A Hydrant Valve is a vital component of a fire protection system, designed to control the flow of water to fire hydrants. The hydrant system allows firefighters to attack the source or seat of the fire from a distance, and hydrant valves are its outlets that deliver water with intense pressure, to drowse the fire. You can visit: http://www.palladiumss.com/fire-fighting-equipments-hydrant-valve-and-accessories-hydrant-valve-gm for more information.