Depth Filters.pdf

About Depth Filters
FILTERS that use a porous medium and catch particles using throughout the medium and not just the surface or layer. Medium can be fibrous cellulose, poly proplylene along with base paper or flat filter cloth .It normally will have an inner core an outer core ,in some case a shoot to encase the media.There is normally a base paper or filter cloth to act as a bed to flow of liquid through the media. Filter extraction hooks /ribbon/or eyelet help removal of filter after it has choked or used.Types of Depth Filters
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A) CELLULOSE PAPER DEPTH FILTERS B) POLYPROPYLENE DEPTH FILTERS

A) CELLULOSE PAPER DEPTH FILTERS
Developed to increase oil change intervals half a decade back-the method is used worldwide for ultrafine cleaning of machine oils.
Hydraulic oil cleaning is blessed with usage of depth filtration keeping machines well oiled and never prone to failures.
Long slender fiber pulp are used for making filter paper used for depth filters .Long fibres help absorb moisture and the capillary action of the fibres help retain moisture in media. The round coil similar to a paper roll form a depth and various level of compression on outer core enable multi layer filtration assisted by base paper ,skirting or other arrangement as per manufacturer designs.Some brands manufacturing cellulose depth filters :
Triple -RRR (Japan) , M-Series, E- Series, E-Series and more…
CJC – Denmark , A-Filters Inserts, B- Filters Inserts and more…
Kleenoil – Uk , Kleenoil SDC1888 , Kleenoil SDFC1888KF85 , Water glycol filter SDPC 2088, Kleenoil depth filters and more..
Destiny International – India , 200HE , 100 Series , 50 Series , 30 Series and equivalents .FACTORS TO DETERMINE PERFORMANCE OF DEPTH FILTERS
Beta ratio Yes
Efficiency

Yes
Dirt holding capacity

Yes
Moisture absorbing capacity

Yes
Micron rating

Yes
Dimensions Yes

1. Hydraulic Depth Filters
About Depth Filters
FILTERS that use a porous medium and catch particles using throughout the medium and not just the
surface or layer. Medium can be fibrous cellulose, poly proplylene along with base paper or flat filter
cloth .It normally will have an inner core an outer core ,in some case a shoot to encase the
media.There is normally a base paper or filter cloth to act as a bed to flow of liquid through the
media. Filter extraction hooks /ribbon/or eyelet help removal of filter after it has choked or used.
"Ask Me Anything"About Filtration & Oil Reclamation
Types of Depth Filters
A) CELLULOSE PAPER DEPTH FILTERS B) POLYPROPYLENE
DEPTH FILTERS
A) CELLULOSE PAPER DEPTH FILTERS
Developed to increase oil change intervals half a decade back-the method is used worldwide for
ultrafine cleaning of machine oils.
Hydraulic oil cleaning is blessed with usage of depth filtration keeping machines well oiled and
never prone to failures.
Long slender fiber pulp are used for making filter paper used for depth filters .Long fibres help
absorb moisture and the capillary action of the fibres help retain moisture in media. The round
coil similar to a paper roll form a depth and various level of compression on outer core enable
multi layer filtration assisted by base paper ,skirting or other arrangement as per manufacturer
designs.
Table for clearance Between Filter Condition & Preventives Indications​
FILTER CONDITION PREVENTIVES/INDICATIONS
DUST DEBRIS AND VISIBLE CONTAMINATSNORMAL OPERATING AND OIL CONDITION.
CHECK TAN <1

2. LARGE QUANTITY OF CONTAMINANTS ON
FILTER SURFACE.
INSPECT MACHINE AT THE EARLIEST,WEARING /ERODING
OF MACHINE INTERNAL EXPECTED.
CRACKS ON FILTER LAYERS AND SPONGY
AND SOFT
INDICATION OF MOISTURE OR HEAT EXCHANGER OR
ACCIDENTAL INGRESS OF WATER.HIGH ALERT REQUIRE
IMMEDIATE ATTENTION AND SOLUTION.
FILETR IS HARD WITH VSISBLE DIRT AND
CRACKS.
FILTER REPLACEMENT REQUIRED,REACHED SATURATION.
SHRINKAGE OF FILTER CHECK FOR HIGH PRESSURE EXPOSURE TO FILTER
VISIBLE PRESENCE OF METAL GO FOR OIL ANALYSIS INTERNAL COMPONENT WEAR
EXPECTED
FILTER APPEARS CLEAN CHECK IF CHECKVALVE IS MALFUNCTIONING
PREVENTING OIL INLET TO FILTER.
DESIGNS PHOTOS OF DEPTH FILTERS USED IN INDUSTRIES
HOUSING WITH REPALCEMENT FILTERS
DEPTH FILTER
DEPTH FILTER MANUFACTURING
DEPTH FILTER
FRESH DEPTH FILTER
DEPTH FILTER
EXPERTS INSERTING DEPTH FILTER
DEPTH FILTER
DEPTH FILTER ON MACHINE
DEPTH FILTER
DEPTH FILTER INSTERTED
DEPTH FILTERS TYPE 2 (FILTER CARTRIDGE)​
SURAFACE FILTER VS DEPTH FILTER

3. The amount of surface area directly correlates to the solids loading capability and
related pressure drop.Depth Filtration refers toa thicker media or multiple layers
of media, forming a torturous path to retain particles.
FLOW DIAGRAM OF SURAFACE FILTER VS DEPTH FILTER
FILTER CARTRIDGE
Fresh FilterCartridge
EXPERTS INSTERSTING FILTER CARTRIDGE (PIC3)
USED FILTER CARTRIDGE (PIC 4)
SUPER DUTY FILTER CARTRIDGE
DEPTH FILTER ELEMENT TYPE -3
FILTER ELEMENT
EVIDNECE OF DELAYED FILTER CHANGES (1)
EVIDNECE OF DELAYED FILTER CHANGES (2)

4. EVIDNECE OF DELAYED FILTER CHANGES (3)
EVIDENCE OF METAL WEAR IN MACHINE
NOTE : CHANGE YOUR FILTER ATLEAST WHEN 80%
SATURATED OR QUATERLY OR EARLIER AS PER APPLICATION
B) FILTER TYPE -2 POLYPROPYLENE DEPTH FIL TERS
FACTORS TO DETERMINE PERFORMANCE OF DEPTH FILTERS
Beta ratio Yes

5. Efficiency Yes
Dirt holding capacity Yes
Moisture absorbing capacityYes
Micron rating Yes
Dimensions Yes
Some brands manufacturing cellulose depth filters :
●Triple -RRR (Japan) , M-Series, E- Series, E-Series and more…
●CJC – Denmark , A-Filters Inserts, B- Filters Inserts and more…
●Kleenoil – Uk , Kleenoil SDC1888 , Kleenoil SDFC1888KF85 , Water
glycol filter SDPC 2088, Kleenoil depth filters and more..
●Destiny International – India , 200HE , 100 Series , 50 Series , 30 Series
and equivalents
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