Enter the friction coefficient between the saddle and the foundation. The frictional force is caused by expansions and contraction of the vessel shell if the operating system varies from the atmospheric temperature.
The following table shows some values of friction coefficient, taken from Pressure Vessel Design Manual by Dennis R. Moss 2nd edition, page 156.
|
Surfaces |
Friction Factor (mm) |
|---|---|
|
Lubricated Steel-to-Concrete |
0.45 |
|
Steel-to-Steel |
0.40 |
|
Lubrite-to-Steel |
|
|
Teflon-to-Teflon |
|