{"product_id":"grundfos-nb-50-160-158-cast-iron-end-suction-centrifugal-pump-with-closed-impeller","title":"Grundfos NB 50-160\/158 Cast Iron 1.1 kW End Suction Centrifugal Pump with Closed Impeller","description":"\u003cp\u003eFacility mechanical plant rooms and primary cooling headers operate with the Grundfos NB 50-160\/158 end-suction pump. Powered by a 1.1 kW electric drive, piping connects via an axial DN 65 suction port and a radial DN 50 discharge interface.\u003c\/p\u003e\u003cp\u003eHydraulic circulation delivers 674 L\/Min rated output with an upper head threshold of 7.35 m. 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 50 kg.\u003c\/p\u003e\u003cp\u003eInput voltage of 415 V three-phase runs the 1.1 kW drive motor with an operating load of 2.34 Amps. Permissible media temperatures range between -25°C to 120°C under system pressures up to 16 bar. Flanged line ports measure DN 65 for suction and DN 50 for discharge.\u003c\/p\u003e\u003cp\u003eEnvironmental casing design incorporates an IP55 rating 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\u003eBack-pull-out arrangement allows fast access to motor and impeller without disturbing pipework.\u003c\/li\u003e\n\u003cli\u003ePrecision balancing of rotating parts delivers quiet, low-vibration fluid transfer.\u003c\/li\u003e\n\u003cli\u003eHeavy-section cast iron volute with integral mounting pads provides solid base support.\u003c\/li\u003e\n\u003cli\u003eReplaceable wear rings protect casing hydraulics and retain designed pumping clearances.\u003c\/li\u003e\n\u003cli\u003eSolid stub shaft and ball bearing arrangement counteracts operating mechanical stresses.\u003c\/li\u003e\n\u003cli\u003eStandardized PN16 dimensions per EN1092-2 align with facility pipe headers.\u003c\/li\u003e\n\u003cli\u003eIEC standardized electric drive rated for continuous S1 operation in ambients up to 40°C.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":51269609586935,"sku":"93209303","price":3802.65,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/grundfos-nb-50-160-158-cast-iron-end-suction-centrifugal-pump-with-closed-impeller.png?v=1791281994","url":"https:\/\/foundationpumps.com.au\/products\/grundfos-nb-50-160-158-cast-iron-end-suction-centrifugal-pump-with-closed-impeller","provider":"Foundation Pumps","version":"1.0","type":"link"}