Tube (fluid conveyance)

There are three classes of manufactured tubing: seamless,[1] as-welded or electric resistant welded (ERW), and drawn-over-mandrel (DOM).

Some of the most commonly used are: In installations using hydrogen, copper and stainless steel tubing must be factory pre-cleaned (ASTM B 280) and/or certified as instrument grade.

Using a safety factor: 33 Tubes are essential components in heat exchange systems to assist with cooling down motors and other instruments.

Industrial applications use pressure-resistant tubes to safely contain gases and liquids under pressure without leading to air leakage or malfunction.

Moreover, devices powered by ultrasound often employ special types of thin-walled tubes that can generate vibration when exposed to an electric field.