As we read the filter specifications shown on the nameplate, we note that the maximum supported pressure is 3.1 Mpa. When it comes to maximum pressure we understand how the work pressure because the pressure in the sector under normal conditions never reach this value.
Note that pressure and given in Mpa, which means micropascal to Bar just multiply the value by 10.
Thus, 3.1 x 10 = 31
Then 3.1 Mpa = 31 bar
If you want to get the pressure in PSI
1 bar = 14.5038 PSI
31 x 14.5038 = 449.6178
We can see then that the maximum pressure supported by the filter is approximately 450 PSI.