Return filters are meant to filter oil that is drained into an oil reservoir. They can be supplied in different versions;
- Spin-on filters with head used for pipe installation
- Tank top filter, this filter is installed in the tank. Replacing the filter element is easy
Reasons to use a returnfilter;
- Minimal investment
- Less wear in the hydraulic system, more reliability
- Easy to maintain
- Different materials available
- Available with dirt indicator
Tips:
- Choose a return filter with the right filter capacity and connections (the amount of oil that is drained into the oil reservoir can be larger than the output)
- Make sure that the returning oil is below the level of the oil reservoir when using a tank top filter, this prevents foaming