Water extinguishers extinguishing agent is water. Water has a low viscosity at room temperature, high thermal stability, greater density and high surface tension, is an ancient and use a wide range of natural extinguishing agents, easy to access and storage. It is mainly rely on cooling and suffocation put out the fire. Because each kilogram of water was heated from room temperature to the boiling point and evaporates completely, it can absorb the heat 2593.4KJ. Therefore, it uses their ability to absorb sensible and latent heat of the fire exert a cooling effect, it is the other extinguishing agents can not match. Also steam fire equipment offer, after the formation of water is vaporized inert gas fire-fighting equipment, and the volume will expand about 1,700 times. Xi'an fire extinguisher through functional inspection found problems, must be entrusted to a qualified repair service unit for maintenance, the replacement of damaged parts, cylinder pressure test, re-filling fire extinguishing agent and driving gas. Maintenance units must strictly implement the fire extinguisher system scrapped. Fire extinguisher refill every five years and prior to each of its main pressure parts to Xi'an fire equipment, such as head, cylinder and so should the hydrostatic test, successful candidates will use before proceeding. After the test should be dried and check the wall, there should be no obvious rust. Pressure test failed, not allowed to use other methods of welding repair using. Fire equipment company | Xianyang Fire Equipment | [quality] provides trusted by the Fire Equipment Co., Ltd. Shaanxi Jiwei. Shaanxi Jiwei Fire Equipment Co. (www.jiweixiaofang.com) (www.jiweixiaofang.com) strong, credible, in other industries, Xi'an has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Shaanxi JW firefighting equipment into the brilliant and you work for a better future!