What is the primary difference between piping and tubing?

The primary difference between piping and tubing lies in the purpose and manufacturing process rather than just dimensions. Pipes are primarily designed for transporting liquids and gases, which necessitates certain design criteria, including the ability to be threaded for connections. This threading allows for secure joints without the need for specialized fittings, making pipes particularly versatile for various applications.

On the other hand, tubing is typically used in applications that require more precise dimensions or flexibility, such as in structural applications or for connection systems. Tubing tends to have a specific outer diameter and wall thickness that may lead to different pressure ratings compared to pipes. When we say that a pipe is thinner than tubing in certain contexts, it is often referring to the fact that pipes come in various wall thicknesses based on the application. However, pipes are mainly focused on flow capacity and structural integrity, which is why they can be threaded for fittings.

Understanding these differences helps in selecting the correct type of material for a specific application, ensuring system efficiency and safety.