Filter • Compressed Air Filters
Natural Gas Filters • Air Oil Separation
coalescing filters for any industrial application.
Groups' coalescing filter is designed for all compressed air, natural
gas, refrigeration, CNG/NGV (compressed natural gas/natural gas
vehicles) and Air/Oil filter applications. Our coalescing filter can be designed with oil mist removal efficiencies up to 99.9999%
with working pressures to over 5000 PSI.
is the separation of liquid aerosols and droplets from a gas.
Using a coalescing filter element installed in a 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 drainage layer.
The fine fibres of the inner layer capture the fine liquid aerosols
and droplets and they run together along the fibres 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.
capabilities range from filters as small as 0.18” inside diameter
to over 22” outside diameter. We have custom designed our
coalescing filters for many applications and have extensive tooling
to satisfy applications that require standard filter sizes. We can
cross reference filters made by Parker, Balston, Bendix, Microbon
and many other manufacturers.
natural gas filters are manufactured 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.
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.
Allied Group's 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 microglass - is the
coalescing portion of the filter. Pre-filtering removes dirt particles
prior to coalescing thereby increasing filter life.
most applications, our built-in pre-filter will eliminate the need
for a separate pre-filter.
and outer layers are made of rayon fibers, impregnated with phenolic
resin (see Figure 1). Situated between these layers is the coalescing
layer (borosilicate microglass). Efficiencies range from 93% to
99.9999% at the 0.3 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.
Filters are used in many applications, including, but not limited
Natural Gas Vehicle Filtration (NGV)
Compressed Air Filtration
Compressed Natural Gas Filtration (CNG Filtration)
Air Oil Separation