Install an air dryer in the pre-stage of these filters.

Notes:

1. corresponds to the 2nd grade of"compressed air grades" in ISO8573-1", The inlet oil content is 3wtppm.
2. corresponds to the 1st grade of "compressed air grades" in ISO8573-1, The inlet oil content is 3wtppm.
3. converted value by "the test method of oil content" in ISO8573-2. The inlet oil content is 0.01wtppm