{"product_id":"grundfos-nb-40-315-283-cast-iron-3-kw-end-suction-centrifugal-pump-with-closed-impeller","title":"Grundfos NB 40-315\/283 Cast Iron 3 kW End Suction Centrifugal Pump with Closed Impeller","description":"\u003cp\u003ePlant room mechanical piping and hydronic circulation lines feature the Grundfos NB 40-315\/283 end-suction pump. Fitted with a 3 kW motor, system piping interfaces through an axial DN 65 suction port and a radial DN 40 discharge flange.\u003c\/p\u003e\u003cp\u003eRated pumping capacity provides 329 L\/Min liquid displacement with a 19.08 m maximum developed head. Housing construction features cataphoretically coated EN-GJL-250 cast iron, accommodating a stainless steel impeller and a BQQE mechanical seal. Net weight measures 125 kg.\u003c\/p\u003e\u003cp\u003eThree-phase 415 V power powers the 3 kW electric motor with an operating current of 6.23 Amps. 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 40 outlet.\u003c\/p\u003e\u003cp\u003eEnvironmental sealing achieves an IP55 enclosure rating with Class F winding 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\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\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\u003c\/ul\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":51269604868343,"sku":"93209284","price":7180.8,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/grundfos-nb-40-315-283-cast-iron-3-kw-end-suction-centrifugal-pump-with-closed-impeller.png?v=1791281974","url":"https:\/\/foundationpumps.com.au\/products\/grundfos-nb-40-315-283-cast-iron-3-kw-end-suction-centrifugal-pump-with-closed-impeller","provider":"Foundation Pumps","version":"1.0","type":"link"}