{"product_id":"grundfos-nb-100-200-177-cast-iron-4-kw-end-suction-centrifugal-pump-with-closed-impeller","title":"Grundfos NB 100-200\/177 Cast Iron 4 kW End Suction Centrifugal Pump with Closed Impeller","description":"\u003cp\u003ePrimary water circulation skids and central heating lines feature the Grundfos NB 100-200\/177 end-suction pump. Coupled to a 4 kW motor drive, fluid enters through an axial DN 125 suction port and exits through a radial DN 100 discharge flange.\u003c\/p\u003e\u003cp\u003eLiquid transfer rating provides approx. 2899 L\/Min fluid displacement across a maximum head of approx. 10.2 m. Constructed with an EN-GJL-250 cast iron volute protected by cataphoretic electrocoating, internal hydraulics feature a stainless steel impeller and BQQE mechanical shaft seal. Net weight is 118 kg.\u003c\/p\u003e\u003cp\u003eThe dedicated feed at 415 V three-phase delivers power to the 4 kW motor, drawing 8.47 Amps full-load current. Working tolerances accommodate fluid temperatures spanning -25°C to 120°C at pressures reaching 16 bar. Flanged connections feature DN 125 inlet and DN 100 outlet dimensions.\u003c\/p\u003e\u003cp\u003eThe motor assembly provides IP55 enclosure protection with Class F electrical insulation. Because built-in thermal protection is not included, external motor overload protection must be supplied. Maintenance is streamlined via a back-pull-out arrangement allowing rotating element removal while the casing remains connected to piping.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\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\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\u003c\/ul\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":51274504765687,"sku":"93207099","price":7080.76,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/grundfos-nb-100-200-177-cast-iron-4-kw-end-suction-centrifugal-pump-with-closed-impeller.png?v=1791359458","url":"https:\/\/foundationpumps.com.au\/products\/grundfos-nb-100-200-177-cast-iron-4-kw-end-suction-centrifugal-pump-with-closed-impeller","provider":"Foundation Pumps","version":"1.0","type":"link"}