{"product_id":"grundfos-ups-25-120-cast-iron-three-speed-circulator-pump-for-space-heating","title":"Grundfos UPS 25-120 Cast Iron Three Speed Circulator Pump for Space Heating with Composite Impeller","description":"\u003cp\u003eMulti-storey risers and systems with unusually long branch runs require more head than any other pump in the UPS cast iron range can generate. The Grundfos UPS 25-120 sits at the top of that lineup, purpose-built for closed-loop circuits where vertical lift or extended pipe resistance would otherwise limit circulation to the highest points of the system.\u003c\/p\u003e\r\n\u003cp\u003eAt full speed the pump delivers 34 L\/Min against a maximum head of 12 m, the tallest rating among the UPS 25 models, powered by up to 230 W and 0.99 A on a 1 x 240 V supply. Three selectable speeds step power from 125 W upward, allowing the pump to be run below maximum on shorter branches while retaining full head capacity where the riser demands it.\u003c\/p\u003e\r\n\u003cp\u003eThe canned rotor motor lubricates its own bearings using the circulating heating water, a design carried through the entire UPS range that removes the mechanical shaft seal. Liquid temperature tolerance runs from -25°C up to 95°C, slightly lower than the 110°C rating of other UPS 25 variants, reflecting its focus on standard heating rather than higher-temperature boiler applications.\u003c\/p\u003e\r\n\u003cp\u003eAn IPX2D enclosure provides contact protection, and internal thermal protection is built into the motor winding. At 180 mm port-to-port with 1 1\/2 inch connections, it retains the same physical footprint as the other 180 mm UPS 25 models, making it a direct upgrade path where an existing installation needs more head without a larger bore.\u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eTallest head rating in the UPS 25 range at 12 m for multi-storey risers and systems with unusually long branch runs\u003c\/li\u003e\r\n\u003cli\u003eThree-speed selector permits field adjustment from 125 W to 230 W\u003c\/li\u003e\r\n\u003cli\u003eCanned rotor design with self-lubricating bearings eliminates the mechanical shaft seal\u003c\/li\u003e\r\n\u003cli\u003eInternal thermal motor protection safeguards the winding against overload in continuous operation\u003c\/li\u003e\r\n\u003cli\u003eCast iron housing specified for closed-loop heating applications where potable water approval is not required\u003c\/li\u003e\r\n\u003cli\u003eLiquid temperature tolerance from -25°C to 95°C for standard heating applications and cold plant room environments\u003c\/li\u003e\r\n\u003cli\u003eIPX2D enclosure rating provides protection against dripping water and contact in service environments\u003c\/li\u003e\r\n\u003cli\u003e180 mm port-to-port body dimension matches the footprint of other UPS 25 models\u003c\/li\u003e\r\n\u003c\/ul\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":50978282635511,"sku":"52588336","price":1244.6,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/grundfos-ups-25-120-cast-iron-three-speed-circulator-pump-for-space-heating.png?v=1785223231","url":"https:\/\/foundationpumps.com.au\/products\/grundfos-ups-25-120-cast-iron-three-speed-circulator-pump-for-space-heating","provider":"Foundation Pumps","version":"1.0","type":"link"}