What Kind of Filtration to Choose?

In the last article we have introduced 3 filtration, and now we have 2 more filtration to introduce to you.

Media Based Filtration - This is the mostcommon application used for secondary filtration. Utilizes either full flow or depth filtration to purify the oil. They are very simple to operate and maintain. The media based filtration can be divided into two types, the depth media and the full flow media.

Depth Media

Pros:

• Hydraulics

• Gear oils

• Lube Oils

• Turbine Oils

• Diesel Fuel / Fuel Oils

Cons:

• When large volumes of water are present that will overwhelm the elements

• Oils with Special Additive Packages

• When High Flow rates are needed(above 3 - 5 gpm per element)

• High Viscosity (ISO 680)

• Oil Temperatures above 250F

Full Flow Media

Pros:

• Hydraulics

• Gear oils

• Lube Oils

• High Viscosity Oils

• Diesel Fuel / Fuel Oils

• Oils with Special Additive Packages

• Water based fluids

Cons:

• Will not remove water

• Will not clean at as low of ISO Cleanliness codes as Depth Media

• Will not hold as much solid contamination so filters will need replaced more often than Depth Media

Centrifugal Systems - Can be complicated to operate and are difficult to maintain. Usually require special training.

Pros:

• Hydraulics

• Gear oils

• Lube Oils

• Turbine Oils

• Diesel Fuel / Fuel Oils

Cons:

• Does not Work well with High Viscosity Oils

• These systems tend not to remove solid contamination well.

• These systems tend to be very large and difficult to operate. They are usually operated by contract firms that come on-site to spot clean the oil.