WATER-BASED FIRE SUPRESSION


WATER-BASED FIRE SUPRESSION


These facilities may be classified into two large groups:

a) Hydrant networks b) Sprinkler systems

a) Redes de Hidrantes
b) Sistemas de Rociadores


HYDRANT NETWORKS

There are several design options for these networks, based on the characteristics of the risk (industrial plants, high rise buildings, warehouses, tank yards, etc.), which will in turn affect the construction features and the elements to be used.

Closed loops with double 21/2” hydrants, columns with mid- and long-range monitors, and overhead or underground black iron or HDPE pipes are some of the options normally used to protect large industrial plants, mine sites, distilleries, grain storage plants, etc.

Upright units or networks with 1 3/4” fire hydrants are suitable for high-rise buildings such as family dwellings, business offices, hotels, etc.

A combination of both is also used to protect risks such as logistics centers, medium-sized manufacturing plants, or other specific risks.

Networks which are shared to feed hydrants, sprinklers and/or foam-based systems require specific design considerations in order to factor in the concurrent demand.

On the basis of local, municipal and/or international, as well as insurance regulations, MELISAM designs, supplies and installs the system that is best suited to meet the needs of the risk to be protected.


SPRINKLER SYSTEMS

Water-based suppression systems consist mainly of sprinklers for cooling, fire suppression and/or control purposes.
Sprinkler systems may be classified according to the following:

a) According to sprinkler type

  • Automatic sprinklers
  • Protectospray nozzle
  • Cooling nozzles
  • Spray water nozzles

b) According to system type

  • Wet system
    Offices, warehouses, shopping centers, parking lots, etc..
  • Dry system
    Cold stores, frozen product racks, etc.
  • Pre-action system
    Document storage facilities, telephone rooms, and electronic equipment
  • Deluge system
    Solvent extraction plants, transformers, LPG tanks

c) According to activation method

  • Automatic
  • Manual
  • Combined

In addition, there is a wide range of automatic sprinklers to consider when designing a fire-fighting system, including the various activation temperatures (68°C, 100°C, 141°C , etc.); response type (standard or quick); type of installation (upright, pendent, wall-mounted, in-rack, etc.), scope (standard or extended coverage), and discharge flows (standard , ELO , ESFR, etc).

MELISAM has an engineering and works department knowledgeable in local and international standards (NFPA, FM, GLOBAL RISK, etc.), As well as state-of-the-art IT support to design and install the sprinkler system that is best suited to each risk.