Thermostatic Mixing Valve Testing

Thermostatic mixing valves, also known as TMVs, are used in commercial plumbing systems to blend hot and cold water to provide a safe and consistent output temperature, usually for showers and faucets. Testing a thermostatic mixing valve (TMV) is important for several reasons:

  1. Safety: TMVs are designed to prevent scalding by ensuring that the water temperature does not exceed a safe limit. Testing the valve ensures that it is functioning properly and providing safe water temperatures.
  2. Compliance: Your local water authority has regulations that require regular testing and maintenance of TMVs in public buildings and commercial properties. Testing annually ensures that the building is in compliance with these regulations.
  3. Energy efficiency: A malfunctioning TMV can lead to hot water being wasted, which can result in higher energy costs. Testing can identify any issues and ensure that the valve is functioning efficiently.
  4. Preventative maintenance: Regular testing of the TMV can help to identify any potential issues before they become major problems. This can save time and money on repairs and replacements in the long run.
  5. Water Quality: A malfunctioning TMV can also affect the water quality. Testing can identify any issues that may be causing contamination of the water.


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