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SKU: 96810439
Grundfos S2.145.300.280.8.62E.C.421 Cast Iron 28 kW Sewage Pump for Groundwater Drainage with 2-Channel Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Delivering 24900 L/min flow capacity with a 145 mm free passage, the Grundfos S2.145.300.280.8.62E.C.421.G.N.D.513GPA 8-pole submersible sewage pump handles wastewater, process water and unscreened raw sewage where large solids passage and very high flow rates are required. The Variant C cooling jacket supports continuous submerged operation at depths up to 20 m.
A 28 kW motor (P2) at 726 rpm from a 415 V three-phase supply draws 54 A with 87% efficiency at both full and half load. Maximum head is 13.1 m, with DN300 outlet and DN145 inlet connections carrying a PN10 pressure rating for this configuration.
Hydraulic performance is provided by a 2-channel ductile iron impeller with 145 mm free passage, with the 421 mm impeller diameter and dual-channel configuration matched to the E lifting height class requirements. The impeller geometry determines the head and flow characteristics for this Range 62 model.
IP68 enclosure and Class F insulation are provided by the cast iron housing, with primary silicon carbide and secondary silicon carbide-carbon shaft seals protecting the motor compartment. Integrated moisture sensors are fitted as standard, with 15 m S1BN8-F cable and Star/Delta starting.
FEATURES
- 8-Pole Motor Design: The 8-pole motor operates at 726 rpm, providing low-speed operation suitable for high-volume transfer applications where reduced hydraulic loading is beneficial.
- 2-Channel Ductile Iron Impeller: The dual-channel impeller design provides stable hydraulic performance across the operating range while maintaining efficient solids handling capability for municipal wastewater applications.
- 145 mm Free Passage: The internal clearance through the impeller and volute allows solids and unscreened sewage particulates to pass without blocking the hydraulic flow path during operation.
- DN300 / DN145 Connection: The outlet connection is sized at DN300 with a PN10 pressure rating, while the inlet connection is DN145, matching the hydraulic design requirements of this configuration.
- Variant C Cooling Jacket: The integrated cooling jacket surrounds the motor stator to dissipate heat during continuous submerged operation, maintaining stable motor temperatures in wet well installations.
- IP68 Enclosure Protection: The motor housing is fully sealed against permanent submersion, with the IP68 rating confirming suitability for continuous operation at depths up to 20 m.
- Silicon Carbide Shaft Seals: The primary shaft seal uses silicon carbide faces while the secondary seal employs a silicon carbide-carbon combination, providing two-stage protection against liquid ingress into the motor compartment.
- Integrated Moisture Sensors: Sensors are fitted within the motor housing to detect the presence of moisture, providing early indication of potential seal degradation or liquid ingress during service.
IMPORTANT: Bulk freight charges apply. Please contact us for a freight quote before ordering.
SPECIFICATIONS
| Max Flow | 24900 L/Min |
| Max Head | 13.1 m |
| Power | 28 kW / 415v |
| Rated Current | 54 Amps |
| Suitable For | Heavy Duty Sewage Transfer |
| 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.
What maximum immersion depth, liquid temperature threshold, and thermal operating range are provided?
Submerged basin deployment for the S2.145.300.280.8.62E.C.421 accommodates depths up to approximately 20 m while processing wastewater up to 40°C.
Against elevation resistance, what maximum lift head can this wastewater pump achieve?
Dynamic head performance certified for the Grundfos S2.145.300.280.8.62E.C.421 reaches a maximum elevation rating of approximately 13.1 m.
What maximum delivery flow capacity and flanged discharge sizing are certified on this unit?
Wastewater transfer volume peaks at a delivery flow rate of approximately 24900 L/Min on the S2-145-300-280-8-62E-C-421, connecting across a DN 300 (standard flanged connection).
What casing metallurgy, alloy material, and free passage dimensions prevent pump blockages?
Structural longevity on the S2 145 300 280 8 62E C 421 is reinforced by Cast iron housing and wetted components and a clogging-resistant channel impeller clearing spherical solids up to 145 mm.
How is this pump powered regarding electrical motor kilowatt capacity, supply voltage, and current draw?
Operating on utility electrical mains, the S2.145.300.280.8.62E.C.421.G.N.D.513GPA features a motor rated at 28 kW connecting to 415 V, 50 Hz, three-phase pulling 54 A.
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