It is designed to provide rapid access to water if a fire breaks out. Fire hydrant installation consists of a system of pipe work connected directly to the water supply main to provide water to every hydrant outlet and is intended to provide water for the firemen to fight a fire.

Fire hydrants are used to access water directly from the local mains supply to provide water for fire fighting. They are used in supplying or refilling the tank in a fire fighting appliance. In the event of fire it is vital that firefighters have access to water supplies quickly.