While choosing a high-temperature valve in a chlorine environment, you must consider the following factors. The material from which the valve is made up, its design, and up to what temperature it can work efficaciously. You should also keep in mind the potential threat and chloride ion corrosion a valve can face. High-temperature valves are often used in chemical, power, petrochemical, and other industries. The long time uses of high temperatures will impact on physical effects of materials. Before selecting extreme temperature valves, we need to focus on temperature or factors.