Coalescing Filters

Coalescing Filters are probably the most important items of purification requirements in a compressed air system, which are designed not only to filter oil vapor and water, but also to filter solid particulates to an acceptable level as small as 0.01 micron in size. Usually, in the installation system, the fist filter's purpose is to pre-filter, protect the high efficiency filters from bulk contamination so as to provide high quality compressed air. If the air filters worked under damp or full of water adsorption condition, it would prevent the compressed air from getting through the filter element, and the air flow would force the liquid to get through from the pores of the element media, thus increase working pressure drop and reduce filtration performance.

Activated Carbon Filters

Oil vapor can easily get through the coalescing filters in a state of gaseous, so the adsorptive filter must provide large activated carbon adsorption bed. Because the damp air will reduce the adsorptive ability of the activated carbon, the adsorptive filter usually installed after the adsorptive dryer, in order to guarantee effective removal of oil vapor and peculiar odor. It's not used to remove the liquid oil or aerosols, thus poor maintenance and lack of pre-filter will accelerate its invalidation.

  • The filter housing is aluminum alloy die-casting, with tight and strong structure, has long life span. All the housing painted before cleaning, degreasing and special anti-corrosion treatment, which enhanced its durability.
  • Smaller and compact filter due to the advance filter element designing idea.
  • The filter housing's service life is 15 years, and the filter element can be used for 6000~8000 hours under working environment from temperature 1.5~80℃, pressure is under 1.6 Mpa, also applicable to ocean platform operation.
  • The housing can bear pressure 32 kg.f for 96 hours, and the maximum burst pressure is 90 kg.f.
  • Precise screw thread makes installation easier, and parallel connection of the housing can save installation and maintenance space.

Products selection:

 The flow rate below is the treatment capacity of compressed air under nominal working pressure 7bar g(100psi g). Under normal working condition, its separation effect is as high as 99%.

Length unit conversion table     

1km=1*10³m   1dm=1×10^(-1)m   1cm=1*^(-2)m  1mm=1×10^(-3)m 1dmm=1×10^(-4)m 

1μm=1×10^(-6)m   1nm=1×10^(-9)m              

Volume concentration unit conversion table      

1ppm=1mg/L  1ppm=10³mg/m³   1ppm=10³ppb    1g=10³mg  1L=10m³ml  10³L=1m³


Element Structure

There's flow distributor on the upper side of the filter element, which can reduce turbulence and pressure drop, improve filtering performance

FPM seal ring blocks the air before and after filtering to achieve a better filtering effect.

The supporting layer adopts stainless steel to ensure the filter element strength and the layered filtration design guarantees the element filtering accuracy.


96% porosity have strong capacity of holding dust, life span is up to 6000~8000 hours, general pressure difference is 0.17 to 0.25kg/cm, no exceeding of 0.65kg/cm.

 The element cover is made of PA+GF material, free from deformation from -20℃ to 240℃ under 1.8Mpa pressure. Can also resist general acid and alkali chemical corrosion, with stand terrible compressed air environment, have extreme oleo phobic and hydrophobic ability.

The inside and outside supporting layers are made of stainless steel to ensure the filter element strength, and protect the glass fiber during production process, at the same time avoid damage to filter element due to the rusty material, and secondary contamination of the compressed air.

The high quality special out material of the element can condense the water and oil, avoid them to be blown away, further to achieve a better drying and filtering effect.


Guarantee Air Quality

Please replace the filter elements with YUKA original products to ensure purified, dry and stable air.The element is constantly impacted by oil, acidic condensate and hi velocity dust particulates during the whole operation process, it also has to filter and keep protecting your compressed air system. It will weaken the filter media and reduce the filtering performance if it passed the replacement period. Technically, these hidden and serious reduction can not easily be detected by the differential pressure indication instruments. To replace the filter element every year is very essential. Failed to replace the m in time will lead to low product performance and air quality, as well as high production cost.

Visitors: 79,419