{"product_id":"grundfos-nb-40-200-188-cast-iron-7-5-kw-end-suction-centrifugal-pump-with-closed-impeller","title":"Grundfos NB 40-200\/188 Cast Iron 7.5 kW End Suction Centrifugal Pump with Closed Impeller","description":"\u003cp\u003eOperating with a 7.5 kW motor rating, the NB 40-200\/188 end-suction centrifugal pump features end-suction axial inlet (DN 65) and top radial outlet (DN 40) connections. The pump is specified for district heating, commercial air conditioning loops, and industrial water distribution.\u003c\/p\u003e\u003cp\u003eThe pump's hydraulic assembly yields 808 L\/Min rated flow volume and a maximum operational head of 36.34 m. Structural strength relies on an EN-GJL-250 cast iron casing with cataphoresis coating. Internal hydraulics feature a stainless steel impeller and BQQE shaft seal. Physical product weight equals 116 kg.\u003c\/p\u003e\u003cp\u003eThe NB 40-200\/188 pump's 415 V three-phase drive motor delivers 7.5 kW power output while drawing 14.3 Amps operating current. The pump accommodates circulating fluid temperatures from -25°C to 120°C under working pressures up to 16 bar. Standardized DN 65 suction and DN 40 discharge ports facilitate line placement.\u003c\/p\u003e\u003cp\u003eAn IP55 enclosure rating protects motor components on the NB 40-200\/188 unit, backed by Class F insulation and built-in PTC thermistor sensors. Scheduled maintenance routines utilize back-pull-out access, enabling motor drive and impeller removal while leaving volute casing flange joints intact.\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":51148676464887,"sku":"93209262","price":5881.15,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/grundfos-nb-40-200-188-cast-iron-7-5-kw-end-suction-centrifugal-pump-with-closed-impeller.png?v=1789124249","url":"https:\/\/foundationpumps.com.au\/products\/grundfos-nb-40-200-188-cast-iron-7-5-kw-end-suction-centrifugal-pump-with-closed-impeller","provider":"Foundation Pumps","version":"1.0","type":"link"}