The primary function of a safety valve is to protect not just properties but the lives of people dwelling in particular places as well. It is a safetymechanism that is intended to stop the fluid from flowing after the pressure normalizes. There are many different designs of valves that are available in the market. This is because each would differ slightly with their functions and applications. In addition, the designs vary because it also depends on the national standards where the valves are made. Since it performs a huge task of protecting everyone, it is of paramount importance that you know how to choose one.