FIRE PROTECTION SYSTEMS

Fire Hydrant System

A fire hydrant is an active fire protection measure; it is a source of water, provided to enable fire fighters tap water for extinguishing fire whenever there is a fire outbreak. Fire hydrants are generally placed external to a building. Internal hydrants may be installed if some portion of the building cannot be protected by an external one. Multiple hydrants may be required in your system design depending on the size of the property and the reach of the hoses.

Hydrant Performance
The pressure available to fire hydrants is important. There must be sufficient pressure so that the fire hose nozzles can force the water to break into fine droplets which is the most effective against fires. The pressure must also be sufficient to allow multiple hydrants to operate at the same time without disadvantaging the rest of the system.

The flow rate and residual pressure may increase due to the number of hydrants and installed positions and the mains pressure or pumping requirements. If the water supply cannot meet the pressure requirements a pump is required. Your system design must allow all hydrants, including the most hydraulically disadvantaged, to operate at the required minimum flow rate.

Types of Hydrant System
Wet hydrant system: In a wet-barrel design, the hydrant is connected directly to the pressurized water source. The upper section, or barrel, of the hydrant is always filled with water, and each outlet has its own valve with a stem that sticks out the side of the barrel.

Dry hydrant system: The hydrant is separated from the pressurized water source by a main valve in the lower section of the hydrant below ground. The upper section remains dry until the main valve is opened by means of a long stem that extends up through the top, or bonnet, of the hydrant. There are no valves on the outlets.

Sixmo Technologies designs, supply, installs and maintains fire hydrant systems for a variety of commercial and residential buildings, industrial areas, public areas, hospital environments etc. We can provide the fire protection you need - please contact us today.