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Vaillant mixing module (VDM)

Mixing pump groups

  • Provides controlled temperature mixing for different heating zones
  • Quick and easy installation on all renewables and gas multi-zone systems
  • Manage flow control to maintain comfort
  • High quality insulation shell is aesthetically pleasing with minimal noise levels


The Vaillant mixing pump group is a circulation mixing unit that is intended for heating systems with multiple zones, which operate at different flow temperatures.

The mixing module comes equipped with two shut-off valves with in-built thermometers, check valve and high efficiency circulation pump, all encased within a high quality insulation shell. The mixing module also includes a three-way rotary progressive mixing valve and actuator which, combined with our VRC 700 system control, allows fully weather compensated heating across the entire system.

Related Products

Related Products

VRC 700 / VRC 700f Weather Compensating Thermostats

  • Works with our complete range of Vaillant boilers
  • Flexible time programs
  • Works with S & Y plan systems
  • Clear, high contrast backlit display
  • Boiler guarantee match! Match the guarantee length of our award-winning boilers when you register both products together on Advance