oil catch can filter foam

G'day, this may be what you seek or the other one? Plenty more on fleabay

Can't post links sorry.

http://www.ebay.com.au/itm/UNI-FILTER-SAFARI-SNORKEL-RAM-HEAD-COVER-PRE-FILTER-43-BLACK-/201129393193?pt=AU_Car_Parts_Accessories&hash=item2ed43efc29#ht_3083wt_1363

http://www.ebay.com.au/itm/AIRFLOW-SNORKEL-3-PRE-CLEANER-FILTER-SOCK-/291217465747?pt=AU_Car_Parts_Accessories&hash=item43cde9e193#ht_4969wt_1363

I would keep in mind, the usual stainless steel mesh will provide some cooling effect that will
help the oil mist condense out and the steel mesh will also drain freely.

If you use foam you need to ensure the foam won't clog with oil and slug prevent free airflow else the pressure will be up in your sump.

If you want a filter type unit I would recommend you go for a provent type unit, they have safety measures built in should the filter get blocked such as pressure release and pressure bypass.

Cheers
Leigh

I am aware of the Provent 200 and how good they are, they are also too big to fit in the available space I have, which is why I am making my own. My concern with s/s as a filter medium is if any strands come loose any go thru turbo, i/c and onwards.

Kevin

I used these type of s/s pads, very suitable for catch can. LesPK, I can't post links using the tab.........hence the links here.

http://www.globeequipment.com/Content/Images/434_1.jpg

If you are concerned about the stanless scourer breaking up and getting into the works I would be far more concerned about the foam.

The foam pictured above is a flter foam that has been arround for quite some time, one brand name for it is "Mirocel".....it has been used for various purposes from the old ram flow filters, airconditioning filters to speaker grills....I useed a few square meters of it my self

Yes it is oil and solvent tolerant to some extent, but let me assure you that it perishes, breaks down and falls appart.

Those stanless scourers are pretty tightly woven and more or less continuous strands....back 30 years or so that is all many lawn mowers and air compressors had for air filters.....oiled stanless wool.
The likelyhood of strands comming loose is pretty small.


now back to youir catch can.

remember one thing,

the primary way that catch cans and other condensation chambers work is to slow and cool the air flow.....if the oil remains vapour, it will go straight thru any type of filter you put in there.

The same applies to compressed air...if air remains hot and the liquid remains vapour it will go straight thru any filter or trap you put it thru.

SO, two things are important, surface area to cool the chamber and cross-sectional area.

If the air is cooled and slowed sufficiently the oil will drop out of airflow with no help required from a filter material.

There are a number of things you can do to improve efficiency like
mounting the chamber somewhere cool
making sure the inlet and outlet are seperated as much as possible
introducing a swirling action so the incomming air contacts the sides of the container thus promoting condensation.

But the major efficiency factors are crossectional area and surface area.

cheers