Xi'an rain alarm valves, deluge alarm valve is to be turned by an electric portable dry powder fire extinguisher, mechanical or other means, so that the water can flow into the sprinkler system to automatically check a one-way valve at the same time the alarm. Xi'an has a high density of carbon dioxide fire extinguisher, which is about 1.5 times that of air. At atmospheric pressure, liquid carbon dioxide is immediately vaporized extinguisher, generally liquid carbon dioxide to produce 1kg of about 0.5 cubic meters of gas. Thus, when abc dry powder fire extinguishers, carbon dioxide gas can be ruled out on the surface of the combustion air and surrounded by objects or distributed in relatively confined space, reducing the oxygen concentration of combustible materials around or protective space, resulting in suffocation and fire. Further stainless steel fire extinguishers, carbon dioxide discharged from the storage container, will be rapidly vaporized gas into the liquid, to attract some of the heat from the surrounding, play a role in cooling. Dry powder fire extinguishers, fire fighting equipment, Shaanxi Jiwei (certified), Xi'an, Shaanxi extinguishers provided by Fire Equipment Co. Jiwei. Shaanxi Jiwei Fire Equipment Co. (www.jiweixiaofang.com) is Xi'an, other leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Fire equipment at JW leadership Shaanxi staff warmly welcome all inquiries negotiations to create fire-fighting equipment Shaanxi Jiwei a better future.