Air release valves are an important component in water applications, as they help ensure efficient operation of the system while preventing air-related challenges and protecting the integrity of the system. Such valves play an important role in many water applications, including pressure relief cocks and irrigation systems, because they have the capability to automatically discharge air that has become trapped. Air release valves shall be installed in an upright position at the high point of a system and the air inlet facing downward. When the valve closes, and this goes along with its installation, it needs to be remembered that a little liquid should come out of this valve. So the output flow line must go in an open drain area. If maintenance is warranted, there should be a shut-off valve under the valve.