[RomanKatz]

Hello,

I am looking for industrial oil filter for our oil production lines.

Where can I find information regarding oil filter calculations?

In other words how can calculate the parameters for the filter I need?

Thanks very much.

[curiouscat]

What kind of oil? What application? What flow rates? What do you want to filter out of it?

[RomanKatz]

Some additional info:

Oil is produced at mixing tanks and then transferred  through the filter to storage.

Oil products viscosities are 30-300 CSt at 40degC
The pump Q is 200LPM
The requested filter is to be installed on 2'' pipe.

The requested filter has to remove welding and rust remains. I believe that the size of these particles is about 100 micron.

[RomanKatz]

I found out that the delta P formula is:

dP= [(Q/Cv)^2]*133.6
Q-m3/hr
Cv=flow constant
dP=kPa

Cv represents the parameters of the filter, including mesh, free space and whatever.

an example of Cv can be seen at
http://www.eaton.com/Eaton/ProductsServices/Filtration/ManualPipelineStrainers/SimplexBasketStrainers/Model72Basket/index.htm#tabs-1

[Enthalpy]

Do you ave 3.3dm³/s in an ID=50mm pipe, needing 1.7m/s speed of an oil up to 0.0003m²/s viscosity, that is up to 250mPa*s? That's a lot...

Two ways for the filter to resist the resulting pressure drop:
- Make it very strong, of sintered steel and spherical section. I had extremely strong filters that sintered a fine stainless mesh with a medium and a coarse one. But depending on the amount of removed debris, the D=50m filter may clog;
- Or make it much wider (but still strong enough...) to reduce the pressure drop and fold it to limit its volume, as is done with most filters. The intermediate version would be a cylinder or long cone.

[RomanKatz]

Thanks,

Any other considerations I should consider?

The filtering area should be between 4-6 times the flow area. Is that correct?

Any other issues I need to consider before I order the filter?