PLANTS FOR NITROGEN Overview The nitrogen is a natural product, present in the air as a main component (78%), and has a remarkable capacity to extinction in the face of any adverse effects on the environment and for people who are exposed during the discharge. Also does not generate any type of reaction in contact with flames or generates decomposition products harmful or corrosive, returning after the download in the natural cycle of the atmosphere. The indices of the environmental impact of nitrogen are very explicit: no effect of destruction of the Ozone Layer (Ozone Depletion Potential = Zero) and the absence of global warming (Global Warming Potential = Zero). Nitrogen is dieletrtico, leaves no residue, not dirty, does not pollute and does not damage the more delicate materials, ensuring a safe and effective protection to goods and persons, ensuring excellent visibility during the discharge and the absence of thermal shock. Extinguishing systems in total saturation are used primarily to protect the risks in environments containing sensitive or high value goods.

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• Principle
The system to inert nitrogen gas based on the concept of protection technique of total saturation. The shutdown of a fire with nitrogen gas is mainly due to the dilution of oxygen in the air, with a concentration passes from 21% to 12%. The merger project varies depending on the risk protection and guarantees a residual oxygen not less than 12% and not more than 14% by volume: a safe for people and effective for the shutdown.

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• Implementation:
The IG system 100 transports the nitrogen through the pipes in vapor, which causes less friction in the pipes than a liquefied gas. This allows you to shift the cylinders of nitrogen even in the most distant relation to be protected. Thus to design a centralized system where the gas can be transported through pipes and discharged into one of the protected areas from a single station cylinders. A fair number of cylinders can be saved in this case thanks to the central station, assuming that there are several simultaneous fires in protected areas from the same battery of cylinders. The system that uses nitrogen gas is designed in compliance with the applicable technical standards, including:
UNI 10877 - "fire-extinguishing systems for gaseous extinguishing
Physical properties and system design "
ISO / DIS 14520 Part 13 "Gaseous fire extinguishing system design properties"
Proposed 1999 Edition of NFPA 2001 "Clean agent fire extinguishing system"
CEA (Comité Européen Assurances) CEA 4008 Fire extinguishing systems using non-liquified inert gases planning and installation "

In addition, the nitrogen has been approved as a medium by various world bodies such as EPA (Environmental Protection Agency), VdS, National Research Institute of Fire and Disaster of Japan, Hita Research Laboratories Chemical Biotesting Center of Japan.

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Areas of application:
• electrical and electronic components
• Telecommunications Equipment
• paper files
• deposits of flammable liquids and gases
• art museums and historical

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INSTALLATIONS ARGON-NITROGEN MIXTURE

• Overview
The Argon-Nitrogen mixture gives rise to an inert gas that extinguishes fire based on the principle of dilution of oxygen (inert). E 'un agent clean and acceptable for the environment, which ensures no potential damage to the ozone layer (Zero Ozone Depletion Potential - ODP) and global warming (Zero Global Warming Potential - GWP). E 'un gas safe for use in a wide range of applications in locations characterized by the presence of people and is electrically non-conductive. Has no residue following the fire, ensuring not to make any damage to equipment protected.

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• Principle
This gas extinguished the fire physically removing the oxygen from the surrounding area. In the places occupied by people, they can breathe in the concentration of extinguishing the fire "without any fear.
There are no factors associated with toxicity of the mixture and also it does not decompose or produce any derivative when it is touched by the flames. The mixture is composed of 50%, respectively, from nitrogen and argon.
E 'shown to act against the fire indoors. Due to its molecular weight very similar to that of the air, it persists longer when it is released to extinguish a fire. This reduces the need for airtight closure for the protected areas, which would cost not indifferent.
In the case of a principle of fire, the mixture is rapidly released into the environment, reducing the percentage by volume of oxygen from the normal 21% to values between 11% and 13%. This is too low to allow the burning but still sufficient to ensure public safety.

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• Implementation:
The extinguishing systems Argon-Nitrogen mixture are shown both for total operations on whole buildings subject to actions on more localized areas.
The gas is contained in batteries of cylinders equipped with safety valves, pressure around 200 bar.
Smoke detectors in places to protect the opening act of a rapid flow valves that control each cylinder and, in the case of a complex system designed to protect different compartments with a central station, the valves direct sorting to the download the area actually affected by fire.
The use of valves for shunting in case of multiple compartments is in fact the solution with the best ratio between efficacy and cost.

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• Areas of application:

• salt control signal rail and air
• laboratories
• control rooms
• Banks
Salt exchange • rail
• the archives of museums
• Libraries
• universities
• theater
• deposits of money
• Electrical boxes
• Telecommunications rooms
• computing centers
• Marine equipment
• art galleries
• petrochemical industries
• pharmaceutical industry