{"product_id":"grundfos-nb-125-250-220-cast-iron-11-kw-end-suction-centrifugal-pump-with-closed-impeller","title":"Grundfos NB 125-250\/220 Cast Iron 11 kW End Suction Centrifugal Pump with Closed Impeller","description":"\u003cp\u003eMechanical plant cooling circuits and condenser water risers deploy the Grundfos NB 125-250\/220 centrifugal pump. Powered by a 11 kW electric drive, piping connects via an axial DN 150 suction port and a radial DN 125 discharge interface.\u003c\/p\u003e\u003cp\u003eFluid discharge volume delivers approx. 4960 L\/Min maximum throughput alongside a approx. 15.9 m maximum head elevation. 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 247 kg.\u003c\/p\u003e\u003cp\u003eA nominal draw of 22.3 Amps from a 415 V three-phase feed powers the 11 kW motor assembly. Permissible media temperatures range between -25°C to 120°C under system pressures up to 16 bar. Flanged line ports measure DN 150 for suction and DN 125 for discharge.\u003c\/p\u003e\u003cp\u003eMotor housing detailing provides an IP55 ingress rating and Class F winding 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\u003eTotally enclosed fan cooled IEC motor rated for S1 duty cycles in ambient environments up to 40°C.\u003c\/li\u003e\n\u003cli\u003eService-friendly back-pull-out layout enables rotating element servicing without removing pipework.\u003c\/li\u003e\n\u003cli\u003eBalanced impeller geometry and shaft construction reduce operational vibration throughout duty range.\u003c\/li\u003e\n\u003cli\u003eVolute casing design incorporates integral base feet for direct mounting to concrete plinths.\u003c\/li\u003e\n\u003cli\u003eInternal wear rings retain hydraulic clearance tolerances throughout long service cycles.\u003c\/li\u003e\n\u003cli\u003eSolid stub shaft supported by sealed ball bearings carries axial and radial loads.\u003c\/li\u003e\n\u003cli\u003eStandard PN16 flanged port interfaces align with EN1092-2 heating and cooling headers.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":51274514923767,"sku":"93207129","price":11258.34,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/grundfos-nb-125-250-220-cast-iron-11-kw-end-suction-centrifugal-pump-with-closed-impeller.png?v=1791359493","url":"https:\/\/foundationpumps.com.au\/products\/grundfos-nb-125-250-220-cast-iron-11-kw-end-suction-centrifugal-pump-with-closed-impeller","provider":"Foundation Pumps","version":"1.0","type":"link"}