electrical connection.
- IP68 enclosure suitable for installation depths up to 30 metres with a 10 bar operating pressure limit.
- Compatible with the Grundfos auto-coupling system (97695489) for simplified submerged installation.
- Class H motor insulation with support for up to 30 starts per hour during continuous S1 duty cycles.
IMPORTANT: Bulk freight charges apply. Please contact us for a freight quote before ordering.
SPECIFICATIONS
| Max Flow | 9180 L/Min |
| Max Head | 46 m |
| Power | 28 kW / 415v |
| Rated Current | 60.5 Amps |
| Suitable For | Effluent Transfer |
| Body Material | Cast iron |
| Liquid Temperature | Maximum 40°C |
| Inlet Size | 200 mm |
| Outlet Size | 150 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 mounting system enables fast installation and retrieval of this pump?
Installation of the Grundfos SL.56H.280.4.50D.150 is streamlined using a standard auto-coupling (97695489), enabling fast docking onto existing discharge lines.
What peak fluid displacement volume can this pump deliver?
Fluid evacuation capacity for the SL.56H.280.4.50D.150 peaks at approximately 9180 L/Min, providing dependable high-volume drainage.
What total dynamic head can this pump overcome in vertical pipework?
Pumping performance for the SL-56H-280-4-50D-150 provides up to 46 m of vertical dynamic lift, depending on system friction and line sizing.
What electrical connection and motor power run this pump?
Under full load conditions, the motor in the SL 56H 280 4 50D 150 delivers 28 kW on a 415 V three-phase line drawing 60.5 Amps.
Where is this pump commonly installed and utilized?
Water management applications designate the SL/56H/280/4/50D/150 for High hydraulic efficiency is achieved in and reliable clearance of solids up to 44 mm via its Open S-tube profile, supporting consistent property operation.
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