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Correct selection of filtration media
C
oalescing and dust removal filters use a high
efficiency borosilicate glass nanofibre material
which has a 96% voids volume, providing
media with excellent filtration efficiency and
a high dirt holding capacity.
AIR QUALITY - GUARANTEED
Filtr
ation perf
ormance of OIL
-X EV
OLUTION f
ilter
s ar
e not only tried and tested by domnick hunter, but has also been independently validated by Lloyds Register.
AIR QUALITY
THE DOMNICK HUNTER OIL-X EVOLUTION RANGE OF COMPRESSED AIR FILTERS HAS BEEN DESIGNED FROM THE
OUTSET TO MEET THE REQUIREMENTS OF ISO 8573.1 : 2001, THE INTERNATIONAL STANDARD FOR COMPRESSED
A
IR QUALITY, WHEN VALIDATED IN ACCORDANCE WITH THE REQUIREMENTS OF ISO 12500, THE INTERNATIONAL
STANDARD FOR FILTER TESTING AND THE TEST METHODS OF ISO 8573.2, ISO 8573.4 AND ISO 8573.5.
OIL-X EVOLUTION coalescing filters utilise four drainage methods
to ensure high performance, whilst conventional filters only use one.
Drainage method 1
High efficiency drainage layer provides
increased liquid drainage, improved
chemical compatibility and higher
operational temperatures when compared
to conventional materials.
Dr
ainage method 2
Surface tension breakers are moulded into
the lower filter element endcap to prevent
liquid from sticking, and to ensure fast and
efficient dr
ainage of coalesced liquid.
Drainage method 3
Dr
ainage ribs c
as
t into the filter bowl
compress the lower part of the filter
el
ement, all
o
wing bulk liquid t
o r
apidl
y dr
ain
from the filter element through capillary
action.
Drainage method 4
Traditional elements have a build up of liquid
known as a “wet band” where the drainage
layer is glued into the lower endcap.
The OIL-X EVOLUTION design wraps the
drainage layer under lower endcap removing
coalesced liquid from the air flow path,
increasing liquid removal efficiency, and
providing more usable filtration surface area.
Construction of the filtration media
into a filter element
OIL-X EVOLUTION filter elements use
pleated not wrapped filter media, which
is constructed using a unique deep bed
pleating technique. This provides 450% more
filtration surface area when compared to
a traditional wrapped filter element and
around 200% more surface area compared
to a traditional pleated element.
Deep bed pleating also reduces the air flow
velocity within the media, which further
impr
o
v
es filtr
ation perf
ormanc
e.
Additionally, the high efficiency AA and AAR
gr
ade el
ements hav
e a unique gr
aded
density media construction which provides
e
v
en gr
eat
er filtr
ation perf
ormanc
e without
adding to pressure loss or energy
consumption.
Typical element
OIL-X EVOLUTION
Wet band in air
fl
ow path
No wet band in air
fl
ow path
Independent P
erf
ormanc
e Validation in Accordance with:
ISO 12500.1
OIL AEROSOL
ISO 8573.2
OIL AEROSOL
ISO 8573.4
SOLID PARTICULATE
ISO 8573.5
OIL VAPOUR
Coal
escing filt
ers
✓
✓
✓
X
Dry P
articulat
e filt
er
s
XX
✓ X
Oil V
apour Remo
v
al filt
er
sX X X
✓
3