The Bradley Navigator® line of thermostatic mixing valves utilizes a unique single-valve system, providing quicker installation, easier maintenance, lower costs and better user protection. Bradley's single-valve technology blends hot and cold water to preset temperatures with pinpoint accuracy. Compared with multi-valve systems, the Navigator makes set-up and start-up easier, especially in a recirculated system. Using an integral port, the tempered water recirculation line is attached directly to the valve body. Therefore, Navigator valves require fewer connections than a multi-valve system, making installation quick and easy. Bradley.