{"product_id":"grundfos-se-56l-280-6-50d-300-cast-iron-low-head-wastewater-pump-groundwater-drainage-open-s-tube-impeller","title":"Grundfos SE.56L.280.6.50D.300 Cast Iron Low-Head Wastewater Pump for Groundwater Drainage with Open S-tube Impeller","description":"\u003cp\u003eCivil flood control and groundwater drainage sumps requiring high-capacity discharge utilize the SE.56L.280.6.50D.300 for centralized transfer projects. This cast iron 6-pole pump is intended for municipal and industrial wastewater applications specifically managing untreated effluents containing solids. It maintains consistent performance in infrastructure environments where liquid temperatures range from 0°C to +40°C.\u003c\/p\u003e\u003cp\u003eThe unit achieves a maximum flow up to 25380 L\/min and a maximum head of 20 m using a 28 kW motor. Drawing 59.5 Amps on a three-phase 415 V supply, the pump incorporates an internal cooling jacket for temperature management. This integrated system ensures that thermal stability remains high during high-capacity pumping in wastewater infrastructure.\u003c\/p\u003e\u003cp\u003eCentral to its hydraulic dynamics is the Open S-tube impeller with a 411.2 mm diameter and a 105 mm free passage for managing untreated wastewater containing solids. The nominal duty head is 10.46 m. Equipped with dual 300 mm inlet and outlet connections, the design supports high-capacity transfer while reducing clogging risks in municipal collection systems.\u003c\/p\u003e\u003cp\u003eStructural durability is provided by the EN-GJL-250 cast iron casing and double SiC\/SiC mechanical shaft seals. Protection includes integrated PTO sensors, moisture switches, and leakage sensors for comprehensive motor health monitoring. The unit includes a 10-metre S1BC4N8-F EMC power cable and an IP68 enclosure for installation depths to 30 metres.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eOpen S-tube impeller with 411.2 mm diameter and 105 mm passage for managing untreated wastewater.\u003c\/li\u003e\n\u003cli\u003eCast iron EN-GJL-250 pump housing and motor casing for structural durability in permanent service.\u003c\/li\u003e\n\u003cli\u003eDouble mechanical shaft seal with SiC\/SiC primary faces and Silicon Carbide\/Carbon barrier protection.\u003c\/li\u003e\n\u003cli\u003eIntegrated PTO sensors, moisture switches, and leakage sensors for motor protection and monitoring.\u003c\/li\u003e\n\u003cli\u003eInternal cooling jacket system for thermal stability in both submerged and dry pit environments.\u003c\/li\u003e\n\u003cli\u003eSupplied with a 10-metre S1BC4N8-F EMC power cable for reliable connection in drainage basins.\u003c\/li\u003e\n\u003cli\u003eIP68 enclosure suitable for installation depths up to 30 metres and 5 bar operating pressure.\u003c\/li\u003e\n\u003cli\u003eCompatible with the Grundfos DN300 auto-coupling system (96255839) for simplified maintenance access.\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":50903917330679,"sku":"92955266","price":44709.83,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/grundfos-se-56l-280-6-50d-300-cast-iron-low-head-wastewater-pump-groundwater-drainage-open-s-tube-impeller.png?v=1782815547","url":"https:\/\/foundationpumps.com.au\/products\/grundfos-se-56l-280-6-50d-300-cast-iron-low-head-wastewater-pump-groundwater-drainage-open-s-tube-impeller","provider":"Foundation Pumps","version":"1.0","type":"link"}