{"product_id":"grundfos-nb-65-160-143-cast-iron-7-5-kw-end-suction-centrifugal-pump-with-closed-impeller","title":"Grundfos NB 65-160\/143 Cast Iron 7.5 kW End Suction Centrifugal Pump with Closed Impeller","description":"\u003cp\u003eThe NB 65-160\/143 end-suction centrifugal pump incorporates a 7.5 kW electric drive motor connected to DN 80 suction and DN 65 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 1707 L\/Min at a maximum head threshold of 20.72 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 116 kg.\u003c\/p\u003e\u003cp\u003eMotor electrical configuration on the NB 65-160\/143 pump requires a 415 V three-phase connection rated at 7.5 kW output power. Operating current measures 14.3 Amps at nominal speed. Liquid temperature ranges extend from -25°C to 120°C under 16 bar pressure. Connection is made via DN 80 inlet and DN 65 outlet flanges.\u003c\/p\u003e\u003cp\u003eMotor security on the NB 65-160\/143 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\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\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\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":51148680560887,"sku":"93209332","price":6313.12,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/grundfos-nb-65-160-143-cast-iron-7-5-kw-end-suction-centrifugal-pump-with-closed-impeller.png?v=1789124304","url":"https:\/\/foundationpumps.com.au\/products\/grundfos-nb-65-160-143-cast-iron-7-5-kw-end-suction-centrifugal-pump-with-closed-impeller","provider":"Foundation Pumps","version":"1.0","type":"link"}