{"product_id":"grundfos-ups-25-60-cast-iron-three-speed-circulator-pump-for-radiator-heating","title":"Grundfos UPS 25-60 Cast Iron Three Speed Circulator Pump for Radiator Heating with Composite Impeller","description":"\u003cp\u003eClosed-loop radiator heating systems do not carry potable water, so cast iron becomes a suitable housing material. The Grundfos UPS 25-60 is built with a cast iron pump body for those systems, positioned for standard domestic heating circuits where the circulating fluid stays within the sealed system.\u003c\/p\u003e\r\n\u003cp\u003eAt its highest speed setting, the pump delivers 31.7 L\/Min against a maximum head of 6 m, powered by a 70 W motor drawing 0.3 A on a 1 x 240 V supply. Three selectable speeds step power from 50 W upward, giving installers the flexibility to balance the circuit against the actual radiator count and pipe run without oversizing the pump.\u003c\/p\u003e\r\n\u003cp\u003eThe canned rotor motor construction removes the need for a mechanical shaft seal, with the rotor and bearings lubricated directly by the circulating heating water. Liquid temperature tolerance extends from 2°C to 110°C, covering both standard radiator circuits and higher-temperature boiler setups.\u003c\/p\u003e\r\n\u003cp\u003eAn IP44 enclosure suits undercover fitting in a plant room or airing cupboard, and the compact 130 mm port-to-port body matches tighter pipe centres than the 180 mm variant. Maximum system pressure is rated to 10 bar, consistent with typical domestic heating installations.\u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eCast iron pump housing specified for closed-loop heating systems where potable water approval is not required\u003c\/li\u003e\r\n\u003cli\u003eThree-speed selector permits field adjustment of pump output from 50 W to 70 W\u003c\/li\u003e\r\n\u003cli\u003eCanned rotor design integrates the pump and motor without a mechanical shaft seal\u003c\/li\u003e\r\n\u003cli\u003eCeramic shaft and bearings are lubricated directly by the circulating heating water\u003c\/li\u003e\r\n\u003cli\u003eComposite impeller construction delivers consistent hydraulic performance in closed-loop water and glycol mixtures\u003c\/li\u003e\r\n\u003cli\u003eLiquid temperature tolerance from 2°C to 110°C covers standard radiator circuits and higher-temperature boiler installations\u003c\/li\u003e\r\n\u003cli\u003eCompact 130 mm port-to-port body dimension accommodates tighter pipe centres\u003c\/li\u003e\r\n\u003c\/ul\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":50978282406135,"sku":"96281476","price":436.75,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/grundfos-ups-25-60-cast-iron-three-speed-circulator-pump-for-radiator-heating.png?v=1785223220","url":"https:\/\/foundationpumps.com.au\/products\/grundfos-ups-25-60-cast-iron-three-speed-circulator-pump-for-radiator-heating","provider":"Foundation Pumps","version":"1.0","type":"link"}