{"product_id":"grundfos-magna1-50-100-f-cast-iron-variable-speed-circulator-pump-heat-pump-systems-composite-impeller","title":"Grundfos MAGNA1 50-100 F Cast Iron Variable Speed Circulator Pump for Heat Pump Systems with Composite Impeller","description":"\u003cp\u003eDeveloping 5.383 m of head at flow rates nearing 300 L\/Min, the Grundfos MAGNA1 50-100 F circulator pump is specified for large commercial HVAC plants, central heating headers, and district cooling loops. It automatically balances pressure across extensive multi-zone building distributions.\u003c\/p\u003e\n\u003cp\u003eThe 280 mm port-to-port casing is manufactured from EN-GJL-200 cast iron, housing a composite impeller, stainless rotor can, and air-cooled electronic power module. Rated for 10 bar working pressure, it accommodates fluid temperatures from -10°C to 110°C with a net weight of 17.9 kg.\u003c\/p\u003e\n\u003cp\u003eOperating on a 1-phase 230-240 V 50\/60 Hz supply, the ECM motor has a maximum power input (P1) of 21 W to 425 W while electrical input power (P1) draws between 21 W and 425 W at 1.90 A maximum current. Output metrics reach a calculated flow rate of 17.73 m³\/h (296 L\/Min) with a maximum head of 10 m across DN 50 DIN flanged ports.\u003c\/p\u003e\n\u003cp\u003eControl options encompass three proportional pressure curves, three constant pressure curves, and three constant speed steps. The pump meets an EEI rating of 0.19, provides Class F winding insulation inside an IPX4D housing, and includes digital input and fault relay contacts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGenerates 10 m maximum head and 296 L\/Min flow for central commercial headers\u003c\/li\u003e\n\u003cli\u003eECM permanent magnet motor with integrated inverter achieves an EEI rating of 0.19\u003c\/li\u003e\n\u003cli\u003eSelf-regulating power input ranges from 21 W to 425 W depending on valve positions\u003c\/li\u003e\n\u003cli\u003eCast iron EN-GJL-200 housing engineered for 10 bar maximum system pressure\u003c\/li\u003e\n\u003cli\u003eComposite impeller provides longevity in treated water and glycol mixtures\u003c\/li\u003e\n\u003cli\u003eDigital start\/stop terminals and fault relay output facilitate BMS interlocks\u003c\/li\u003e\n\u003cli\u003eStandard 280 mm port-to-port dimension with DN 50 PN 6\/10 flange holes\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":51139462529271,"sku":"99221335","price":4228.07,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/grundfos-magna1-50-100-f-cast-iron-variable-speed-circulator-pump-heat-pump-systems-composite-impeller.png?v=1789019380","url":"https:\/\/foundationpumps.com.au\/products\/grundfos-magna1-50-100-f-cast-iron-variable-speed-circulator-pump-heat-pump-systems-composite-impeller","provider":"Foundation Pumps","version":"1.0","type":"link"}