{"product_id":"grundfos-ups-25-60-cast-iron-three-speed-circulator-pump-for-underfloor-heating","title":"Grundfos UPS 25-60 Cast Iron Three Speed Circulator Pump for Underfloor Heating with Composite Impeller","description":"\u003cp\u003eUnderfloor heating loops and longer radiator circuits often require slightly more flow than a compact pump provides, and the 180 mm-bodied Grundfos UPS 25-60 covers that gap while retaining the cast iron construction suited to closed-loop systems. It is built for domestic heating installations where the pump sits within a sealed circuit rather than a potable water line.\u003c\/p\u003e\r\n\u003cp\u003eAt full speed the pump reaches 36.2 L\/Min against a maximum head of 6 m, drawing 60 W and 0.28 A from a 1 x 240 V supply across its top setting. The three-speed switch allows output to be reduced on smaller zones, with power stepping down to 50 W at the lowest setting to match actual heat demand.\u003c\/p\u003e\r\n\u003cp\u003eAs with other models in the UPS range, a canned rotor eliminates the mechanical shaft seal, with bearings lubricated by the system water itself. The cast iron housing and composite impeller are rated for liquid temperatures from 2°C to 110°C, covering both standard radiator loops and underfloor manifolds running at lower flow temperatures.\u003c\/p\u003e\r\n\u003cp\u003eMaximum operating pressure is 10 bar, and the pump carries an IP44 enclosure rating for undercover installation. At 180 mm port-to-port with 1 1\/2 inch connections, it shares its footprint with the 130 mm model's wider sibling in the cast iron heating range.\u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eCast iron housing specified for closed-loop heating systems\u003c\/li\u003e\r\n\u003cli\u003eThree-speed selector permits field adjustment from 50 W to 60 W\u003c\/li\u003e\r\n\u003cli\u003eCanned rotor design eliminates the mechanical shaft seal\u003c\/li\u003e\r\n\u003cli\u003eSelf-lubricating ceramic bearings are lubricated directly by the circulating system water\u003c\/li\u003e\r\n\u003cli\u003eComposite impeller construction delivers consistent hydraulic performance in radiator and underfloor heating applications\u003c\/li\u003e\r\n\u003cli\u003eLiquid temperature tolerance from 2°C to 110°C covers standard radiator circuits and low-temperature underfloor manifolds\u003c\/li\u003e\r\n\u003cli\u003eExtended 180 mm port-to-port body dimension accommodates longer heating circuits and standard domestic pipe spacing\u003c\/li\u003e\r\n\u003c\/ul\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":50978282438903,"sku":"96281483","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-underfloor-heating.png?v=1785223222","url":"https:\/\/foundationpumps.com.au\/products\/grundfos-ups-25-60-cast-iron-three-speed-circulator-pump-for-underfloor-heating","provider":"Foundation Pumps","version":"1.0","type":"link"}