Technical blog
FILTER CARTRIDGE WITH PAPER MEDIA!
The problem
An hydraulic filter cartridge with paper media, even if exhausted, will always keep a straight shape of it pleats as visible in picture
The cause
If the oil is contaminated with water, the paper will tend to SWELL, but being able to dilate itself, pleats will assume the typical "WAVE" shape
The solution
Obviously a SYNTHETIC FILTER MEDIA doesn’t suffer of this swelling and consequently there’ll be no modifications in pleats shape in case of dissolved water contamination.