To understand the importance of a fire system, we must understand what a fire consists of?
A fire is an uncontrolled fire event that can affect or burn something that is not intended to burn. It can affect structures and living beings. The exposure of living beings to a fire can cause very serious damage.
That is why the main objectives of a fire system are:
- Save lifes
- Save assets
- Maintain the line of business.
Hydrant networks are an arrangement of pipes, valves, hose connections and equipment installed in a building, located so that water can be discharged in jets or spray patterns through hoses and nozzles, for the purpose of extinguishing a fire. fire
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Types of Hydrant Networks
Class I System
It is a system that provides connections for 2 1/2” hoses to supply water for use by the fire department. These services must be capable of covering the requirements of firefighting even in its most advanced phases. They must also be able to protect both facilities and people against fire.
Hydrants, also known as fire hydrants, are equipment that is connected to the water supply network and whose function is to supply water in the event of a fire. Although there may be exceptions, hydrants are placed on the outside of buildings and must always be correctly marked.
It must be taken into account that hydrants are governed by regulations and must ensure that the equipment used to extinguish the fire is compatible. Furthermore, it is very important that they guarantee a minimum water flow and pressure.
Class II System
A system that provides 1 ½” hose stations to supply water for use primarily by trained or fire department personnel during initial response
A hose system consists of a series of piping with hoses and discharge nozzles, located throughout the plant. When an accident occurs, personnel previously trained in handling hoses fight the fire. Hose systems with highly trained personnel and proper maintenance are highly reliable, providing both personnel and property with a high level of safety.
The hose system has its pipe filled with pressurized water, when the fire starts, the water is discharged through the hoses that provide a gradually uniform spray due to the rotating position given to the nozzles on the hose.
Hoses must be available to reach all parts of an area with 30,5 m (100 ft) of hose plus 9,1 m (30 ft) of hose blast distance
Any hose mentioned can be activated individually when used, they are subject to exterminating a fire under conditions for their design and scope.
Class III System
A system that provides 1 ½” hose stations to supply water for use primarily by trained personnel or the fire department during initial response and 2 1/2” hose connections to supply water for use by the fire department
Hydrant network components
Each fixed hydrant network has different components:
- Nozzles
- Valves
- Hoses
- Cabinets
- Pipelines
- Accessories
All elements and accessories used must be manufactured and approved according to recognized and accepted engineering standards.
Monitors
The monitors are fixed equipment, installed to the fire network through rigid installations, to which a countless number of fire protection equipment can be connected, from simple to the most sophisticated foam ones.
Testing and inspection of hydrant systems
Since water hydrant systems are essential components of firefighting, they must be tested and inspected periodically so that they are always ready. Tests must be carried out before construction certification and then at appropriate intervals to check its operation.
