Roll over image to zoom
SKU: 92955263
Grundfos SE.56L.185.6.50D.300 Cast Iron Low-Head Wastewater Pump for Stormwater Drainage with Open S-tube Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Flood control projects and municipal stormwater drainage networks rely on the high-volume transfer capabilities of the SE.56L.185.6.50D.300 for centralized collection. This 6-pole cast iron pump is intended for municipal and industrial wastewater applications where untreated effluents containing solids must be moved. It is engineered for permanent service in infrastructure where liquid temperatures range from 0°C to +40°C.
The pump achieves a maximum flow up to 20940 L/min and a maximum head of 15 m when powered by an 18.5 kW motor. Drawing 48 Amps on a 415 V supply, the unit utilizes an internal cooling jacket for thermal safety. This integrated cooling allows for reliable operation during high-capacity transfer cycles in wastewater infrastructure.
Central to its hydraulic performance is the Open S-tube impeller with a 379.4 mm diameter and a large 105 mm free passage for managing untreated wastewater containing solids. The nominal duty head is 8.28 m. Equipped with dual 300 mm inlet and outlet DIN flanges, the design supports high-volume transfer while reducing the risk of clogging in municipal collection systems.
Structural durability is provided by an EN-GJL-250 cast iron pump housing and motor casing, featuring double mechanical SiC/SiC shaft seals. Safety systems include integrated PTO sensors, moisture switches, and leakage sensors for comprehensive motor health monitoring in centralized stations. The unit is supplied with a 10-metre S1BC4N8-F EMC power cable and an IP68 enclosure.
FEATURES
- Open S-tube impeller with 379.4 mm diameter and 105 mm passage for managing untreated wastewater.
- EN-GJL-250 cast iron pump housing and motor casing for structural integrity in utility networks.
- Double mechanical shaft seal with SiC/SiC primary faces and Silicon Carbide/Carbon secondary barrier.
- Integrated PTO sensors, moisture switches, and leakage sensors for motor protection and monitoring.
- Internal cooling jacket system facilitating thermal stability in both wet and dry installations.
- Supplied with a 10-metre S1BC4N8-F EMC power cable for reliable connection in drainage sumps.
- IP68 enclosure suitable for installation depths up to 30 metres and 5 bar maximum pressure.
- Compatible with the Grundfos DN300 auto-coupling system (96255839) for simplified maintenance access.
IMPORTANT: Bulk freight charges apply. Please contact us for a freight quote before ordering.
SPECIFICATIONS
| Max Flow | 20940 L/Min |
| Max Head | 15 m |
| Power | 18.5 kW / 415v |
| Rated Current | 48 Amps |
| Suitable For | Stormwater Drainage |
| Body Material | Cast Iron |
| Liquid Temperature | 0°C to +40°C |
| Inlet Size | 300 mm |
| Outlet Size | 300 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.
Where is this pump typically deployed across residential and rural systems?
Suited for diverse installations, the Grundfos SE.56L.185.6.50D.300 performs Smooth passage of unscreened waste is achieved in via a specialized S-tube channel accommodating solids up to 105 mm with dependable fluid propulsion.
How is this pump mounted for quick inspection and servicing?
Mechanical mounting for the SE.56L.185.6.50D.300 is configured around a standard Auto-coupling for straightforward pit alignment.
What discharge flow rate does this pump maintain during peak operation?
Displacing fluid into connected headers, the SE-56L-185-6-50D-300 sustains up to 20940 L/Min of volumetric throughput.
How much pumping height does this pump provide?
Vertical elevation capability on the SE 56L 185 6 50D 300 reaches a maximum dynamic head of approximately 15 m under rated conditions.
What motor power rating and running current power this pump?
Powered by a dedicated 18.5 kW motor, the SE/56L/185/6/50D/300 connects to 415 V three-phase mains power with a rated current draw of 48 Amps.
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










