centrifuge bypass oil filter

[quantum500]

Looking for good used ones for heavy equipment.  I'd be interested in experiences with the various styles and brands too.  Seems the centrifuge is the best because it removes any thing including moisture and anti-freeze.  Is that correct?

[Brassman]

The centrifugal lube oil filters that spin in a can from engine oil pressure remove heavy solids. The ones I have experience with have no method to remove water.

[tekebird]

I have a brand new unused one, which also has a heating eliment which facilitates the removal of H2O and antifreeze liquids

email me off the board if interested in it

[quantum500]

The centrifugal lube oil filters that spin in a can from engine oil pressure remove heavy solids. The ones I have experience with have no method to remove water.

Yeah your right after I did a little more research.  As Teke pointed you you need heat, or there are some that absorb water with a filter element.  But that can cause "channeling" of the filter element and make the filter less effective.  That is the case of a bypass filter with no centrifuge.  Anyhow learning as I go.

[JohnEd]

Hot oil is thinner and you can pass it thru the filter faster and get the same filter performance as cold oil passed thru slowly.  Hot is better.

Water is in suspension and as you know it will "settle out" over time.  It is gravity that causes the separation and a cent is a device that uses G force to separate although the cent should be generating 6 or more G's for quick settling.

Now here is your problem:  Those on-board filters that run off of oil pressure have a design flaw of sorts.  When the engine is stopped the cent spins down and all the oil in it drains back to the crank case.  The solids are left packed in the cent wheel.  It will definitely separate water or glycol but it will dump that back into the engine so there is no gain in that department.  The fix is to switch the oil return to a Glop tank before you stop the engine that way the oil in the filter won't go to the crank case.

Google "simple centrifuge" for an alternative and thoughts.

John