Design,  P,  Piping & Supports

Pipe Schedule

A designation of a pipe product that relates to its wall thickness. In general, as the pipe schedule number increases, the thicker the wall thickness becomes.

Here are a few examples of how pipe schedules are related to pipe thickness:

Pipe size 1.000 in. (33.401 mm OD), Schedule 40 – The actual wall thickness is 0.133 in. (3.38 mm)

Pipe size 2.000 in. (60.325 mm OD), Schedule 40 – The actual wall thickness is 0.154 in. (3.91 mm)

Pipe size 1.000 in. (33.401 mm OD), Schedule 80 – The actual wall thickness is 0.179 in. (4.55 mm)

Pipe size 2.000 in. (60.325 mm OD), Schedule 80 – The actual wall thickness is 0.218 in. (5.54 mm)

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