Shunt & Mixing Valves

Plumbing Valves Control valves Shunt & Mixing Valves

The right amount of water and precise temperature are crucial for a well-functioning HVAC system. In our range of shunt and mixing valves you will find reliable components that help you regulate, distribute and secure the flow in both heating systems, underfloor heating and tap water systems.

By mixing hot and cold water to exactly the right level, you reduce the risk of scalding in hot water systems while optimizing the energy consumption of your heating system. We offer quality products from well-known manufacturers such as ESBE, including thermostatic mixing valves, actuators, shunt valves and associated accessories. Whether you are planning a new installation or need to replace an existing valve, you will find sustainable solutions tailored to your needs with us at Velltra.

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Choose the right shunt and mixing valve

Choosing the right valve and control is the key to a safe, energy-efficient and even temperature in the house's HVAC system. Different applications require different types of valves, and it is important to start from what the system is to regulate.

The difference between mixing valves and shunt valves

  • Mixing valves: Used primarily for domestic hot water and smaller heating systems. The valve automatically mixes the incoming hot water with cold water to a preset, safe temperature. This prevents scalding accidents in taps and showers while maximizing the capacity of the water heater.
  • Shunt valves: Used primarily in heating systems such as water-based underfloor heating or radiator systems. By mixing recurring return water with supplied hot water from the boiler or heat pump, the supply temperature to elements or loops is regulated.
  • Actuator and control: With a motorized actuator connected to the shunt valve, temperature adjustment can be automated based on outdoor temperature or indoor sensor for optimal comfort and lowest possible energy consumption.

Important factors to consider before purchasing

  • Connection type and dimension: Check whether you need a compression fitting or threaded connection (for example, internal or external thread) and which dimension (such as DN15, DN20 or pipe diameter in mm) fits your pipe system.
  • Flow capacity and Kvs value: Choose a valve with the right capacity for the size of the system so that the flow is neither restricted nor difficult to regulate precisely.
  • Temperature range: Ensure that the valve is intended for the temperature range that prevails in your facility.
  • Insulation: Feel free to supplement with customized insulation bowls to reduce energy losses and create a stylish and safe installation.

Areas of application

  1. Drinking water system: Protects against excessive temperatures at taps and ensures an even hot water temperature.
  2. Underfloor heating system: Lowers the supply temperature to an appropriate level to avoid damaging the floor material.
  3. Radiator system: Adjusts the heat supply according to the season and outdoor climate for an even indoor temperature.

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