{"product_id":"grundfos-sl-56h-210-4-50d-100-cast-iron-high-head-wastewater-pump-open-s-tube-impeller","title":"Grundfos SL.56H.210.4.50D.100 Cast Iron High-Head Wastewater Pump with Open S-Tube Impeller","description":"\u003cp\u003eThe Grundfos SL.56H.210.4.50D.100 is intended for permanent submerged installation in municipal wet wells and collection basins requiring high-head wastewater transfer. Certified under CE EN12050-1, this cast iron unit includes ROHS and WEEE approvals for handling raw effluents in civil infrastructure. It is designed for operation in liquids with temperatures between 0°C and 40°C.\u003c\/p\u003e\u003cp\u003ePerformance is delivered by a 21 kW 4-pole motor operating at 1490 rpm on a 3 x 415 V supply. The pump achieves a maximum flow up to 7860 L\/min and a maximum head up to 40 m with a rated current of 52.5 Amps. The motor is rated for continuous S1 duty and is cooled by the surrounding liquid during normal submerged operation.\u003c\/p\u003e\u003cp\u003eThe hydraulic system uses an Open S-tube impeller with a 340.8 mm actual diameter to manage untreated wastewater containing solids. The nominal duty head is 23.26 m. Featuring a DN 200 inlet and a DN 100 outlet, this hydraulic design supports high-volume wastewater transfer while reducing the risk of clogging in high-pressure networks.\u003c\/p\u003e\u003cp\u003eBuilt with an EN-GJL-250 cast iron pump housing and motor casing, the pump features a double mechanical shaft seal arrangement and integrated PTO sensors for motor protection and monitoring. It is supplied with a 10-metre S1BC4N8-F EMC power cable and an IP68 enclosure suitable for installation depths up to 30 metres. The unit is compatible with the Grundfos auto-coupling system (96090994).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eOpen S-tube impeller with 340.8 mm actual diameter designed to manage untreated wastewater containing solids.\u003c\/li\u003e\n\u003cli\u003eCast iron EN-GJL-250 pump housing and motor casing providing structural durability for permanent submerged service.\u003c\/li\u003e\n\u003cli\u003eDouble mechanical shaft seal arrangement with SiC\/SiC primary seal and Silicon Carbide\/Carbon secondary seal.\u003c\/li\u003e\n\u003cli\u003eIntegrated PTO sensors for motor protection and monitoring to ensure operational safety and stator longevity.\u003c\/li\u003e\n\u003cli\u003eSupplied with a 10-metre S1BC4N8-F EMC power cable for electrical connection in municipal wet wells.\u003c\/li\u003e\n\u003cli\u003eIP68 enclosure suitable for installation depths up to 30 metres with a 10 bar maximum operating pressure.\u003c\/li\u003e\n\u003cli\u003eCompatible with the Grundfos auto-coupling system (96090994) for simplified submerged installation and maintenance.\u003c\/li\u003e\n\u003cli\u003eClass H motor insulation with support for up to 30 starts per hour during continuous S1 duty cycles.\u003c\/li\u003e\n\u003c\/ul\u003e ","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":50901323612407,"sku":"92955427","price":28886.83,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/grundfos-sl-56h-210-4-50d-100-cast-iron-high-head-wastewater-pump-open-s-tube-impeller.png?v=1782731425","url":"https:\/\/foundationpumps.com.au\/products\/grundfos-sl-56h-210-4-50d-100-cast-iron-high-head-wastewater-pump-open-s-tube-impeller","provider":"Foundation Pumps","version":"1.0","type":"link"}