What Is A Thermostatic Mixing Valve Used For


What is the purpose of a thermostatic mixing valve?

Thermostatic Mixing Valve Main Purpose. Thermostatic mixing valve is a valve used for maintaining water temperature by blending cold and hot water together in constant flow to ensure safety while washing hands, taking shower and / or bathing. via

Do I need a thermostatic mixing valve?

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. via

Where are thermostatic mixing valves required?

For combined heating hot water and domestic hot water systems, when the heating hot water system exceeds 140°F the IPC code requires a temperature actuated mixing valve conforming to ASSE 1017 to limit the domestic hot water temperature to a maximum of 140°F. via

What is the difference between a mixing valve and a thermostatic mixing valve?

TMVs are quicker to respond to temperature changes. TMVs last longer than tempering valves. Tempering valves are usually replaced, not repaired when needed. TMVs are generally repaired where possible. via

What happens when a mixing valve fails?

A defective mixing valve will allow a cross-over of hot and cold water, even though there are no visible signs of trouble or leak. A plumbing cross-over can cause a complaint such as 'water not hot enough'. via

How long does a mixing valve last?

Your brass mixing valve should last a very, very long time-lifetime (if not damaged). Hard water is more likely to affect cartridge (if you have one) and wears it out earlier than in areas where water is not so hard. I just had to replace my cartridge after only 5 years. via

How much does it cost to install a thermostatic mixing valve?

A plumber may charge $100-$200 to install it. In Part Two of this post, we take a look at the benefits of using a thermostatic mixing valve, and why turning the water temperature down is not the solution. via

Can a mixing valve go bad?

Older model hot water mixing valves age over time and can break down with usage. As a result they can begin to fail in correctly controlling water temperature. via

How long does a thermostatic mixing valve last?

The valves are easy to move against pressure. Control the volume from off to full on by leaving them set to the same temperature. The system costs about $30 to replace, but they last for 20 to 30 years. via

How do you install a thermostatic mixing valve? (video)

How much does it cost to replace a mixing valve?

Answered by Guest_9557697: It depends on how difficult it is to get to the valve... the value costs about $75 to $100, the rest is labor. via

How do you test a mixing valve?

  • Measure the mixed water temperature.
  • Isolate the cold water supply to the TMV.
  • Wait for at least five seconds.
  • Check if the water temperature is below 46ᵒC.
  • If there's no significant temperature change (2ᵒC or less) it means the valve is performing optimally.
  • via

    Can you adjust a thermostatic mixing valve?

    To adjust the temperature of the valve, you have to remove the cap. The temperature should be reduced and the temperature increased until the desired set point is reached. via

    How does a thermostatic mixing valve work?

    HOW DOES A THERMOSTATIC MIXING VALVE WORK? On total failure of the cold water supply, the thermostat element would expand fully and move the slide valve (5) to close on the hot valve seat (6) which shuts down the hot supply and prevents scalding water from reaching the outlet (3). via

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