Compressed Air Filters
Natural Gas Filters
Air Oil Separation
We offer coalescing filters for many industrial applications.
Our coalescing filters are designed for all compressed air; natural
gas, refrigeration, CNG/NGV (compressed natural gas/natural gas
vehicles) and Air/Oil filter applications. Our coalescing filters
can be designed with oil mist removal efficiencies up to 99.9999%
with working pressures to over 5000 PSI.
Coalescing is the separation of liquid aerosols and droplets
from gas. Using a coalescing filter element installed in
housing with three ports the wet gas sample passes though
element inside to outside. The inner capture layer is a high
efficiency coalescing layer and the outer is a coarser
The fine fibers of the inner layer capture the fine liquid aerosols
and droplets and they run together along the fibers to form large
drops within the depth of the element. These large drops are
then forced to the outside of the filter element and then
drain to the bowl of the housing by gravity. Coalescing
filter elements will also remove particulates at the same
efficiency as particulate type elements of the same grade.
Our capabilities range from filters as small as 0.18” inside
diameter to over 22outside diameter. We have custom designed our
coalescing filters for many applications and have extensive tooling
to satisfy applications that require standard filter sizes.
Our natural gas filters are offered for all car, truck and bus
applications. We design our filters to protect vital components
from oil mist build-up and fouling. We have been supplying
coalescing filters for alternative fuel applications for the last
10 years. Our filters have been tried and true for most any
demanding compressed gas filter application.
Our coalescing filters are manufactured for all compressed air
applications and in-line filter applications, to remove oil mist
from the compressors that introduce oil vapor into the gas stream.
These coalescing filters are constructed of three layers. The inner
and outer layer act as built-in pre-filters, depending on an
outside to inside flow or inside to outside flow. These are also
the drain and support layers. The middle layer - "binder free"
borosilicate micro glass fiber - is the coalescing portion of the
filter. Pre-filtering removes dirt particles prior to coalescing
thereby increasing filter life.
In most applications, our built-in pre-filter will eliminate the
need for a separate pre-filter.
Inner and outer layers are made of rayon fibers, impregnated with
phenolic resin (see Figure 1). Situated between these layers is the
coalescing layer (borosilicate micro glass fiber). Efficiencies
range from 93% to 99.9999% at the 0.1 micron range. The pre-filter
can be constructed with microns from 1 to 75. We will custom design
for new applications or cross reference competitive filters for
existing applications.Coalescing Filters are used in many applications, including, but
not limited to:
Natural Gas Vehicle Filtration (NGV)
Compressed Air Filtration
Compressed Natural Gas Filtration (CNG Filtration)
Air Oil Separation