There are lots of contaminants that threaten your compressed air system – and therefore also your equipment and end products. From wet and dry dust to particulates, water drops and oil aerosols, each of them reduces your air quality and puts your operation at risk.
Silicone-free filtration for air compressors
An air filter protects your compressed air system and your investment. And there is none better than Atlas Copco’s SFA filters.
These silicone-free air filters efficiently prevent dry and wet dust, particulates, oil aerosol and water droplets from entering your compressed air system. In the process, they ensure that you have access to a compressed air stream with a superb air purity.
Know your air quality requirements
If you know that a filter from the SFA series is right for you, then you can check out the below table for some useful information.
If you are unsure, and only know that you have to protect your system, then you need to find out your air quality requirements. Knowing your air quality requirements and which standards to comply with will help you select the right air filter, which could lower your investment costs and ensure that you get the most out of your compressed air system. If you are not sure which ISO standard applies to your operation, you can contact Atlas Copco or consult this table below.
SFA series
The silicone-free air filters of the SFA series prevent a wide range of contaminants from entering your compressed air system. They not only protect your equipment but also your end products and your entire operation.
Thanks to their glass fiber and fleece filtration media, SFA filters are highly efficient in removing dry and wet dust, particulates, oil aerosol and water droplets. Their low pressure drops ensure that you enjoy significant energy savings while lowering operating costs.
The filters of the SFA series, which are certified by the Fraunhofer Institute as guaranteed silicone-free, stand out with their outstanding reliability. It is the result of high-performance stainless-steel cores, double O-rings, epoxy-sealed caps and an anti-corrosive coated filter housing.
In addition, external ribs on the threaded housing and push-on elements make the filters of the SFA series easy to maintain.
Certification
Paint compatibility certificate (Fraunhofer Institute)
Technical specifications
Filter size |
Nominal capacity* |
Maximal capacity* |
Connections G or NPT |
||
DD+, DDp+, PD+, PDp+, QD+ |
l/s |
Cfm |
l/s |
cfm |
in |
9 |
9 |
19 |
11 |
23 |
3/8 |
17 |
17 |
36 |
21 |
45 |
1/2 |
32 |
32 |
68 |
40 |
85 |
1/2 |
44 |
44 |
93 |
55 |
117 |
3/4 & 1 |
60 |
60 |
127 |
75 |
159 |
1 |
120 |
120 |
254 |
150 |
318 |
1-1/2 |
150 |
150 |
318 |
188 |
399 |
1-1/2 |
175 |
175 |
371 |
219 |
464 |
1-1/2 |
280 |
280 |
594 |
350 |
742 |
2 & 2-1/2 |
390 |
390 |
827 |
488 |
1035 |
3 |
520 |
520 |
1102 |
650 |
1378 |
3 |
The table below shows the various ISO 8573-1:2010 air purity classes and the Atlas Copco filters and dryer-combinations that meet these classes.
If you are unsure which ISO class you need but you do know what contaminant you have to protect your system from, then check out the general and special applications tables below. It will provide you with an overview of which Atlas Copco filters are the ideal solution for which contaminant.
Filter applications
ISO 8573-1:2010 class |
Solid particles |
Water |
Oil (aerosol, liquid, vapor) |
||
Wet conditions |
Dry conditions |
||||
|
As specified by the customer* |
Oil-free compressor |
|||
1 |
DD+ & PD+ |
DDp+ & PDp+ |
Desiccant dryer |
DD+ & PD+ |
& QD+/QDT |
UD+ |
UD+ |
& QD+/QDT |
|||
2 |
DD+ |
DDp+ |
Desiccant dryer, rotary drum dryer |
DD+ & PD+ |
|
UD+ |
|||||
3 |
DD+ |
DDp+ |
Desiccant dryer, membrane dryer, rotary drum dryer |
DD+ |
|
4 |
DD+ |
DDp+ |
Membrane dryer, refrigerant dryer |
DD+ |
|
5 |
DD+ |
DDp+ |
Membrane dryer, refrigerant dryer |
- |
|
6 |
- |
- |
Membrane dryer, refrigerant dryer |
- |
|
Dirt, water and oil are no match for Atlas Copco’s filters. They are designed to remove one or more of the following contaminants:
- DIRT: dust, solid particles, rust particles, micro-organisms.
- WATER: condensed liquid water, water aerosols, acidic condensates.
- OIL: liquid oil, oil aerosol, hydrocarbon vapor.
Dry dust
Micro organism
Oil aerosol
Wet dust
Oil vapor
Water drops
