Fire hydrant system is a important firefighting facility that provides a readily accessible source of pressurized water, allowing firefighters to respond to fires quickly. Outdoor fire hydrants, located outside of buildings to provide firefighters with a large supply of water and a steady pressure for them to use from an external water source. Indoor fire hydrants, installed on each floor, are equipped with hoses and nozzles to facilitate indoor fire fighting. Fire hydrant system is an important part of firefighting and often used in conjunction with other systems, such as sprinkler systems and fire alarm systems, to provide comprehensive fire safety and protection.