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Filtration

Filtration

Direct Air are able to advise, supply and install the correct filter configuration for your compressed air system to ensure you get the correct quality of air required.

Compressed air FiltrationCompressed air filters are used to remove contaminates from compressed air after compression has taken place. Air leaving a compressor will normally have high water content as well as some oil carry over along with other contaminates. Depending on the application for the compressed air, different filtration levels are required.

Direct Air are experienced in supplying and maintaining compressed air filters for the food, medical and pharmaceutical industries where air quality is paramount.

Types Of Compressed Air Filters
Compressed Intake filters

The first line of defence is the intake air contaminant load protecting the solids. Generally, these are efficiency filtration removing over 80% of particulate contaminants down to 0.3 micron.

Particulate filters

Particulate compressed air filters are used to remove dust and particles from the air.

Coalescing filter

Coalescing filters remove both water and oil aerosols from the air stream. These filters reduce levels of oil, water aerosols, dust and dirt particles to 0.01 micron the best achievable in industry.

Activated carbon filters

Activated carbon filters will remove odours and vapours. They are typically used in factories where food is produced or for breathing air.

Bacteria Filter

Bacteria filters remove bacteria from compressed air which can be required for certain applications in the food, pharmaceutical and healthcare industries.

ISO 8573 Table 

 

 

CLASS


Solid Particles, Particle Size, d (mm)


Humidity & Liquid Water


Oil

 

0.10<d≤0.5

 

0.5<d≤1.0

 

1.0<d≤5.0

 

Pressure Dew Point

 

Total Concentration: Aerosol, Liquid, Vapour

 

Maximum number of particles per m³

°C

°F

mg/m³

ppm/w/w

0

As specified

As specified

As specified

1

100

1

0

≤ -70

-94

≤0.01

≤0.008

2

100,000

1,000

10

≤ -40

-40

≤0.1

≤0.08

3

 

10,000

500

≤ -20

-4

≤1

≤0.8

4

-

-

1,000

≤ +3

38

≤5

≤4

5

-

-

20,000

≤ +7

45

   

6

     

≤ +10

50

   

 

Liquid water content

Cw g/m³

 

7

     

Cw ≤ 0.5

   

8

     

0.5 > Cw ≤ 5

   

9

     

5 < Cw ≤ 10

   

Interested in Filtration?

If you're interested in our range of Filtration and looking for further information, contact Direct Air today. Call us on 0845 602 6433, email us at enquiries@directair.co.uk or fill in our online enquiry form.