{"product_id":"grundfos-nb-40-125-116-cast-iron-2-2-kw-end-suction-centrifugal-pump-with-closed-impeller","title":"Grundfos NB 40-125\/116 Cast Iron 2.2 kW End Suction Centrifugal Pump with Closed Impeller","description":"\u003cp\u003eThe NB 40-125\/116 end-suction centrifugal pump incorporates a 2.2 kW electric drive motor connected to DN 65 suction and DN 40 discharge flanged piping joints. Designed for continuous building service duty, the unit handles clean fluid movement across commercial plant installations.\u003c\/p\u003e\u003cp\u003eHydraulic rating calculations confirm a flow capacity of 701 L\/Min at a maximum head threshold of 12.23 m. The volute housing is constructed from cataphoresis treated cast iron. Rotor hydraulics feature a stainless steel impeller supported by bronze wear rings. Total net weight measures 50 kg.\u003c\/p\u003e\u003cp\u003eMotor electrical configuration on the NB 40-125\/116 pump requires a 415 V three-phase connection rated at 2.2 kW output power. Operating current measures 7.56 Amps at nominal speed. Liquid temperature ranges extend from -25°C to 120°C under 16 bar pressure. Connection is made via DN 65 inlet and DN 40 outlet flanges.\u003c\/p\u003e\u003cp\u003eMotor security on the NB 40-125\/116 end-suction pump features an IP55 rated housing, Class F thermal insulation, and PTC thermistor winding relays. The back-pull-out structural geometry permits technicians to remove the motor drive and rotor without dismantling connected suction or discharge pipe headers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAll stainless steel shaft construction provides improved corrosion resistance compared to carbon steel alternatives in wetted service areas.\u003c\/li\u003e\n\u003cli\u003eMechanical shaft seal can be replaced without removing the impeller, system piping, pump volute casing or drive motor from the installation.\u003c\/li\u003e\n\u003cli\u003eHousing, impeller and wear ring use dissimilar material pairings to prevent galling and ensure no sticking elements during extended standby periods.\u003c\/li\u003e\n\u003cli\u003eHigh-efficiency motor selection is configured to match the specific power supply characteristics, pumping environment and liquid properties of each installation.\u003c\/li\u003e\n\u003cli\u003eBack pull-out design allows complete rotating assembly removal including motor, coupling and impeller without disturbing pump housing or connected pipework.\u003c\/li\u003e\n\u003cli\u003eEN733 and ISO2858 dimensional compliance ensures interchangeability with other standard end-suction pumps across commercial and industrial installations.\u003c\/li\u003e\n\u003cli\u003eATEX Zone 1, 2, 21 or 22 certification available for operation in potentially explosive atmospheres (except E-model variants).\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":51148675416311,"sku":"93209204","price":3422.1,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/grundfos-nb-40-125-116-cast-iron-2-2-kw-end-suction-centrifugal-pump-with-closed-impeller.png?v=1789124235","url":"https:\/\/foundationpumps.com.au\/products\/grundfos-nb-40-125-116-cast-iron-2-2-kw-end-suction-centrifugal-pump-with-closed-impeller","provider":"Foundation Pumps","version":"1.0","type":"link"}