Blends hot and cold water by sensing incoming water temperature and automatically blending it to 85° F. High temperature limit stop is set to 90° F. Features dial thermometer on outlet to monitor temperature of delivered water. If hot water supply is restricted or fails, 20 gpm of cold water at 30 psi can be delivered. If cold water supply is lost, valve will close and not deliver water. 6-Gal. capacity valve has flow capacity of 2 to 6 gpm and can be used with eyewash, eye/face wash, dual purpose eyewash/drench hose and drench hose units.