{"product_id":"grundfos-sl-56h-320-4-50d-150-cast-iron-high-head-wastewater-pump-open-s-tube-impeller","title":"Grundfos SL.56H.320.4.50D.150 Cast Iron High-Head Wastewater Pump with Open S-Tube Impeller","description":"\u003cp\u003eDesigned for large-scale municipal infrastructure, the Grundfos SL.56H.320.4.50D.150 is intended for permanent submerged installation in wastewater treatment plants. This cast iron unit holds CE EN12050-1 certification with ROHS and WEEE environmental approvals. It is suitable for handling raw effluents containing large solids at temperatures up to 40°C.\u003c\/p\u003e\u003cp\u003eThe pump incorporates a 32 kW 4-pole motor running at 1490 rpm on a 3 x 415 V supply. Operating with a rated current of 65.5 Amps, it achieves a maximum flow up to 9180 L\/min and a maximum head up to 45 m. The motor is rated for continuous S1 duty and uses the surrounding media for thermal cooling during operation.\u003c\/p\u003e\u003cp\u003eThe hydraulic system uses an Open S-tube impeller with a 371.2 mm actual diameter for managing untreated wastewater. The nominal duty head is 27.64 m. Featuring a DN 200 inlet and a DN 150 (6\") outlet, this hydraulic design supports high-volume wastewater transfer while reducing the risk of clogging in municipal collection networks.\u003c\/p\u003e\u003cp\u003eBuilt with an EN-GJL-250 cast iron pump housing and motor casing, the pump features double mechanical shaft seals 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 (97695489).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eOpen S-tube impeller design with a 371.2 mm actual diameter for managing untreated wastewater containing solids.\u003c\/li\u003e\n\u003cli\u003eCast iron EN-GJL-250 pump housing and motor casing for structural durability in 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 reliable electrical connection.\u003c\/li\u003e\n\u003cli\u003eIP68 enclosure suitable for installation depths up to 30 metres and 10 bar maximum operating pressure.\u003c\/li\u003e\n\u003cli\u003eCompatible with the Grundfos auto-coupling system (97695489) for simplified maintenance access.\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":50901324464375,"sku":"92955433","price":39852.51,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/grundfos-sl-56h-320-4-50d-150-cast-iron-high-head-wastewater-pump-open-s-tube-impeller.png?v=1782731440","url":"https:\/\/foundationpumps.com.au\/products\/grundfos-sl-56h-320-4-50d-150-cast-iron-high-head-wastewater-pump-open-s-tube-impeller","provider":"Foundation Pumps","version":"1.0","type":"link"}