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SKU: 96810526
Grundfos S3.120.300.500.8.66M.S.449 Cast Iron 50kW Sewage Pump for Collection Sumps with 3-Channel Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Sewage pumping stations and municipal wastewater collection systems commonly use this slow-speed ductile iron submersible sewage pump for permanent submerged installation. Raw sewage and untreated effluents with significant solids content are handled reliably in demanding wet well environments requiring continuous operation.
Hydraulic performance delivers 32400 L/min flow and 17.1 m head, driven by a 50 kW slow-speed motor. The 8-pole motor operates at 726 rpm on a 415 V three-phase supply, drawing 98 Amps for consistent output during peak demand periods.
A ductile iron 3-channel impeller with 120 mm solids passage ensures safe passage of large particles without internal clogging. This configuration maintains steady flow patterns and operational stability in contaminated wastewater applications.
Cast iron housing with IP68 enclosure and Class F insulation provides extreme submerged durability. A dual SiC/SiC mechanical shaft seal prevents liquid ingress, while moisture sensors offer active motor protection. Includes a 15 m power cable and rated for depths up to 20 m.
FEATURES
- 3-Channel Ductile Iron Impeller: Optimized for high-volume solids handling.
- 120 mm Solids Passage: Exceptional clearance for large contaminants.
- IP68 Submersible Enclosure: Sealed for permanent operation at depths up to 20 metres.
- Dual SiC-SiC Mechanical Shaft Seals: Protects against liquid ingress.
- Built-in Moisture Monitoring: Early detection prevents motor failure.
- Industrial-Grade Cast Iron Housing: Resists wear and corrosion.
- 50 kW Slow-Speed Motor: 8-pole design with high torque at 726 rpm.
- Star/Delta Starting: Controlled power draw and reduced mechanical strain.
IMPORTANT: Bulk freight charges apply. Please contact us for a freight quote before ordering.
SPECIFICATIONS
| Max Flow | 32400 L/Min |
| Max Head | 17.1 m |
| Power | 50 kW / 415v |
| Rated Current | 98 Amps |
| Suitable For | Industrial Wastewater |
| Body Material | Cast Iron |
| Liquid Temperature | 0°C to +40°C |
| Outlet Size | 300 mm |
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.
Which material grades form the structural casing and internal rotating channels for centralized sewage intake?
The intake volute of Grundfos S3.120.300.500.8.66M.S.449 is manufactured from EN-GJL-250 cast iron, housing a precision-machined ductile iron three-channel rotating element.
What electrical motor rating, three phase supply voltage, and operational current draw power this intake pump?
Operating from a three-phase 415 V utility line, S3.120.300.500.8.66M.S.449 features a 50 kW electric motor drawing a rated current of 98 Amps.
What wastewater thermal limits and discharge pressure ratings apply to this primary treatment intake pump?
The operating parameters of S3-120-300-500-8-66M-S-449 support intake fluid temperatures from 0°C to 40°C and sustain discharge pressures up to PN 10 at depths up to 20 metres.
Across centralized wastewater intake risers, what peak discharge head does this multi-channel pump develop?
Across centralized wastewater intake risers, S3 120 300 500 8 66M S 449 develops an operational discharge head of 17.1 m.
Across centralized plant intake risers, what maximum fluid throughput is discharged into treatment facilities?
Across centralized plant intake risers, S3/120/300/500/8/66M/S/449 delivers a peak volumetric throughput of 32400 L/Min.
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