In our previous article we have discussed about Nominal Pipe Size now in this article we will discuss about Pipe Schedule Class and how it influences the design and functionality of piping systems. In piping system Schedule class plays very important role because it ensures compatibility and efficiency of various components. In simple term pipe schedule class represents the thickness of pipe.
In Mechanical and Chemical Industry Pipe schedule, often denoted as SCH and it is common language for engineers, designers, and manufacturers, ensuring consistency in material selection and system performance. The primary purpose of a pipe schedule is to establish a common language for engineers, designers, and manufacturers, ensuring consistency in material selection and system performance.
In pipe schedule class there are two important things First is Nominal Pipe Size it mainly represents the internal or external diameter of pipe and second one is Schedule class which represent the schedule class. Let’s understand this with an example SCH 40, the number “40” represents the wall thickness Higher schedule numbers indicate thicker walls.
ANSI and ISO established the Standard pipe schedules. Most common pipe schedule class are SCH 5, SCH 10, SCH 40, SCH 80, and SCH 160. Each schedule corresponds to a specific range of wall thicknesses.
While selecting a pipe schedule class the major factor is important Pressure Rating, Temperature Considerations and material selection. Higher schedule number gives higher thickness which results increased pressure-bearing capacity of pipe. Higher schedule number pipe given better insulation and resistance to temperature fluctuations. pipe schedule influences the selection of materials. a piping system requiring high strength and pressure resistance may necessitate the use of pipes with a thicker schedule.
