{"product_id":"grundfos-nb-32-200-176-cast-iron-4-kw-end-suction-centrifugal-pump-with-closed-impeller","title":"Grundfos NB 32-200\/176 Cast Iron 4 kW End Suction Centrifugal Pump with Closed Impeller","description":"\u003cp\u003eDriven by a 4 kW electric motor, the NB 32-200\/176 end-suction centrifugal pump features an axial suction port (DN 50) and a radial discharge port (DN 32). Specified for commercial HVAC circulation, district heating installations, and industrial process water distribution, the pump mounts securely onto floor inertia bases in mechanical plant rooms.\u003c\/p\u003e\u003cp\u003eHydraulic wet-end output delivers a rated flow volume of 458 L\/Min with a maximum operational head limit of 29.5 m. The EN-GJL-250 cast iron casing receives cataphoresis electrocoating to limit surface oxidation. Inside, a stainless steel impeller works alongside bronze wear rings and a BQQE shaft seal. Physical net weight measures 73 kg.\u003c\/p\u003e\u003cp\u003eElectrical power for the NB 32-200\/176 model is supplied by a 415 V three-phase electric motor rated at 4 kW output power. Nominal operating current draw measures 7.82 Amps during full load operations. Operating liquid temperatures span from -25°C to 120°C under 16 bar working pressure. Suction inlet measures DN 50 with a DN 32 discharge port.\u003c\/p\u003e\u003cp\u003eMotor protection on the NB 32-200\/176 pump complies with IP55 enclosure standards to resist dust and moisture ingress, supported by Class F thermal insulation and internal PTC thermistors. The back-pull-out casing layout allows service personnel to remove the motor drive and rotor assembly without unbolting the pump volute from system suction and discharge piping headers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNo baseplate or grouting required to maintain correct shaft alignment and vibration levels within Hydraulic Institute standards.\u003c\/li\u003e\n\u003cli\u003eCataphoretic electrocoating on cast iron internal surfaces provides barrier protection against oxidative corrosion in hydronic circulation loops.\u003c\/li\u003e\n\u003cli\u003eClose-coupled configuration eliminates coupling alignment procedures and reduces overall installation footprint compared to long-coupled alternatives.\u003c\/li\u003e\n\u003cli\u003eBall bearing support arrangement accommodates both radial and axial thrust loads generated during continuous duty operation at rated speed.\u003c\/li\u003e\n\u003cli\u003ePN16 flanged connection ratings on sizes up to and including DN 150 provide elevated working pressure capability beyond standard EN733 10 bar ratings.\u003c\/li\u003e\n\u003cli\u003eO-ring seal between pump housing and cover eliminates leakage risk at the volute-to-cover joint under sustained operating pressures.\u003c\/li\u003e\n\u003cli\u003eOptimised impeller and volute hydraulics deliver unimpeded liquid flow through the pump casing, reducing internal turbulence losses.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIMPORTANT:\u003c\/strong\u003eBulk freight charges apply. Please contact us for a freight quote before ordering.\u003c\/p\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":51148674859255,"sku":"93208696","price":4723.62,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/grundfos-nb-32-200-176-cast-iron-4-kw-end-suction-centrifugal-pump-with-closed-impeller.png?v=1789124227","url":"https:\/\/foundationpumps.com.au\/products\/grundfos-nb-32-200-176-cast-iron-4-kw-end-suction-centrifugal-pump-with-closed-impeller","provider":"Foundation Pumps","version":"1.0","type":"link"}