Grundfos UPM3 Flex 25-70 A-Rated Circulation Pump

The 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.

Why installers use it

• PWM speed control: plug-in power and PWM signal connectors let a heat pump or boiler control the pump speed.
• Constant curve settings: fixed speed settings when there's no PWM signal.
• Up to 7m head: for UFH manifolds and heating circuits.
• Low running cost: A-rated, with an EEI of 0.20 or less.

Specification

Works with

• Grundfos Replacement Pump Power Cable (UPM3)
• UFH Non-Mixing Pump Set (No Pump) or UFH Manifold Blending Valve 20–55°C (Valve Only) to build your own pack
• Blending Valve Pump Pack with Grundfos UPM3 Flex if you want it ready assembled
• Pumps, actuators and valves

Questions

Will it fit my pump pack?
It has a 130mm body and 1½in unions, which is the pump size our valve-only UFH packs take.

Can my heat pump control it?
Yes, 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.

Order by 12pm, Monday to Friday, for next working day UK delivery.

Product codes: MH-PUMP-UPM3F-2570