{"product_id":"grundfos-nb-100-315-334-cast-iron-30-kw-end-suction-centrifugal-pump-with-closed-impeller","title":"Grundfos NB 100-315\/334 Cast Iron 30 kW End Suction Centrifugal Pump with Closed Impeller","description":"\u003cp\u003eCentral heating circulation skids and building hydronic lines feature the Grundfos NB 100-315\/334 end-suction pump. Coupled to a 30 kW motor drive, fluid enters through an axial DN 125 suction port and exits through a radial DN 100 discharge flange.\u003c\/p\u003e\u003cp\u003eHydraulic flow parameter attains approx. 4184 L\/Min operational circulation and overcomes approx. 40.3 m maximum head. Constructed with an EN-GJL-250 cast iron volute protected by cataphoretic electrocoating, internal hydraulics feature a stainless steel impeller and BQQE mechanical shaft seal. Net weight is 374 kg.\u003c\/p\u003e\u003cp\u003eElectrical supply across 415 V three-phase powers the drive with an operating current of 57.9 Amps for 30 kW. Working tolerances accommodate fluid temperatures spanning -25°C to 120°C at pressures reaching 16 bar. Flanged connections feature DN 125 inlet and DN 100 outlet dimensions.\u003c\/p\u003e\u003cp\u003eEnvironmental frame architecture meets IP55 protection criteria with Class F motor insulation. Because built-in thermal protection is not included, external motor overload protection must be supplied. Maintenance is streamlined via a back-pull-out arrangement allowing rotating element removal while the casing remains connected to piping.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEN1092-2 flanged connections conform to standard PN16 pipework dimensions.\u003c\/li\u003e\n\u003cli\u003eContinuous duty S1 rated electric drive motor operates in ambient temperatures up to 40°C.\u003c\/li\u003e\n\u003cli\u003eBack-pull-out layout permits motor and impeller servicing without breaking pipe connections.\u003c\/li\u003e\n\u003cli\u003eIntegral casing support feet provide direct anchoring to plant room inertia bases and plinths.\u003c\/li\u003e\n\u003cli\u003ePrecision balanced rotating components reduce hydraulic noise and mechanical shaft deflection.\u003c\/li\u003e\n\u003cli\u003eRenewable casing wear rings retain pump efficiency and avoid direct volute casing wear.\u003c\/li\u003e\n\u003cli\u003eSolid shaft assembly with sealed ball bearings absorbs operational hydraulic and radial forces.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":51274514137335,"sku":"93207128","price":16556.05,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/grundfos-nb-100-315-334-cast-iron-30-kw-end-suction-centrifugal-pump-with-closed-impeller.png?v=1791359490","url":"https:\/\/foundationpumps.com.au\/products\/grundfos-nb-100-315-334-cast-iron-30-kw-end-suction-centrifugal-pump-with-closed-impeller","provider":"Foundation Pumps","version":"1.0","type":"link"}