The safety valve is a relatively special branch of the valve family. Its particularity is because it is different from other valves that only play a role of switching, and more importantly, it plays a role in protecting the safety of the equipment.
Safety valves are generally divided into spring-type safety valves, lever-type safety valves, and pulse-type safety valves according to their structure. Among them, spring-type safety valves are commonly used; according to the connection method, they are divided into threaded safety valves and flange safety valves. The diameter of the safety valve is generally not large, the commonly used ones are between DN15mm-DN80mm, and more than 150mm are generally called large-diameter safety valves.
A safety valve is a special valve whose opening and closing parts are normally closed under the action of external force. When the medium pressure in the equipment or pipeline rises above the specified value, the medium is discharged outside the system to prevent the medium pressure in the pipeline or equipment from exceeding the specified value. .
Safety valves belong to the category of automatic valves, which are mainly used in boilers, pressure vessels and pipelines. The control pressure does not exceed the specified value and plays an important role in protecting personal safety and equipment operation. Note: The safety valve must be pressure tested before it can be used. Sanitary safety valves (including welded, fast-mounted, and free-to-use) safety valves are closed when the pressure is normal.
This safety valve is widely used in food, wine, beverages, dairy products, toothpaste cosmetics, biopharmaceutical and other industries.