Fire hydrants

Fire Hydrants, also known as firefighting hydrants, are essential elements used for combating fires outside the boundaries of a building. Their primary purpose is to fight fires from the exterior when the fire inside the building reaches a level that is difficult to control, or when it becomes too dangerous for firefighters to combat the fire from within. Fire hydrants are also used for external firefighting in open areas such as warehouses and uncovered parking lots.

A fire hydrant consists of two outlets, each with a diameter of 2.5 inches. The front outlet, with a diameter of 4 inches, is used to refill fire trucks when their onboard water supply runs out. Fire trucks are equipped with tanks and pumps; without water, they are ineffective. Therefore, they must be refilled using fire hydrants to continue fighting fires efficiently.

The pressure for Landing Valves ranges from 6.9 bar to 12 bar, which is the same pressure used in fire hydrants. The minimum flow rate is 500 GPM (gallons per minute), as each outlet requires 250 GPM for firefighting operations.