The minimum velocity in a compressed air pipeline depends on several factors, including the specific application, pipe diameter, desired pressure drop, and flow requirements. However, there are some general guidelines and considerations.
In most compressed air systems, a minimum velocity of 20 to 30 feet per second (6 to 9 meters per second) is often recommended to ensure proper air flow and avoid issues such as pressure drop, moisture buildup, and particulate settling. This range helps prevent the formation of stagnant zones within the pipe and promotes the transportation of compressed air effectively.
It's important to note that these are general recommendations, and specific system requirements may vary. Consultation with an expert or referring to industry standards, such as those provided by the Compressed Air and Gas Institute (CAGI) or the American Society of Mechanical Engineers (ASME), is advised to determine the appropriate minimum velocity for a particular compressed air pipeline.