{"product_id":"grundfos-nb-50-200-219-cast-iron-22-kw-end-suction-centrifugal-pump-with-closed-impeller","title":"Grundfos NB 50-200\/219 Cast Iron 22 kW End Suction Centrifugal Pump with Closed Impeller","description":"\u003cp\u003eThe NB 50-200\/219 end-suction centrifugal pump incorporates a 22 kW electric drive motor connected to DN 65 suction and DN 50 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 1560 L\/Min at a maximum head threshold of 58.26 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 214 kg.\u003c\/p\u003e\u003cp\u003eMotor electrical configuration on the NB 50-200\/219 pump requires a 415 V three-phase connection rated at 22 kW output power. Operating current measures 40.8 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 50 outlet flanges.\u003c\/p\u003e\u003cp\u003eMotor security on the NB 50-200\/219 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\u003eBall bearing support arrangement accommodates both radial and axial thrust loads generated during continuous duty operation at rated speed.\u003c\/li\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\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":51148679282935,"sku":"93209314","price":9785.71,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/grundfos-nb-50-200-219-cast-iron-22-kw-end-suction-centrifugal-pump-with-closed-impeller.png?v=1789124286","url":"https:\/\/foundationpumps.com.au\/products\/grundfos-nb-50-200-219-cast-iron-22-kw-end-suction-centrifugal-pump-with-closed-impeller","provider":"Foundation Pumps","version":"1.0","type":"link"}