{"product_id":"grundfos-s3-120-300-500-8-66m-s-449-cast-iron-50kw-sewage-pump-collection-sumps-3-channel-impeller","title":"Grundfos S3.120.300.500.8.66M.S.449 Cast Iron 50kW Sewage Pump for Collection Sumps with 3-Channel Impeller","description":"\u003cp\u003eSewage 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.\u003c\/p\u003e\u003cp\u003eHydraulic 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.\u003c\/p\u003e\u003cp\u003eA 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.\u003c\/p\u003e\u003cp\u003eCast 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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e3-Channel Ductile Iron Impeller: Optimized for high-volume solids handling.\u003c\/li\u003e\n\u003cli\u003e120 mm Solids Passage: Exceptional clearance for large contaminants.\u003c\/li\u003e\n\u003cli\u003eIP68 Submersible Enclosure: Sealed for permanent operation at depths up to 20 metres.\u003c\/li\u003e\n\u003cli\u003eDual SiC-SiC Mechanical Shaft Seals: Protects against liquid ingress.\u003c\/li\u003e\n\u003cli\u003eBuilt-in Moisture Monitoring: Early detection prevents motor failure.\u003c\/li\u003e\n\u003cli\u003eIndustrial-Grade Cast Iron Housing: Resists wear and corrosion.\u003c\/li\u003e\n\u003cli\u003e50 kW Slow-Speed Motor: 8-pole design with high torque at 726 rpm.\u003c\/li\u003e\n\u003cli\u003eStar\/Delta Starting: Controlled power draw and reduced mechanical strain.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIMPORTANT:\u003c\/strong\u003e Bulk freight charges apply. Please contact us for a freight quote before ordering.\u003c\/p\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":50903918379255,"sku":"96810526","price":57185.17,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/grundfos-s3-120-300-500-8-66m-s-449-cast-iron-50kw-sewage-pump-collection-sumps-3-channel-impeller.png?v=1782815590","url":"https:\/\/foundationpumps.com.au\/products\/grundfos-s3-120-300-500-8-66m-s-449-cast-iron-50kw-sewage-pump-collection-sumps-3-channel-impeller","provider":"Foundation Pumps","version":"1.0","type":"link"}