Mixing Loops

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  1. Grundfos MIXIT 25-10 L NRV Complete Mixing Loop - 230v - Single Phase - 91 Ltr/min

    99508819

    Grundfos - MIXIT 25-10 L NRV Complete Mixing Loop - 230V - Single Phase - 91 Ltr/min.

    MIXIT 25-10 L NRV

    Grundfos MIXIT is a pre-fabricated, complete mixing loop with integrated management functions engineered for heating and cooling installations. MIXIT is mainly suited for three-way systems in large buildings, such as schools, with no need for monitoring, pressure independence or balancing. With MIXIT a complete mixing loop is built with only two components: a MIXIT valve device and the best-in-class Grundfos MAGNA3 circulator Pump.
    Because MIXIT communicates wirelessly with MAGNA3, only two power cables are required for the MIXIT installation to work. The space‑saving design guarantees a maximum utilisation of space and a tidy and space‑saving setup.

    MIXIT has an integrated actuator and controller and built-in flow and temperature sensors. Due to the uniquely engineered valve and real-time sensor measurements, MIXIT guarantees accurate flow temperature management even at reduced flow. Threaded versions of MIXIT have an integrated, removable non-return valve. Non-return valves are available as an accessory for flange versions.

    MIXIT is controlled via an intuitive operating panel and communicates wirelessly with Grundfos GO Remote for simple setup and management. MIXIT can be configured via three I/O terminals and two relay outputs.

    The MIXIT installation can operate as a standalone mixing loop in buildings without any additional equipment. Fieldbus (BACnet, Modbus or GENIbus) via Ethernet RJ45 and RS485 transceiver guarantees simple BMS integration, allowing MIXIT to also work as a subsystem in larger buildings.

    MIXIT provides all functions needed to tailor your mixing loop to your installation, including the following:

    • Suitable for Commercial heating, Commercial air conditioning,
    • Maximum operating pressure: 10 Bar.
    • Temperature liquid range: 0 .. 90 °C.
    • Approvals include CE


    Grundfos (est. 1945) is a Danish pump manufacturer known for high-efficiency circulators, multistage boosters, borehole and wastewater pumps, plus packaged pressure systems. The range covers HVAC circulation, domestic hot water recirculation, pressure boosting, industrial water transfer and public water management, with strong focus on energy efficiency and intelligent controls.

    £2,516.40 RRP £1,635.66 £1,363.05
    In Stock 2-3 day delivery
    Delivery Icon Free Standard Delivery
  2. Grundfos MIXIT 25-10 R NRV Complete Mixing Loop - 230v - Single Phase - 91 Ltr/min

    99508820

    Grundfos - MIXIT 25-10 R NRV Complete Mixing Loop - 230V - Single Phase - 91 Ltr/min.

    Grundfos MIXIT is a pre-fabricated, complete mixing loop with integrated control functions designed for heating and cooling systems. MIXIT is mainly suited for three-way installations in large buildings, such as schools, with no need for monitoring, pressure independence or balancing. With MIXIT a complete mixing loop is built with only two components: a MIXIT valve unit and the best-in-class Grundfos MAGNA3 circulator pump.

    £2,516.40 RRP £1,635.66 £1,363.05
    In Stock 2-3 day delivery
    Delivery Icon Free Standard Delivery
  3. Grundfos MIXIT 25-6.3 L NRV Complete Mixing Loop - 230v - Single Phase - 58 Ltr/min

    99508816

    Grundfos - MIXIT 25-6.3 L NRV Complete Mixing Loop - 230V - Single Phase - 58 Ltr/min.

    MIXIT 25-6.3 L NRV

    Grundfos MIXIT is a pre-fabricated, complete mixing loop with integrated management functions engineered for heating and cooling installations. MIXIT is mainly suited for three-way systems in large buildings, such as schools, with no need for monitoring, pressure independence or balancing. With MIXIT a complete mixing loop is built with only two components: a MIXIT valve device and the best-in-class Grundfos MAGNA3 circulator Pump.
    Because MIXIT communicates wirelessly with MAGNA3, only two power cables are required for the MIXIT installation to work. The space‑saving design guarantees a maximum utilisation of space and a tidy and space‑saving setup.

    MIXIT has an integrated actuator and controller and built-in flow and temperature sensors. Due to the uniquely engineered valve and real-time sensor measurements, MIXIT guarantees accurate flow temperature management even at reduced flow. Threaded versions of MIXIT have an integrated, removable non-return valve. Non-return valves are available as an accessory for flange versions.

    MIXIT is controlled via an intuitive operating panel and communicates wirelessly with Grundfos GO Remote for simple setup and management. MIXIT can be configured via three I/O terminals and two relay outputs.

    The MIXIT installation can operate as a standalone mixing loop in buildings without any additional equipment. Fieldbus (BACnet, Modbus or GENIbus) via Ethernet RJ45 and RS485 transceiver guarantees simple BMS integration, allowing MIXIT to also work as a subsystem in larger buildings.

    MIXIT provides all functions needed to tailor your mixing loop to your installation, including the following:

    • Suitable for Commercial heating, Commercial air conditioning,
    • Maximum operating pressure: 10 Bar.
    • Temperature liquid range: 0 .. 90 °C.
    • Approvals include CE


    Grundfos (est. 1945) is a Danish pump manufacturer known for high-efficiency circulators, multistage boosters, borehole and wastewater pumps, plus packaged pressure systems. The range covers HVAC circulation, domestic hot water recirculation, pressure boosting, industrial water transfer and public water management, with strong focus on energy efficiency and intelligent controls.

    £2,288.40 RRP £1,487.46 £1,239.55
    In Stock 2-3 day delivery
    Delivery Icon Free Standard Delivery
  4. Grundfos MIXIT 25-6.3 R NRV - Complete Mixing Loop - 230v - Single Phase - 58 Ltr/min

    99508818

    Grundfos - MIXIT 25-6.3 R NRV - Complete Mixing Loop - 230V - Single Phase - 58 Ltr/min.

    MIXIT 25-6.3 R NRV

    Grundfos MIXIT is a pre-fabricated, complete mixing loop with integrated management functions engineered for heating and cooling installations. MIXIT is mainly suited for three-way systems in large buildings, such as schools, with no need for monitoring, pressure independence or balancing. With MIXIT a complete mixing loop is built with only two components: a MIXIT valve device and the best-in-class Grundfos MAGNA3 circulator Pump.
    Because MIXIT communicates wirelessly with MAGNA3, only two power cables are required for the MIXIT installation to work. The space‑saving design guarantees a maximum utilisation of space and a tidy and space‑saving setup.

    MIXIT has an integrated actuator and controller and built-in flow and temperature sensors. Due to the uniquely engineered valve and real-time sensor measurements, MIXIT guarantees accurate flow temperature management even at reduced flow. Threaded versions of MIXIT have an integrated, removable non-return valve. Non-return valves are available as an accessory for flange versions.

    MIXIT is controlled via an intuitive operating panel and communicates wirelessly with Grundfos GO Remote for simple setup and management. MIXIT can be configured via three I/O terminals and two relay outputs.

    The MIXIT installation can operate as a standalone mixing loop in buildings without any additional equipment. Fieldbus (BACnet, Modbus or GENIbus) via Ethernet RJ45 and RS485 transceiver guarantees simple BMS integration, allowing MIXIT to also work as a subsystem in larger buildings.

    MIXIT provides all functions needed to tailor your mixing loop to your installation, including the following:

    • Suitable for Commercial heating, Commercial air conditioning,
    • Maximum operating pressure: 10 Bar.
    • Temperature liquid range: 0 .. 90 °C.
    • Approvals include CE


    Grundfos (est. 1945) is a Danish pump manufacturer known for high-efficiency circulators, multistage boosters, borehole and wastewater pumps, plus packaged pressure systems. The range covers HVAC circulation, domestic hot water recirculation, pressure boosting, industrial water transfer and public water management, with strong focus on energy efficiency and intelligent controls.

    £2,288.40 RRP £1,487.46 £1,239.55
    In Stock 2-3 day delivery
    Delivery Icon Free Standard Delivery
  5. Grundfos MIXIT 32-16 L F Complete Mixing Loop - 230v - Single Phase - 146 Ltr/min

    99508836

    Grundfos - MIXIT 32-16 L F Complete Mixing Loop - 230V - Single Phase - 146 Ltr/min.

    MIXIT 32-16 L F

    Grundfos MIXIT is a pre-fabricated, complete mixing loop with integrated management functions engineered for heating and cooling installations. MIXIT is mainly suited for three-way systems in large buildings, such as schools, with no need for monitoring, pressure independence or balancing. With MIXIT a complete mixing loop is built with only two components: a MIXIT valve device and the best-in-class Grundfos MAGNA3 circulator Pump.
    Because MIXIT communicates wirelessly with MAGNA3, only two power cables are required for the MIXIT installation to work. The space‑saving design guarantees a maximum utilisation of space and a tidy and space‑saving setup.

    MIXIT has an integrated actuator and controller and built-in flow and temperature sensors. Due to the uniquely engineered valve and real-time sensor measurements, MIXIT guarantees accurate flow temperature management even at reduced flow. Threaded versions of MIXIT have an integrated, removable non-return valve. Non-return valves are available as an accessory for flange versions.

    MIXIT is controlled via an intuitive operating panel and communicates wirelessly with Grundfos GO Remote for simple setup and management. MIXIT can be configured via three I/O terminals and two relay outputs.

    The MIXIT installation can operate as a standalone mixing loop in buildings without any additional equipment. Fieldbus (BACnet, Modbus or GENIbus) via Ethernet RJ45 and RS485 transceiver guarantees simple BMS integration, allowing MIXIT to also work as a subsystem in larger buildings.

    MIXIT provides all functions needed to tailor your mixing loop to your installation, including the following:

    • Suitable for Commercial heating, Commercial air conditioning,
    • Maximum operating pressure: 10 Bar.
    • Temperature liquid range: 0 .. 90 °C.
    • Approvals include CE


    Grundfos (est. 1945) is a Danish pump manufacturer known for high-efficiency circulators, multistage boosters, borehole and wastewater pumps, plus packaged pressure systems. The range covers HVAC circulation, domestic hot water recirculation, pressure boosting, industrial water transfer and public water management, with strong focus on energy efficiency and intelligent controls.

    £3,169.20 RRP £2,059.98 £1,716.65
    In Stock 2-3 day delivery
    Delivery Icon Free Standard Delivery
  6. Grundfos MIXIT 32-16 L NRV Complete Mixing Loop - 230v - Single Phase - 146 Ltr/min

    99508822

    Grundfos - MIXIT 32-16 L NRV Complete Mixing Loop - 230V - Single Phase - 146 Ltr/min.

    MIXIT 32-16 L NRV

    Grundfos MIXIT is a pre-fabricated, complete mixing loop with integrated control functions designed for heating and cooling systems. MIXIT is mainly suited for three-way installations in large buildings, such as schools, with no need for monitoring, pressure independence or balancing. With MIXIT it is possible to build a complete mixing loop with only two components: a MIXIT valve unit and the best-in-class Grundfos MAGNA3 circulator pump.
    MIXIT communicates wirelessly with MAGNA3, meaning that only two power cables are required for the MIXIT system to work. The space-efficient design ensures maximum utilisation of space and a tidy and space-efficient installation.

    MIXIT has an integrated actuator and controller as well as built-in flow and temperature sensors. Due to the uniquely designed valve and real-time sensor measurements, MIXIT ensures precise flow temperature control even at low flow. Threaded versions of MIXIT have an integrated, removable non-return valve. Non-return valves are available as an accessory for flange versions.

    MIXIT is controlled via an intuitive operating panel and communicates wirelessly with Grundfos GO Remote for straightforward setup and control. MIXIT can be configured via three I/O terminals and two relay outputs.

    The MIXIT system can operate as a standalone mixing loop in buildings without any additional equipment. Fieldbus (BACnet, Modbus or GENIbus) via Ethernet RJ45 and RS485 transceiver ensures straightforward BMS integration, allowing MIXIT to also work as a subsystem in larger buildings.

    MIXIT offers all functions needed to tailor your mixing loop to your system, including the following:

    • eco schedule and warm-weather shutdown
    • outdoor temperature compensation
    • pump control modes for all heating and cooling applications
    • coil preheating and frost protection for air handling systems
    • overheating protection for underfloor heating systems
    • external setpoint reduction for radiator heating systems
    • temperature control
    MIXIT DYNAMIC also gives access to free monitoring via Grundfos BuildingConnect, a real-time monitoring system with alarm and warning notifications.

    MIXIT can be combined with the DYNAMIC and CONNECT upgrades.

    Suitable for: Commercial heating, Commercial air conditioning

    £2,793.60 RRP £1,815.84 £1,513.20
    In Stock 2-3 day delivery
    Delivery Icon Free Standard Delivery
  7. Grundfos MIXIT 32-16 R F Complete Mixing Loop - 230v - Single Phase - 146 Ltr/min

    99508837

    Grundfos - MIXIT 32-16 R F Complete Mixing Loop - 230V - Single Phase - 146 Ltr/min.

    MIXIT 32-16 R F

    Grundfos MIXIT is a pre-fabricated, complete mixing loop with integrated management functions engineered for heating and cooling installations. MIXIT is mainly suited for three-way systems in large buildings, such as schools, with no need for monitoring, pressure independence or balancing. With MIXIT a complete mixing loop is built with only two components: a MIXIT valve device and the best-in-class Grundfos MAGNA3 circulator Pump.
    Because MIXIT communicates wirelessly with MAGNA3, only two power cables are required for the MIXIT installation to work. The space‑saving design guarantees a maximum utilisation of space and a tidy and space‑saving setup.

    MIXIT has an integrated actuator and controller and built-in flow and temperature sensors. Due to the uniquely engineered valve and real-time sensor measurements, MIXIT guarantees accurate flow temperature management even at reduced flow. Threaded versions of MIXIT have an integrated, removable non-return valve. Non-return valves are available as an accessory for flange versions.

    MIXIT is controlled via an intuitive operating panel and communicates wirelessly with Grundfos GO Remote for simple setup and management. MIXIT can be configured via three I/O terminals and two relay outputs.

    The MIXIT installation can operate as a standalone mixing loop in buildings without any additional equipment. Fieldbus (BACnet, Modbus or GENIbus) via Ethernet RJ45 and RS485 transceiver guarantees simple BMS integration, allowing MIXIT to also work as a subsystem in larger buildings.

    MIXIT provides all functions needed to tailor your mixing loop to your installation, including the following:

    • Suitable for Commercial heating, Commercial air conditioning,
    • Maximum operating pressure: 10 Bar.
    • Temperature liquid range: 0 .. 90 °C.
    • Approvals include CE


    Grundfos (est. 1945) is a Danish pump manufacturer known for high-efficiency circulators, multistage boosters, borehole and wastewater pumps, plus packaged pressure systems. The range covers HVAC circulation, domestic hot water recirculation, pressure boosting, industrial water transfer and public water management, with strong focus on energy efficiency and intelligent controls.

    £3,169.20 RRP £2,059.98 £1,716.65
    In Stock 2-3 day delivery
    Delivery Icon Free Standard Delivery
  8. Grundfos MIXIT 32-16 R NRV Complete Mixing Loop - 230v - Single Phase - 146 Ltr/min

    99508834

    Grundfos - MIXIT 32-16 R NRV Complete Mixing Loop - 230V - Single Phase - 146 Ltr/min.

    MIXIT 32-16 R NRV

    Grundfos MIXIT is a pre-fabricated, complete mixing loop with integrated control functions designed for heating and cooling systems. MIXIT is mainly suited for three-way installations in large buildings, such as schools, with no need for monitoring, pressure independence or balancing. With MIXIT it is possible to build a complete mixing loop with only two components: a MIXIT valve unit and the best-in-class Grundfos MAGNA3 circulator pump.
    MIXIT communicates wirelessly with MAGNA3, meaning that only two power cables are required for the MIXIT system to work. The space-efficient design ensures maximum utilisation of space and a tidy and space-efficient installation.

    MIXIT has an integrated actuator and controller as well as built-in flow and temperature sensors. Due to the uniquely designed valve and real-time sensor measurements, MIXIT ensures precise flow temperature control even at low flow. Threaded versions of MIXIT have an integrated, removable non-return valve. Non-return valves are available as an accessory for flange versions.

    MIXIT is controlled via an intuitive operating panel and communicates wirelessly with Grundfos GO Remote for straightforward setup and control. MIXIT can be configured via three I/O terminals and two relay outputs.

    The MIXIT system can operate as a standalone mixing loop in buildings without any additional equipment. Fieldbus (BACnet, Modbus or GENIbus) via Ethernet RJ45 and RS485 transceiver ensures straightforward BMS integration, allowing MIXIT to also work as a subsystem in larger buildings.

    MIXIT offers all functions needed to tailor your mixing loop to your system, including the following:

    • eco schedule and warm-weather shutdown
    • outdoor temperature compensation
    • pump control modes for all heating and cooling applications
    • coil preheating and frost protection for air handling systems
    • overheating protection for underfloor heating systems
    • external setpoint reduction for radiator heating systems
    • temperature control
    MIXIT DYNAMIC also gives access to free monitoring via Grundfos BuildingConnect, a real-time monitoring system with alarm and warning notifications.

    MIXIT can be combined with the DYNAMIC and CONNECT upgrades.

    Suitable for: Commercial heating, Commercial air conditioning

    £2,793.60 RRP £1,815.84 £1,513.20
    In Stock 2-3 day delivery
    Delivery Icon Free Standard Delivery
  9. Grundfos MIXIT 50-40 L F Complete Mixing Loop - 230v - Single Phase - 365 Ltr/min

    99508840

    Grundfos - MIXIT 50-40 L F Complete Mixing Loop - 230V - Single Phase - 365 Ltr/min.

    MIXIT 50-40 L F

    Grundfos MIXIT is a pre-fabricated, complete mixing loop with integrated management functions engineered for heating and cooling installations. MIXIT is mainly suited for three-way systems in large buildings, such as schools, with no need for monitoring, pressure independence or balancing. With MIXIT a complete mixing loop is built with only two components: a MIXIT valve device and the best-in-class Grundfos MAGNA3 circulator Pump.
    Because MIXIT communicates wirelessly with MAGNA3, only two power cables are required for the MIXIT installation to work. The space‑saving design guarantees a maximum utilisation of space and a tidy and space‑saving setup.

    MIXIT has an integrated actuator and controller and built-in flow and temperature sensors. Due to the uniquely engineered valve and real-time sensor measurements, MIXIT guarantees accurate flow temperature management even at reduced flow. Threaded versions of MIXIT have an integrated, removable non-return valve. Non-return valves are available as an accessory for flange versions.

    MIXIT is controlled via an intuitive operating panel and communicates wirelessly with Grundfos GO Remote for simple setup and management. MIXIT can be configured via three I/O terminals and two relay outputs.

    The MIXIT installation can operate as a standalone mixing loop in buildings without any additional equipment. Fieldbus (BACnet, Modbus or GENIbus) via Ethernet RJ45 and RS485 transceiver guarantees simple BMS integration, allowing MIXIT to also work as a subsystem in larger buildings.

    MIXIT provides all functions needed to tailor your mixing loop to your installation, including the following:

    • Suitable for Commercial heating, Commercial air conditioning,
    • Maximum operating pressure: 10 Bar.
    • Temperature liquid range: 0 .. 90 °C.
    • Approvals include CE


    Grundfos (est. 1945) is a Danish pump manufacturer known for high-efficiency circulators, multistage boosters, borehole and wastewater pumps, plus packaged pressure systems. The range covers HVAC circulation, domestic hot water recirculation, pressure boosting, industrial water transfer and public water management, with strong focus on energy efficiency and intelligent controls.

    £4,257.60 RRP £2,767.44 £2,306.20
    In Stock 2-3 day delivery
    Delivery Icon Free Standard Delivery
  10. Grundfos MIXIT 50-40 R F Complete Mixing Loop - 230v - Single Phase - 365 Ltr/min

    99508841

    Grundfos - MIXIT 50-40 R F Complete Mixing Loop - 230V - Single Phase - 365 Ltr/min.

    MIXIT 50-40 R F

    Grundfos MIXIT is a pre-fabricated, complete mixing loop with integrated management functions engineered for heating and cooling installations. MIXIT is mainly suited for three-way systems in large buildings, such as schools, with no need for monitoring, pressure independence or balancing. With MIXIT a complete mixing loop is built with only two components: a MIXIT valve device and the best-in-class Grundfos MAGNA3 circulator Pump.
    Because MIXIT communicates wirelessly with MAGNA3, only two power cables are required for the MIXIT installation to work. The space‑saving design guarantees a maximum utilisation of space and a tidy and space‑saving setup.

    MIXIT has an integrated actuator and controller and built-in flow and temperature sensors. Due to the uniquely engineered valve and real-time sensor measurements, MIXIT guarantees accurate flow temperature management even at reduced flow. Threaded versions of MIXIT have an integrated, removable non-return valve. Non-return valves are available as an accessory for flange versions.

    MIXIT is controlled via an intuitive operating panel and communicates wirelessly with Grundfos GO Remote for simple setup and management. MIXIT can be configured via three I/O terminals and two relay outputs.

    The MIXIT installation can operate as a standalone mixing loop in buildings without any additional equipment. Fieldbus (BACnet, Modbus or GENIbus) via Ethernet RJ45 and RS485 transceiver guarantees simple BMS integration, allowing MIXIT to also work as a subsystem in larger buildings.

    MIXIT provides all functions needed to tailor your mixing loop to your installation, including the following:

    • Suitable for Commercial heating, Commercial air conditioning,
    • Maximum operating pressure: 10 Bar.
    • Temperature liquid range: 0 .. 90 °C.
    • Approvals include CE


    Grundfos (est. 1945) is a Danish pump manufacturer known for high-efficiency circulators, multistage boosters, borehole and wastewater pumps, plus packaged pressure systems. The range covers HVAC circulation, domestic hot water recirculation, pressure boosting, industrial water transfer and public water management, with strong focus on energy efficiency and intelligent controls.

    £4,257.60 RRP £2,767.44 £2,306.20
    In Stock 2-3 day delivery
    Delivery Icon Free Standard Delivery
  11. Grundfos - DDA 7.5-16 FCM-PP/V/C-F-31U2U2FG Digital Dosing Pump

    97722010

    Grundfos - DDA 7.5-16 FCM-PP/V/C-F-31U2U2FG Digital Dosing Pump

    The Grundfos DDA 7.5-16 FCM-PP/V/C-F-31U2U2FG Digital Dosing Pump (SKU: 97722010) is a technologically advanced, intelligent dosing solution developed for complex and demanding water applications.

    This SMART Digital diaphragm dosing pump incorporates advanced Digital Dosing technology, offering unparalleled precision, efficiency, and versatility for various industrial processes.



    Grundfos (est. 1945) is a Danish pump manufacturer known for high-efficiency circulators, multistage boosters, borehole and wastewater pumps, plus packaged pressure systems. The range covers HVAC circulation, domestic hot water recirculation, pressure boosting, industrial water transfer and public water management, with strong focus on energy efficiency and intelligent controls.

    £2,598.18 £2,165.15
    In Stock 6 week lead time
    Delivery Icon Free Standard Delivery
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Mixing Loops

Mixing Loops

Keep your heating and hot water systems running perfectly with mixing loops. They blend water from different circuits to maintain the ideal temperature, protecting boilers and pumps while saving energy. Simple to install and versatile, mixing loops make sure every part of your system performs at its best, whether it’s radiators, underfloor heating, or other circuits.