{"product_id":"grundfos-nb-100-250-274-cast-iron-15-kw-end-suction-centrifugal-pump-with-closed-impeller","title":"Grundfos NB 100-250\/274 Cast Iron 15 kW End Suction Centrifugal Pump with Closed Impeller","description":"\u003cp\u003ePlant hydronic heating circuits and boiler manifolds deploy the Grundfos NB 100-250\/274 end-suction pump. Powered by a 15 kW electric drive, piping connects via an axial DN 125 suction port and a radial DN 100 discharge interface.\u003c\/p\u003e\u003cp\u003eHydraulic output parameter provides approx. 3848 L\/Min fluid displacement against a approx. 25.9 m head threshold. A cataphoretically coated EN-GJL-250 cast iron casing houses the precision stainless steel impeller and BQQE mechanical shaft seal. Total net product weight measures 231 kg.\u003c\/p\u003e\u003cp\u003eAn operating draw of 28.7 Amps powers the 15 kW motor from a 415 V three-phase line connection. Permissible media temperatures range between -25°C to 120°C under system pressures up to 16 bar. Flanged line ports measure DN 125 for suction and DN 100 for discharge.\u003c\/p\u003e\u003cp\u003eEnclosure sealing design satisfies IP55 ingress standards with Class F electrical insulation. The motor requires external overload protection in the electrical control panel. A back-pull-out mechanical design enables service personnel to extract the impeller and drive assembly without dismantling pipe flanges.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\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\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\u003c\/ul\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":51274508599543,"sku":"93207124","price":11201.3,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/grundfos-nb-100-250-274-cast-iron-15-kw-end-suction-centrifugal-pump-with-closed-impeller.png?v=1791359477","url":"https:\/\/foundationpumps.com.au\/products\/grundfos-nb-100-250-274-cast-iron-15-kw-end-suction-centrifugal-pump-with-closed-impeller","provider":"Foundation Pumps","version":"1.0","type":"link"}