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Grundfos UPM3 FLEX AS 25-70 130mm 7m Circulating Pump – A-Rated High Efficiency

Original price was: £149.99.Current price is: £120.99.

  • Grundfos UPM3 FLEX AS 25-70 circulation pump

  • A-rated high-efficiency central heating pump

  • 7-metre maximum head performance

  • Compact 130mm port-to-port length

  • Suitable for boilers and underfloor heating systems

  • Digital control input for optimised operation

In stock

SKU: GRUN-PMP-2570-N Category: Tag:

Manufacturer Part Number: UPM3 FLEX AS 25-70 pump

Description

Grundfos UPM3 FLEX AS 25-70 130mm Circulating Pump | A-Rated Central Heating Pump

The Grundfos UPM3 FLEX AS 25-70 130mm circulating pump is a high-efficiency, A-rated circulation pump designed for modern central heating and underfloor heating systems. Built as a reliable workhorse, it delivers excellent performance while maintaining very low energy consumption.

Its lightweight, compact design makes installation straightforward, even in restricted spaces commonly found within boiler casings or manifold cabinets. The UPM3 FLEX AS is digitally controlled, allowing it to adapt its operation precisely to system demand, improving efficiency and extending system life.

This pump is widely used in boilers, heating circuits, and water-based underfloor heating systems, where consistent flow and reliability are essential.

ONNECTION DETAILS

  • Port-to-port length: 130mm

  • Connections: 1″ ½ BSP threaded

  • Note: BSP thread sizes do not correspond to ruler measurements
    (1″ ½ BSP ≈ 47.80mm outside diameter)


⚙️ TECHNICAL SPECIFICATIONS

  • Maximum head: 70 dm (7 metres)

  • Energy efficiency index (EEI): 0.20

  • TF class: 110

  • Pump housing: Cast iron

  • Impeller material: PES 30% glass-fibre reinforced

  • Maximum ambient temperature: 70 °C

  • Maximum operating pressure: 10 bar

  • Pumped liquid: Water

  • Liquid temperature range: 2 °C to 110 °C

  • Selected liquid temperature: 60 °C

  • Liquid density: 983.2 kg/m³

  • Power input (P1): 2 – 52 W

  • Rated voltage: 1 × 230 V

  • Mains frequency: 50 Hz

  • Maximum current consumption: 0.04 – 0.52 A

  • Enclosure protection class: IP44

  • Thermal protection: Electronic

 

Brand

Grundfos

Grundfos is a Danish pump manufacturer that is widely regarded as one of the world's largest and most innovative manufacturers of water, wastewater, and process pumps. The company has been in operation since 1945 and has facilities in more than 80 countries on all continents. Grundfos produces a wide range of pumps and related systems for use in domestic, industrial, agricultural, flood control, groundwater management, and other applications. Grundfos is known for its energy-efficient and dependable pumps and systems, and the company is dedicated to providing highly efficient and cost-effective solutions to all customers. The company also offers a variety of products that are tailored to specific application needs, such as domestic hot water systems, wastewater treatment processes, or industrial requirements such as cooling or pressure boosting. Grundfos also designs and manufactures custom pumps and systems, allowing it to provide complete solutions that are designed and tested specifically for each customer's project. Grundfos is committed to both efficiency and customer satisfaction, as well as sustainability. Energy efficiency, water sustainability, environmental protection, and social responsibility are all part of the company's comprehensive sustainability strategy. In addition, Grundfos has signed the United Nations Global Compact, an international agreement that promotes sustainability and responsible business practises. Grundfos is the pump industry's leader, with a solid reputation for providing dependable, efficient, and cost-effective solutions. The company is also committed to sustainability, which it has been incorporating into its operations for many years.

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    1 X Original price was: £120.90.Current price is: £110.90. = £92.42 (ex. VAT)