{"product_id":"grundfos-nb-50-160-131-cast-iron-end-suction-centrifugal-pump-with-closed-impeller","title":"Grundfos NB 50-160\/131 Cast Iron 0.55 kW End Suction Centrifugal Pump with Closed Impeller","description":"\u003cp\u003eCentral cooling headers and evaporative condenser skids feature the Grundfos NB 50-160\/131 end-suction pump. Driven by an electric 0.55 kW motor assembly, the pump incorporates an axial DN 65 suction port and a radial DN 50 discharge connection.\u003c\/p\u003e\u003cp\u003eOperational pumping volume achieves 519 L\/Min rated delivery against a 4.603 m maximum head. The pump housing is cast in EN-GJL-250 iron with cataphoretic electrocoating. Fluid displacement is driven by a stainless steel impeller and a BQQE mechanical shaft seal. Net product weight measures 41 kg.\u003c\/p\u003e\u003cp\u003eConfigured for a 415 V three-phase supply, the motor consumes 1.23 Amps rated current for 0.55 kW shaft power. Operational limits permit media temperatures from -25°C to 120°C under working pressures up to 16 bar. Flanged pipe connections measure DN 65 on the inlet and DN 50 on the outlet.\u003c\/p\u003e\u003cp\u003eEnclosure engineering satisfies IP55 protection standards alongside Class F insulation. Standard IEC electric drive design requires external motor overload protection. The back-pull-out structural layout permits complete motor and rotating assembly extraction without disconnecting piping headers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\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\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\u003c\/ul\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":51269608440055,"sku":"93209299","price":3591.34,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/grundfos-nb-50-160-131-cast-iron-end-suction-centrifugal-pump-with-closed-impeller.png?v=1791281989","url":"https:\/\/foundationpumps.com.au\/products\/grundfos-nb-50-160-131-cast-iron-end-suction-centrifugal-pump-with-closed-impeller","provider":"Foundation Pumps","version":"1.0","type":"link"}