A thermostatic mixing valve (TMV) is a device that blends hot and cold water to deliver water at a safe and consistent temperature. It automatically adjusts the ratio of hot and cold water, ensuring that the output temperature remains stable, even if the supply temperatures fluctuate. This is particularly important in preventing scalding, especially in settings like homes, hospitals, and schools. TMVs are commonly used in plumbing systems for showers, sinks, and bathtubs. They enhance safety and comfort by providing a reliable water temperature, making them essential in both residential and commercial applications. Regular maintenance of TMVs is recommended to ensure optimal performance.