{"product_id":"grundfos-magna1-25-80-cast-iron-variable-speed-circulator-pump-heat-pump-systems-composite-impeller","title":"Grundfos MAGNA1 25-80 Cast Iron Variable Speed Circulator Pump for Heat Pump Systems with Composite Impeller","description":"\u003cp\u003eTargeting systems with higher pipe resistance, the Grundfos MAGNA1 25-80 circulator pump provides electronically controlled variable flow for heat pump secondary loops and multi-storey heating circuits. Its internal variable frequency drive matches pump output to variable heating loads.\u003c\/p\u003e\n\u003cp\u003eManufactured from EN-GJL-200 cast iron, the 180 mm port-to-port casing holds a precision composite impeller and air-cooled electronic power module. The assembly is rated for 10 bar working pressure and circulating temperatures from -10°C to 110°C, weighing 4.41 kg.\u003c\/p\u003e\n\u003cp\u003eThe 1 x 230-240 V 50\/60 Hz permanent magnet motor has a maximum power input (P1) of 9 W to 128 W while electrical input power (P1) draws between 9 W and 128 W with a maximum current of 1.03 A. The hydraulic section produces a flow of 5.09 m³\/h (85 L\/Min) against a maximum head of 5.113 m connected via 1 1\/2 inch threaded ports.\u003c\/p\u003e\n\u003cp\u003eControl options include three proportional pressure settings, three constant pressure curves, and three constant speeds. Certified to an Energy Efficiency Index of 0.20 with Class F insulation and an IPX4D enclosure, the pump includes digital start\/stop terminals and a fault alarm output.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGenerates 8 m maximum head to overcome elevated friction in zoned circuits\u003c\/li\u003e\n\u003cli\u003ePermanent magnet motor and integrated inverter deliver an EEI rating of 0.20\u003c\/li\u003e\n\u003cli\u003eOperating power self-adjusts between 9 W and 128 W according to heat demand\u003c\/li\u003e\n\u003cli\u003eCast iron EN-GJL-200 pump body engineered for 10 bar system pressure rating\u003c\/li\u003e\n\u003cli\u003eComposite impeller resists chemical attack in water-glycol heating mixtures\u003c\/li\u003e\n\u003cli\u003eIntegrated fault relay and remote run\/stop input simplify BMS wiring\u003c\/li\u003e\n\u003cli\u003e180 mm port-to-port length with standard 1 1\/2 inch threaded union fittings\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":51139436445943,"sku":"99221213","price":1690.81,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/grundfos-magna1-25-80-cast-iron-variable-speed-circulator-pump-heat-pump-systems-composite-impeller.png?v=1789019341","url":"https:\/\/foundationpumps.com.au\/products\/grundfos-magna1-25-80-cast-iron-variable-speed-circulator-pump-heat-pump-systems-composite-impeller","provider":"Foundation Pumps","version":"1.0","type":"link"}