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SKU: 92955429
Grundfos SL.56H.280.4.50D.100 Cast Iron High-Head Wastewater 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.100 is intended for permanent submerged installation in municipal wet wells and wastewater transfer stations. Certified under CE EN12050-1, this cast iron unit holds ROHS and WEEE approvals for use in civil utility networks. It is developed for handling untreated wastewater containing large solids in infrastructure requiring consistent discharge pressure.
This model incorporates a 28 kW 4-pole motor operating on a 3 x 415 V supply with a rated current of 60.5 Amps. It achieves a maximum head up to 43 m and a maximum flow up to 9180 L/min at a rated speed of 1490 rpm. The system is designed for continuous S1 duty in untreated wastewater at temperatures ranging from 0°C to 40°C.
The hydraulic system uses an Open S-tube impeller with a 363.2 mm actual diameter to handle solids in untreated wastewater. The nominal duty head is 26.85 m. Featuring a DN 200 inlet and a DN 100 outlet, this hydraulic design supports high-volume wastewater transfer while reducing the risk of clogging in high-demand municipal networks.
Built with an EN-GJL-250 cast iron pump housing and motor casing, the unit features 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 pump is compatible with the Grundfos auto-coupling system (96090994).
FEATURES
- Open S-tube impeller with a 363.2 mm actual diameter for solids handling in municipal wastewater networks.
- Cast iron EN-GJL-250 pump housing and motor casing for structural durability in permanent 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 thermal safety.
- 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 maximum operating pressure.
- Compatible with the Grundfos auto-coupling system (96090994) for simplified maintenance access.
- 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 | 43 m |
| Power | 28 kW / 415v |
| Rated Current | 60.5 Amps |
| Suitable For | Wastewater Transfer |
| Body Material | Cast iron |
| Liquid Temperature | Maximum 40°C |
| Inlet Size | 200 mm |
| Outlet Size | 100 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 maximum vertical elevation head can this pump achieve?
Under rated operating head, the Grundfos SL.56H.280.4.50D.100 can lift water to a maximum dynamic head of approximately 43 m through vertical risers.
Does this pump run on standard household power or three-phase power?
Running on 415 V three-phase power supplies, the SL.56H.280.4.50D.100 is driven by a 28 kW motor rated at 60.5 Amps.
Where is this pump typically deployed across residential and rural systems?
Routine operational tasks matching the SL-56H-280-4-50D-100 encompass Unscreened municipal sewage is accommodated by through a generous 41 mm spherical internal clearance across the volute across connected networks.
How is this pump mounted for quick inspection and servicing?
Installation of the SL 56H 280 4 50D 100 is streamlined using a standard auto-coupling, enabling fast docking onto existing discharge lines.
What maximum flow rate does this pump achieve during heavy influx?
Fluid evacuation capacity for the SL/56H/280/4/50D/100 peaks at approximately 9180 L/Min, providing dependable high-volume drainage.
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