A pipe constitutes a hollow cylinder or tubular section, often of circular cross-section. Its primary function is to transport substances that can flow, including liquids, gases, and even certain solids. However, due to its hollow structure, pipes can also be used for structural strength in construction and engineering. Common usage often equates the terms ‘pipe’ and ‘tube,’ but they have specific definitions within industrial and engineering contexts. Pipe specifications typically revolve around a nominal diameter and a schedule that determines the thickness. It’s manufactured in accordance with several international and national industrial standards. While the word ‘tube’ can refer to non-cylindrical or even rectangular sections, ‘pipe’ generally signifies a level of rigidity and permanence. Pipe assemblies are often built using fittings like elbows and tees, enabling the pipe system to adapt to varying layouts and application requirements.