{"product_id":"grundfos-magna1-25-100-cast-iron-variable-speed-circulator-pump-cooling-systems-composite-impeller","title":"Grundfos MAGNA1 25-100 Cast Iron Variable Speed Circulator Pump for Cooling Systems with Composite Impeller","description":"\u003cp\u003eCapable of developing 6.353 m of head, the Grundfos MAGNA1 25-100 circulator pump serves multi-zone heating systems, long distribution runs, and high-resistance fan coil circuits. It automatically modulates hydraulic performance to deliver balanced circulation as zone valves cycle.\u003c\/p\u003e\n\u003cp\u003eA cast iron EN-GJL-200 housing with a 180 mm face-to-face dimension encloses a composite impeller and maintenance-free canned rotor motor. Rated for 10 bar working pressure and liquid temperatures from -10°C to 110°C, the complete unit weighs 4.41 kg.\u003c\/p\u003e\n\u003cp\u003eThe single-phase 230-240 V ECM motor has a maximum power input (P1) of 9 W to 176 W and operates from 9 W to a maximum electrical power input (P1) of 176 W at 1.42 A. Hydraulic delivery achieves a flow rate of 5.68 m³\/h (95 L\/Min) with a maximum head of 10 m through 1 1\/2 inch threaded connections.\u003c\/p\u003e\n\u003cp\u003eThe user interface provides single-button setup across nine operational modes covering proportional, constant pressure, and fixed speed curves. The motor features Class F insulation, IPX4D ingress protection, an EEI of 0.20, and built-in fault signal monitoring.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e10 m maximum head accommodates extensive commercial zoned heating layouts\u003c\/li\u003e\n\u003cli\u003eEnergy Efficiency Index of 0.20 reflects permanent magnet ECM motor design\u003c\/li\u003e\n\u003cli\u003eOperating power automatically varies from 9 W to 176 W based on circuit resistance\u003c\/li\u003e\n\u003cli\u003eCast iron EN-GJL-200 pump casing rated for 10 bar maximum system pressure\u003c\/li\u003e\n\u003cli\u003eComposite impeller provides long service life in closed hydronic systems\u003c\/li\u003e\n\u003cli\u003eDigital run\/stop input and fault alarm relay serve BMS supervisory control\u003c\/li\u003e\n\u003cli\u003eStandard 180 mm port-to-port body with 1 1\/2 inch threaded pipe connections\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":51139437658359,"sku":"99221214","price":1872.64,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/grundfos-magna1-25-100-cast-iron-variable-speed-circulator-pump-cooling-systems-composite-impeller.png?v=1789019342","url":"https:\/\/foundationpumps.com.au\/products\/grundfos-magna1-25-100-cast-iron-variable-speed-circulator-pump-cooling-systems-composite-impeller","provider":"Foundation Pumps","version":"1.0","type":"link"}