{"product_id":"grundfos-upm3-flex-25-70-circulation-pump","title":"Grundfos UPM3 Flex 25-70 A-Rated Circulation Pump","description":"\u003cp\u003eThe Grundfos UPM3 Flex 25-70 130 is an A-rated, high-efficiency circulation pump for underfloor heating and domestic heating systems. It uses PWM speed control from the heat pump or boiler, so the heat source sets the flow. When there's no PWM signal, it runs on constant curve (fixed speed) settings. It fits a standard 130mm pump position with 1½in unions.\u003c\/p\u003e\u003ch3\u003eWhy installers use it\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePWM speed control:\u003c\/b\u003e plug-in power and PWM signal connectors let a heat pump or boiler control the pump speed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eConstant curve settings:\u003c\/b\u003e fixed speed settings when there's no PWM signal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUp to 7m head:\u003c\/b\u003e for UFH manifolds and heating circuits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLow running cost:\u003c\/b\u003e A-rated, with an EEI of 0.20 or less.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecification\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eItem\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax head\u003c\/td\u003e\n\u003ctd\u003e7m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePort to port\u003c\/td\u003e\n\u003ctd\u003e130mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUnions\u003c\/td\u003e\n\u003ctd\u003e1½in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnergy rating\u003c\/td\u003e\n\u003ctd\u003eA-rated, EEI ≤ 0.20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply\u003c\/td\u003e\n\u003ctd\u003e230V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnectors\u003c\/td\u003e\n\u003ctd\u003ePlug-in power and PWM signal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWorks with\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/grundfos-replacement-pump-power-cable-upm3\"\u003eGrundfos Replacement Pump Power Cable (UPM3)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/ufh-non-mixing-pump-set-no-pump\"\u003eUFH Non-Mixing Pump Set (No Pump)\u003c\/a\u003e or \u003ca href=\"\/products\/ufh-manifold-blending-valve-20-55c-valve-only-no-pump\"\u003eUFH Manifold Blending Valve 20–55°C (Valve Only)\u003c\/a\u003e to build your own pack\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/ufh-manifold-blending-valve-pump-pack-20-55c-with-grundfos-upm3-flex\"\u003eBlending Valve Pump Pack with Grundfos UPM3 Flex\u003c\/a\u003e if you want it ready assembled\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pumps-actuators-valves\"\u003ePumps, actuators and valves\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eQuestions\u003c\/h3\u003e\u003cp\u003e\u003cb\u003eWill it fit my pump pack?\u003c\/b\u003e\u003cbr\u003eIt has a 130mm body and 1½in unions, which is the pump size our valve-only UFH packs take.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eCan my heat pump control it?\u003c\/b\u003e\u003cbr\u003eYes, if the heat pump has a PWM output. Connect it to the pump's PWM signal connector. Without a signal it runs on the setting you choose on the pump.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eOrder by 12pm, Monday to Friday, for next working day UK delivery.\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003eProduct codes: MH-PUMP-UPM3F-2570\u003c\/p\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":59108766417231,"sku":"MH-PUMP-UPM3F-2570","price":161.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1046\/4493\/6015\/files\/mh-pump-25-70.png?v=1792163062","url":"https:\/\/www.maxheatufh.com\/products\/grundfos-upm3-flex-25-70-circulation-pump","provider":"MaxHeatUFH","version":"1.0","type":"link"}