After turning vane rotary flow off the air after oil, continue to up after packing, will the air filter layer of oil and other impurities again for the separation and filtering.
If into the dryer compressed airflow and pressure beyond design range, separation effect will decline, liquid water would be through the separator make dryer out of compressed air pressure rise.
Frozen type air dryer by lowering the temperature of compressed air to close to the freezing point of water, that extra water vapor condense into liquid water, thus and flowseparation.