Xi'an has a high density of carbon dioxide fire extinguisher, about 1.5 times that of air. At atmospheric pressure, the carbon dioxide will be immediately vaporized liquid, generally produce 1kg of liquid carbon dioxide of about 0.5 cubic meters of gas. Thus fire extinguisher maintenance, fire fighting, carbon dioxide gas can be ruled out in the combustion air to surround the object surface or distributed in relatively confined space foam fire extinguishers, fire extinguisher reducing the oxygen concentration surrounding combustible materials or protective space, resulting in suffocation and fire. In addition, carbon dioxide is discharged from the storage container, will be made of liquid rapidly vaporized gas fire extinguishers, and attract some of the heat from the surroundings, play a role in cooling. Use fire-extinguishing system in Xi'an, Practical: fire extinguishing system is mainly applied to computer room, communications room, power distribution room, transformer oil, owned generator room, library, archives, museums and bills, library and other places of cultural relics It can be used for fighting electrical fires, liquid fire or melted solid fire, solid surface fire and can cut off the air supply of gas before extinguishing fire. Fire extinguisher maintenance, fire-fighting equipment Shaanxi Jiwei (certification), provided by the Shaanxi Baoji extinguisher Fire Equipment Co. Jiwei. Shaanxi Jiwei Fire Equipment Co. (www.jiweixiaofang.com) (www.jiweixiaofang.com) is Xi'an, other leaders, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer demand. Jiwei leader in fire-fighting equipment in Shaanxi with the staff warmly welcome all inquiries negotiations to create fire-fighting equipment Shaanxi Jiwei better future.