Suitable for medium pressure based jobs, Auto Drain Valves are used for effective removal of compressor lubricants present in compressed air system. These valves are useful to reduce labor cost associated with the maintenance of various industrial equipments. Presence of these valves can be noticed in the designing of air receiver, moisture separator, filtering system etc. These valves can be installed in areas where manual discharge of sewage is quite difficult. Operating temperature and pressure of these valves depend on their design. Standard of these valves has been checked as per their diameter, service life, performance and design precision.