{"product_id":"grundfos-nb-80-250-244-cast-iron-7-5-kw-end-suction-centrifugal-pump-with-closed-impeller","title":"Grundfos NB 80-250\/244 Cast Iron 7.5 kW End Suction Centrifugal Pump with Closed Impeller","description":"\u003cp\u003ePlant utility room water lines and primary heating loops rely on the Grundfos NB 80-250\/244 end-suction pump. Driven by an electric 7.5 kW motor assembly, the pump incorporates an axial DN 100 suction port and a radial DN 80 discharge connection.\u003c\/p\u003e\u003cp\u003eHydraulic throughput output attains approx. 2080 L\/Min fluid delivery and overcomes up to approx. 21.9 m head. The pump housing is cast in EN-GJL-250 iron with cataphoretic electrocoating. Fluid displacement is driven by a stainless steel impeller and a BQQE mechanical shaft seal. Net product weight measures 166 kg.\u003c\/p\u003e\u003cp\u003eElectric power delivery from a 415 V three-phase source provides 14.6 Amps to deliver 7.5 kW output. Operational limits permit media temperatures from -25°C to 120°C under working pressures up to 16 bar. Flanged pipe connections measure DN 100 on the inlet and DN 80 on the outlet.\u003c\/p\u003e\u003cp\u003eDrive casing engineering meets IP55 protection standards, utilizing Class F insulation. Standard IEC electric drive design requires external motor overload protection. The back-pull-out structural layout permits complete motor and rotating assembly extraction without disconnecting piping headers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eRenewable casing wear rings retain pump efficiency and avoid direct volute casing wear.\u003c\/li\u003e\n\u003cli\u003eSolid shaft assembly with sealed ball bearings absorbs operational hydraulic and radial forces.\u003c\/li\u003e\n\u003cli\u003eEN1092-2 flanged connections conform to standard PN16 pipework dimensions.\u003c\/li\u003e\n\u003cli\u003eContinuous duty S1 rated electric drive motor operates in ambient temperatures up to 40°C.\u003c\/li\u003e\n\u003cli\u003eBack-pull-out layout permits motor and impeller servicing without breaking pipe connections.\u003c\/li\u003e\n\u003cli\u003eIntegral casing support feet provide direct anchoring to plant room inertia bases and plinths.\u003c\/li\u003e\n\u003cli\u003ePrecision balanced rotating components reduce hydraulic noise and mechanical shaft deflection.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":51274497655031,"sku":"93209373","price":8687.09,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/grundfos-nb-80-250-244-cast-iron-7-5-kw-end-suction-centrifugal-pump-with-closed-impeller.png?v=1791359439","url":"https:\/\/foundationpumps.com.au\/products\/grundfos-nb-80-250-244-cast-iron-7-5-kw-end-suction-centrifugal-pump-with-closed-impeller","provider":"Foundation Pumps","version":"1.0","type":"link"}