{"product_id":"grundfos-nb-65-160-173-cast-iron-15-kw-end-suction-centrifugal-pump-with-closed-impeller","title":"Grundfos NB 65-160\/173 Cast Iron 15 kW End Suction Centrifugal Pump with Closed Impeller","description":"\u003cp\u003eFeaturing an end-suction structural layout with DN 80 axial suction and DN 65 radial discharge ports, the NB 65-160\/173 pump processes clean liquid media across active HVAC circuits. Powered by a 15 kW electric motor, the system operates across continuous commercial pumping cycles.\u003c\/p\u003e\u003cp\u003eThe hydraulic wet-end achieves a rated flow capacity of 1927 L\/Min with a maximum head rating of 34.86 m. Cast iron housing materials provide solid pressure containment up to 16 bar. The internal assembly houses a stainless steel impeller fitted with bronze wear rings. Net equipment weight is 151 kg.\u003c\/p\u003e\u003cp\u003ePower specifications for the NB 65-160\/173 end-suction pump call for a 415 V three-phase electrical supply rated at 15 kW motor power. Current draw under load measures 29.1 Amps. Operating fluid temperatures span -25°C to 120°C with a maximum working pressure rating of 16 bar. The housing features DN 80 axial suction and DN 65 radial discharge ports.\u003c\/p\u003e\u003cp\u003eThe NB 65-160\/173 electric motor carries an IP55 ingress protection rating alongside Class F thermal insulation and integrated PTC thermistors. System maintenance relies on back-pull-out architecture, enabling drive head disassembly while the pump volute stays secured to concrete foundation bases and pipe runs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\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\u003cli\u003eIntegrally cast suction and discharge ports with dedicated vent and drain ports provide direct connection points without additional fittings.\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":51148680823031,"sku":"93209336","price":7968.07,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/grundfos-nb-65-160-173-cast-iron-15-kw-end-suction-centrifugal-pump-with-closed-impeller.png?v=1789124307","url":"https:\/\/foundationpumps.com.au\/products\/grundfos-nb-65-160-173-cast-iron-15-kw-end-suction-centrifugal-pump-with-closed-impeller","provider":"Foundation Pumps","version":"1.0","type":"link"}