How does a thermostatic mixing valve work?
As the element expands and contracts, it moves the slide valve (5) to correctly proportion the amount of cold and hot water entering the valve. If the cold water supply were to fail slowly over a long period of time, the valve would increasingly throttle the hot supply to maintain a safe temperature at the outlet (3).
What temperature should thermostat mixing valves be set at?
The Thermostatic Mixing Valve is intended mainly for use in applications with set temperatures of 45°C or below. When installed at higher set temperature, the performance may be less than specified in AS4032.
Where do you put a thermostatic mixing valve?
A thermostatic mixer can be installed in the hot water heater itself or on a specific plumbing fixture, such as through a shower valve.
How accurate are thermostatic mixing valves?
Despite a TMV and a tempering valve having similar jobs, there are some differences between them including : Tempering valves are accurate to approximately 3°C +/- but TMVs are accurate to around 1°C +/- TMVs are more expensive than tempering valves. TMVs are quicker to respond to temperature changes.
Do I need a thermostatic mixing valve?
Conclusion. Thermostatic mixing valves on your water heater are essential to prevent scalding and control water temperature at the delivery point. It allows you to increase the heater temperature, killing off harmful bacteria.
What is the function of a mixing valve?
The basic function of a mixing valve is to mix the hot water and the cold water so that it comes out of the faucet at a comfortable and safe temperature.
Do I need a mixing valve on my hot water heater?
A mixing valve will allow you to run your water heater at a higher temperature and mix cold water in to get to the desired temperature at the tap. It isn’t required.
How does mixing valve work on underfloor heating?
An explanation of how the manifold & mixing valve work This mixer is a self-acting thermostatic 4-port TMV (Thermostatic Mixing Valve) that is used to mix the flow from the boiler with the return from the underfloor heating system, to provide the correctly mixed temperature for the heating loops beneath your floor.