Water and Foam Fire Suppression System

Fire sprinkler systems consists of a water storage tank, fire pump, control valve, dedicated pipework and sprinkler nozzles.During normal operation the system is charged with water, however, during the colder months systems are charged with air to avoid the possibility of freezing. Sprinkler water storage, fire pumps and control valves are designed and rated by the size and type of fire risk involved. The types of sprinkler discharge heads its discharge model and flow rates are specified by the hazard classification and the determined fire risk protected against.

Flexible Sprinkler Droppers Simplify the installation of sprinkler systems and allow for the ease and convenience of repositioning the discharge heads. We offer both upbraided and braided UL listed flexible droppers

Deluge systems are systems in which all sprinklers connected to the water piping system are open. These systems are used for special hazards where rapid fire spread is a concern, as they provide a simultaneous application of water over the entire hazard. Water is not present in the piping until the system operates. To prevent the water supply pressure from forcing water into the piping, a deluge valve is used, which is a mechanically latched valve. It is a non-resetting valve, and stays open once tripped. Because the sprinklers are open, the deluge valve must be opened as signaled by a fire alarm system. The type of fire alarm initiating device is selected mainly based on the hazard e.g., smoke detectors, heat detectors, or optical flame detectors, The initiation device signals the fire alarm panel, which in turn signals the deluge valve to open allowing water to enter the piping system. Water flows from all sprinklers simultaneously

Fire-fighting foam systems are used for fire suppression. It works by cooling the fire and coat the fuel,preventing its contact with oxygen, resulting in suppression of the fire. The system must produce foam in concentration of less than 1%. Other components of fire-retardant foams are organic solvents corrosion inhibitors. Low-expansion foams have an expansion rate less than 20 times. Foams with expansion ratio between 20 and 200 are medium-expansion. Low-expansion foams such as AFFF are low-viscosity, mobile, and able to quickly cover large areas. High-expansion foams have an expansion ratio over 200 – 1000. They are suitable for enclosed spaces such as hangars, where quick filling is needed. Alcohol-resistant foams contain a polymer that forms a protective layer between the burning surface and the foam, preventing foam breakdown by alcohols in the burning fuel.

Gaseous Fire Suppression Systems

Halocarbon systems are recognized by NFPA as clean agents to suppress all A, B, C classes of fires especially in normally occupied protected spaces such as control rooms, museum, libraries and etc.Nowadays, because of many advantages such low pressure and no Barotraumas danger, no suffocating dangers, these systems going to be first choice of clients to protect the areas by a gaseous system

Some advategaes of Halocarbon systems are:
1-Smallest required space to install hardware than other gaseous systems.
2-Low initial cost than other gaseous systems.
3-Fastest discharge; Extinguishing time (10s ~ 30s)
4-Safe agent regarding any suffocation or barotraumas.
5-Protection of either normally occupied or non-occupied spaces

Inert gas is used as a fire suppressant based on the principal of oxygen depletion. In an enclosed space inert gas reduces the oxygen concentration to a level (12-13% by volume) where combustion is no longer supported and at the same time acceptable level for human exposure over short periods provided the system is correctly designed. Inert gas is effective against fire in almost all combustible materials and flammable liquids and is particularly suitable for use in areas where the application of water, foam or powder is unacceptable. It is however not suitable for fires in substances that generate oxygen.