Tempering valves, also known as mixing valves or thermostatic mixing valves, are plumbing devices used to control and regulate the temperature of water in various applications. Here are some aspects to consider when it comes to tempering valves:

  1. Function: Tempering valves blend hot and cold water to achieve a desired and safe outlet temperature. They ensure that water delivered from a hot water source, such as a water heater or boiler, is mixed with cold water to prevent scalding and provide a comfortable and safe water temperature.
  2. Scald Prevention: One of the primary functions of tempering valves is to prevent scalding injuries. By mixing hot and cold water, the valve ensures that the water temperature at the outlet does not exceed a certain preset temperature, typically between 38°C (100°F) and 49°C (120°F). This helps protect against accidental burns, especially in settings such as showers, bathtubs, and sinks where users can be vulnerable to hot water.
  3. Safety Compliance: Tempering valves are often required by building codes and regulations, particularly in commercial and multi-unit residential buildings. They help ensure compliance with safety standards by maintaining safe water temperatures and minimizing the risk of scalding incidents.
  4. Installation Locations: Tempering valves can be installed at various points in a plumbing system, depending on the specific application. Common installation locations include water heaters, showers, bathtubs, sinks, and commercial applications like hospitals, schools, and care facilities.

When considering the use of tempering valves, consult with a professional plumber or building professional to assess your specific needs and ensure compliance with local codes and regulations. They can provide guidance on the appropriate type, installation location, and maintenance requirements for tempering valves in your plumbing system.