Tube-Tec Bending can provide pipe bending for a range of pipe sizes and materials. Use the table below for more information about pipe dimensions, NPS, schedules, and weights.
NPS, or nominal pipe size, is the North American set of size standards for pipes that are used for temperatures and pressures of all ranges. The nominal pipe size identifies the size of the diameter of the pipe’s hole with a non-dimensional number. Using the NPS, a pipe is identified by its diameter and then with another non-dimensional number for the pipe’s wall thickness. This non-dimensional number is referred to as the pipe’s schedule. Based on the nominal pipe size and the schedule of the pipe, the pipe’s thickness can be obtained from conversion tables like the one below.
What is a Nominal Pipe Schedule?
For pipes of all sizes, the outer diameter remains fairly consistent. Variation in wall thickness affects the ID, or inner diameters, of pipes. Schedule numbers for pipes reference the thickness of the wall on different size pipes. As the schedule number increases, the thicker the wall of the pipe becomes. The schedule number on a pipe increases as the pipe’s wall-size increases, and the wall thickness changes based on a Nominal Pipe Size chart. A basic conversion chart can explain the relationship between schedules, pipe sizes, and wall thicknesses. The most common pipe schedules are schedule 40 pipe dimensions and schedule 80 pipe dimensions.
|Schedule 40 Pipe Dimensions||Schedule 80 Pipe Dimensions|
|Nominal Pipe Size||Outside Diameter||Wall Thick.||Wt. per Ft.||Wall Thick.||Weight Per Ft.|
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