Water Extinguishing Systems

Logic Global Company

– SPRINKLERS

Sprinkler firefighting system is the mostly used at many open places areas, and some are designed for homes. Simply water under pressure will be saved on pipes behind walls and ceilings, Sprinklers will be activated only when fire heat reaches them. The sprinkler sprays water will react so quickly to any fire heat, and will start working to control the flames, and limit the arise of toxic smoke, as well as reducing the heat. In many cases Sprinkler firefighting system can effectively control and extinguishing the fires.The approximated amount of water to be released by fire sprinklers is 10-25 gallons of water per minute. Think how many minutes will take the fire department to arrive your place??
The usage of Sprinkler firefighting system is mostly in open areas, like tourism places, hotels, golf courses, and parks. Many modern residential communities apply Sprinkler firefighting system within its developing model.
Why to use Sprinkler firefighting system?
Can save lives effectively
Relatively low cost for large areas
Fast re-action
Low damages on property

– FOAM

WHAT İS FOAM Suppression SYSTEM ?

    Water + Foam Concentrate + Air => Foam

  • Lower density than oil and water. 
    • It is a stable mass from small bubbles. 
    • Adheres to vertical and horizontal surfaces. 
    • Observing a cover on the burning liquid, it prevents the entry of air and the outflow of flammable gases. These properties can last for a long time. 
    • Especially effective in class A and B fires.

There different types of foam according to expansion:

  • Low expansion foam: (expansion ratio from 0 to 20)
  • Medium expansion foam: (expansion ratio from 20 to 100)
  • High expansion foam: (expansion ratio from 100 to 200)

WHERE IS USED?

The foam fire suppression system are used in a wide range of applications, such as:

  • Aircraft hangars Fuel tanks with fixed or movable roof,
  • warehouses & storage Areas for, hydrocarbons, plastics and rubber such as tires, etc.
  • Electric generators
  • Open area fires containing fuel or oils using foam / water Monitors

There are different kinds of foam concentrations like:

  • FP
  • FFFP
  • AFFF
  • AR-AFFF

STANDARDS

High expansion foam systems are calculated based on “NFPA 11 Standard for Low-Medium and High Expansion Foam”, NFPA 11A, NFPA 11C,”NFPA 16 standard for installation of foam-water Sprinkler & foam-water spray systems” ,ISO 7076 & other similar standers

– WATER MIST

Water mist systems are used for special applications in which it is decided that creating a heat absorbent vapor is the primary objective. This type of system is typically used where water damage may be a concern, or where water supplies are limited. NFPA 750[9] defines water mist as a water spray with a droplet size of “less than 1000 microns at the minimum operation pressure of the discharge nozzle.” The droplet size can be controlled by the adjusting discharge pressure through a nozzle of a fixed orifice size. By creating a mist, and equal volume of water will create a larger total surface area exposed to the fire. The larger total surface area better facilitates the transfer of heat, thus allowing more water droplets to turn to steam more quickly. Steam, which absorbs more heat than water per unit time, will then more effectively cool the room, thus reducing the temperature of the flame.

Water mist firefighting system is a fire protection similar to the Sprinkler firefighting system, the main difference is the “Reactive Surface Area Per litre of Water” which is higher in Water mist firefighting system to reach 3000-6000m², comparing to 2m² in sprinkler system. It means Water mist firefighting system can be much more effective than traditional sprinkler systems.
Another difference is the Operating Sensitivity / Speed (R.T.I.), which is extra fast in Water mist firefighting system (2.5mm Bulbs:18.9) compared to sprinkler system (3mm Bulbs: 50). Simply it means that, Water mist nozzles can detect and start actuate in a fire 2.5 times faster than sprinkler head which has an RTI of 50.
The usage of Water mist firefighting system is mostly in open areas, like tourism places, hotels, golf courses, and parks. It`s usage increase in High temperatures and low humidity weathers.

Why to use Water mist firefighting system?
Immediate activation 2 times and half more than sprinkler system
Minimized water damage
Effective in High temperatures and low humidity weathers.
Save lives – no toxic problems

Operation – Water mist systems can operate with the same functionality as deluge, wet pipe, dry pipe, or pre-action systems. The difference is that a water mist system uses a compressed gas as an atomizing medium, which is pumped through the sprinkler pipe. Systems can be applied using local application method or total flooding method, similar to Clean Agent Fire Protection Systems.

A water spray for which the Dv0.99, for the flow-weighted cumulative volumetric distribution of water droplets, is less than 1000 microns at the minimum design operating pressure of the water mist nozzle.

Water-based fire suppression systems that use a specific spray (mist) that absorbs heat, displaces oxygen, or blocks radiant heat to control, suppress, or extinguish fires as required by the application.

Low Pressure System. A water mist system where the distribution piping is exposed to pressures of 175 psi (12.1 bar) or less.

Intermediate Pressure System A water mist system where the distribution system piping is exposed to pressures greater than 175 psi (12.1 bar) but less than 500 psi (34.5 bar)

High Pressure System A water mist system where the distribution system piping is exposed to pressures of 500 psi (34.5 bar) or greater

A distribution system connected to a water supply or water and atomizing media supplies, that is equipped with one or more nozzles capable of delivering water mist intended to control, suppress, or extinguish fires and that has been demonstrated to meet the performance requirements of its listing and this standard.

Types: Dry Pipe, Engineered, Local-Application, Pre-action, Pre-engineered, Wet Pipe.

Technical equipment:

All listed materials and devices shall be installed in accordance with their listing. All other materials and devices shall be installed in accordance with the system design manual.

– System components shall be located, installed, or suitably protected so they are not subject to mechanical, chemical, or other damage that could render them inoperative.

– Manufacturers shall provide installation and testing procedures to ensure that the system is installed and will operate as intended.

The Water Mist System is unique. Water is forced through micro nozzles at very high pressure to create a water mist with the most effective fire fighting drop size distribution. The extinguishing effects give optimum protection by cooling, due to heat absorption, and inerting due to the expansion of water by over 1,700 times when it evaporates.

The Sem-Safe Water Mist System provides better protection for personnel and surroundings and minimises potential water damage, as the majority of the water mist evaporates. The Sem-Safe Water Mist System is available for total flooding, local applications and deep fat fryers, and also as a high pressure or low pressure system.

Water Mist testing and applications have captured the interest of fire protection professionals in recent years, spawning numerous seminars, technical papers, and research efforts. While water mist technology is not new, the recent surge in interest has resulted in the formation of an NFPA Committee on Water Mist Suppression Systems that may draw us closer to the day when fire protection professionals will be specifying, designing and installing water mist systems for a wide variety of applications.

Last month’s edition included discussion relative to the theory of water mist systems, research efforts, shipboard applications, and aircraft applications. This article concludes with several additional applications for water mist, including possible alternatives for existing halon systems, and applications where water mist may serve as an alternative to traditional sprinkler systems in areas with severely limited water supplies.

It uses only air & water, combination of which produces water mist & it uses less quantity of water compared toconventional Fire Extinguishers.

  • No maintenance & operational cost required.
  • Equipments can reach to high raised building and congested area easily which can avoid the spayed up fire and extinguished the fire with in few sec time.
  • There are no requirements of power which can generate friction and spark.
  • Extinguishing agent is 100% biodegredible and eco-friendly.
  • Equipment is ISO certified and approved by German Safety norms (GS).
  • It can directly apply on electric fire since there is no conductivity of current through water mist particles and it is approved by ERADA.

Water Mist Fire Systems Overview

Water Mist Sprinkler Systems work by breaking water into a cloud of very small droplets that greatly increases the surface area available for absorbing heat. When water turns to steam on contact with the fire it reduces heat and rapidly expands preventing oxygen entering the fire.

Mist systems can use less water than conventional water sprinkler systems effectively suppressing and extinguishing fires but should only be used in fighting fires in contained compartments without ventilation or apertures.

Environmentally friendly and sustainable but should only be used in fighting medium sized fires. Mist systems are not suitable for installation in family homes or other domestic premises.

Water mist systems have been demonstrated to be suitable and effective for the protection of enclosed spaces on board ships and are an emerging technology for fire protection. They have been successfully applied to protect assets such as electronic equipment, machine rooms etc.

Water mist systems are part of an overall package of fire safety measures in contained and enclosed environments and should not be considered in isolation. Water mist systems are similar to a sprinkler system, designed to extinguish flammable liquid fires or to provide cooling to an exposed area likely to be subjected to intense heat from a nearby fire.

One of the key advantages of water mist systems over conventional systems is that they use less water to control a fire. Specially designed nozzles divide the water into a mist of small droplets which increases the surface area for absorbing heat. A second extinguishing effect occurs as the fine water droplets evaporate and rapidly expand. This draws air away from the fire depriving it of its primary fuel, oxygen.

Standpipe & Fire Hoses System :

Fire cabinet systems, which are obligatory to be kept in public apartments, schools, hospitals, prisons, high malls, public housing, are produced by TSE standards by our company. The fire cabinet systems manufactured and delivered in accordance with the legislation with red dyed paint and all internal equipments are delivered by assembling and explaining usage.

All the information such as how to use fire cabinet systems with glass, cover, 360 degree rotating hose, fire wall mounted with firefighting equipment, how to make periodic maintenance, how to use hose, what clothes and equipment are working,

Intervention is provided by the pressurized water from the hose pump inside. It is important to have enough size to fit in the materials inside and to protect your life. It is of vital importance to design and install it in such a way as to provide quick intervention in case of fire. It should be simple enough that even non-educated personnel can use it.

Fire Cabinet Prices

You can find the most suitable fire cabin prices of the market in our company. We offer fire cabinets prepared in compliance with the Regulations and TSE standards at attractive prices together with all the materials inside. We will supply you with the fullest possible use of fire cabinets designed and assembled so that you will get full marks in the inspections to be made.

Prices of fire cabinets vary according to their size and contents. We guarantee to offer the best prices on the market. All of our products are produced from quality materials and are sold with a guarantee. It is our job to protect your premises with proper payment terms.

Spacing and distances:

Every Fire hose cabinet is covering such a certain area, So it should be placed at certain distances on each floor  either it was in stair cases or inside the floors.

Most common types of fire hoses are 30 meters long so designers has to be shore that the water  will be able to reach the farthest point inside the area need to be protected, in some cases it’s need distance between two fire hose cabinets does not exceed more than 50 meters, should also be arranged according to certain  standards.

 Fire cabinets which must be in certain dimensions in buildings built with large manufacturing, indoor parking lots, boiler houses, workshops, warehouses and health, accommodation and gathering intention, can be single capped or double capped according to fire ability.

Fire cabinets with a different decorative structure in the building and a foamy type outside the building will be your closest supporters to possible fires. Fire cabinets that allow simple fires outside the chemical fires to be intercepted by a personnel are offered at the most reasonable prices.

 

Pressure & height

The height & fiction losses inside pipes are very important factors, so the engineers should take it into consideration when designing these systems, Therefore, they make general or detailed hydraulic calculations to ensure that sufficient quantities of water arrive at appropriate pressures from the nozzles and exits of the extinguishing system.