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    Baxi circulator pumps

    Quantum ECO de BAXI - Q-Tech ®
    BAXI Quantum ECO 65 and 80 wet-rotor circulator with DN65/DN80 flanges and electronic control
    BAXI Quantum ECO
    BAXI
    from €876,74
    Bomba Circuladora Baxi Quantum MAXI | Control Hidráulico Avanzado - Q-Tech ® 2027
    Bomba Circuladora Baxi Quantum MAXI | Control Hidráulico Avanzado - Q-Tech ® 2027
    Baxi Quantum MAXI
    BAXI
    from €246,62
    Baxi Quantum MINI circulator pump with ECM motor, three-quarter view on white background
    Baxi Quantum MINI high-efficiency circulator pump for heating and cooling
    BAXI
    from €191,01
    Baxi SB Series bronze DHW recirculation circulator, front view
    Baxi SB Series bronze DHW recirculation circulator pump
    BAXI
    from €253,83
    Baxi SB-4X compact brass DHW recirculation circulator, side view
    Baxi SB-4X compact brass DHW recirculation circulator
    BAXI
    €233,22

    Baxi circulator pumps for heating, cooling and DHW recirculation

    A circulator pump is the pump that moves water around a closed heating or cooling circuit, or around the domestic hot water return. Here are the five Baxi ranges we sell, from the circulator for a single home to the flanged pump for a whole building.

    The Quantum pumps are wet-rotor units with an ECM motor and differential pressure control; the SB pumps have a bronze or brass body, for domestic water. Each product page shows the units available and the lead time.

    Models in this collection

    RangeWhat forMaximum flowMaximum headModels
    Quantum ECOHeating and cooling in buildings7 to 55 m³/h7 to 16 m11, from the 32 to the 80
    Quantum MAXIHomes and small installations, unions included2.7 to 4.4 m³/h4.2 to 7.5 m6, from the MYL-30 to the 1045
    Quantum MINIBoilers and small circuits; unions sold separately2.7 to 3.5 m³/h4.2 to 6 m3: MYL-30, 1025 and 1035
    SB seriesDHW recirculation in homes and buildings1.5 to 9.5 m³/h0.8 to 9 m5, from the SB-5 Y to the SB-150 XL
    SB-4XDHW recirculation in a home, with pre-fitted valvesNo published figure1 m1

    Data according to Baxi.

    How to choose your Baxi circulator

    1. Closed circuit or domestic water. For heating or cooling, Quantum; for the DHW return, the SB series or the SB-4X, with a bronze or brass body.
    2. Head the installation needs. Up to 7.5 m, MAXI or MINI; above that, Quantum ECO.
    3. Port-to-port length and connection. The MAXI and the MINI use unions; from the Quantum ECO 40 upwards the connection is flanged.

    If you are looking at another brand, compare them in circulator pumps and pump groups.

    Applications

    1. Replacing the circulator on a domestic boiler.
    2. Moving the radiator or underfloor heating circuit of a building.
    3. Keeping the hot water return of a hotel or an apartment block in service.

    Why buy your Baxi circulator from Q-Tech?

    1. We fit the pump in our pre-assembled plant room, which arrives tested and ready to connect.
    2. We replace your old one with a Technical Expert on site, by the hour.
    3. We help you choose the model on a technical call or over WhatsApp.

    Frequently asked questions

    Are the unions included? According to Baxi, yes on the Quantum MAXI and on the ECO 32 and 32H; from the ECO 40 upwards gaskets, flanges, counter-flanges and bolts are supplied, and on the Quantum MINI the unions are a separate accessory.

    Can I use a Quantum on the DHW return? No: domestic water needs the bronze or brass bodies of the SB series or the SB-4X.

    Which Quantum replaces my old circulator? Baxi publishes a cross-reference table from its PC, MC and SC circulators to the Quantum range; in some cases an adapter is needed.

    What temperatures do they work at? According to Baxi, −10 to 110 °C for the Quantum ECO and −10 to 95 °C for the MAXI and the MINI; the DHW pumps, up to 60–65 °C.

    Choose the range by the circuit and look for the head and the port-to-port length your installation needs.

    Updated 13-11-2026 · v5.4