{"product_id":"grundfos-alpha2-25-60-cast-iron-autoadapt-circulator-pump-180mm-with-composite-impeller","title":"Grundfos Alpha2 25-60 Cast Iron AUTOADAPT Circulator Pump 180mm with Composite Impeller","description":"\u003cp\u003eOlder heating installations or systems specified with wider valve centres require a longer pump body than the compact Alpha2 variant provides. The Grundfos Alpha2 25-60 180 fills that role while retaining the same AUTOADAPT self-adjustment, built for domestic radiator circuits where pipe spacing rules out the shorter 130 mm model.\u003c\/p\u003e\r\n\u003cp\u003ePeak output reaches 32.3 L\/Min against a maximum head of 6 m, drawn from a 34 W motor with current consumption automatically adjusting between 0.04 A and 0.32 A on a 1 x 240 V supply as the pump continuously tracks system resistance. The same 0.17 Energy Efficiency Index applies as the 130 mm version.\u003c\/p\u003e\r\n\u003cp\u003eRather than stepping between fixed speeds, output adjusts continuously to match actual heating demand, with an automatic reduced night-time duty mode lowering consumption further during low-flow overnight periods based on detected system behaviour. The cast iron housing and composite impeller suit closed-loop radiator circuits, with liquid temperatures supported from 2°C to 110°C.\u003c\/p\u003e\r\n\u003cp\u003eAt 180 mm port-to-port with 1 1\/2 inch connections, the pump directly replaces older fixed-speed circulators of the same body length without requiring pipework modification. An IPX4D enclosure and Class F insulation complete the specification.\u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eAUTOADAPT function provides continuous self-adjusting speed control without manual intervention\u003c\/li\u003e\r\n\u003cli\u003eAutomatic reduced night-time duty mode lowers consumption during low-flow overnight periods, detected from system behaviour\u003c\/li\u003e\r\n\u003cli\u003eElectronically commutated motor achieves an Energy Efficiency Index of 0.17\u003c\/li\u003e\r\n\u003cli\u003eCurrent consumption self-adjusts from 0.04 A to 0.32 A as the pump continuously tracks system resistance\u003c\/li\u003e\r\n\u003cli\u003eExtended 180 mm port-to-port body dimension accommodates wider valve spacing\u003c\/li\u003e\r\n\u003cli\u003eCast iron housing specified for closed-loop radiator circuits where potable water approval is not required\u003c\/li\u003e\r\n\u003cli\u003eComposite impeller construction delivers consistent hydraulic performance in closed-loop heating applications\u003c\/li\u003e\r\n\u003cli\u003eIPX4D enclosure rating provides ingress protection against splashing water and dust\u003c\/li\u003e\r\n\u003c\/ul\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":50978282766583,"sku":"99411175","price":775.55,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/grundfos-alpha2-25-60-cast-iron-autoadapt-circulator-pump-180mm-with-composite-impeller.png?v=1785223234","url":"https:\/\/foundationpumps.com.au\/products\/grundfos-alpha2-25-60-cast-iron-autoadapt-circulator-pump-180mm-with-composite-impeller","provider":"Foundation Pumps","version":"1.0","type":"link"}