{"product_id":"grundfos-nb-50-160-177-cast-iron-2-2-kw-end-suction-centrifugal-pump-with-closed-impeller","title":"Grundfos NB 50-160\/177 Cast Iron 2.2 kW End Suction Centrifugal Pump with Closed Impeller","description":"\u003cp\u003eBasement pump stations and primary hydronic risers rely on the Grundfos NB 50-160\/177 end-suction pump. Fitted with a 2.2 kW motor, system piping interfaces through an axial DN 65 suction port and a radial DN 50 discharge flange.\u003c\/p\u003e\u003cp\u003ePumping output delivers 762 L\/Min volumetric throughput and attains 9.304 m maximum head elevation. Housing construction features cataphoretically coated EN-GJL-250 cast iron, accommodating a stainless steel impeller and a BQQE mechanical seal. Net weight measures 64 kg.\u003c\/p\u003e\u003cp\u003eMotor performance under 415 V three-phase power draws 4.5 Amps to yield 2.2 kW drive output. Fluid temperature capabilities range from -25°C to 120°C under working pressure limits up to 16 bar. Flange interfaces are dimensioned at DN 65 inlet and DN 50 outlet.\u003c\/p\u003e\u003cp\u003eThe drive motor incorporates IP55 ingress protection and Class F temperature insulation. External motor overload protection must be provided by the installer. The back-pull-out construction allows extraction of the motor and rotating components without disturbing suction or discharge pipe connections.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\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\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\u003c\/ul\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":51269610569975,"sku":"93209307","price":4068.19,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/grundfos-nb-50-160-177-cast-iron-2-2-kw-end-suction-centrifugal-pump-with-closed-impeller.png?v=1791281999","url":"https:\/\/foundationpumps.com.au\/products\/grundfos-nb-50-160-177-cast-iron-2-2-kw-end-suction-centrifugal-pump-with-closed-impeller","provider":"Foundation Pumps","version":"1.0","type":"link"}