Underground fire hydrant is an outdoor ground fire water supply facility.It is used to supply water to the fire truck or directly connect with the water belt and water gun to extinguish the fire. It is a special facility for outdoor necessary fire fighting water supply.It is above the ground, obvious signs, easy to use.It is composed of body, elbow, valve seat, valve disc, drain valve, valve stem and interface and other parts.Overground fire hydrant is an essential fire fighting equipment in the city, especially in urban areas and areas with fewer rivers, to ensure the need for flood fighting.Factories, mines, warehouses, yards, freight yards, high-rise buildings, public places and other densely populated areas should be installed if possible.Product structure, reliable performance, easy to use, will help you to cope with the disaster may occur at any time.