AOS FOR COMPRESSORS

 


 
Working Principle
Air/oil separators work according to the „principle of coalescence“. Micro-glassfibre layers separate drops of oil from the compressed air and return them in large drops to the oil circuit of the compressor. 
The separation process is effective right down to the submicron range.
This ensures that oil consumption in the compressors and oil entrainment into the compressed air networks are kept to a minimum. Oilvapour is not separated.
Air/oil separators can be used with all types of standard compressor lubricating oils, irrespective of whether they are mineral-based, synthetic or partially synthetic products.
Separation of oil drops
Depending on the size of the drops, various physical separation effects result in the fine drops being adsorbed by the micro-glass fibres.

The number of fibres, fibre diameter and flow velocity have a major impact on separation efficiency. If the design is modified, interaction between inertia, capillaries and diffusion effects is optimised. 
The fine oil droplets are pressed through the separation medium and as they pass through they come together to form larger drops. Under the effect of gravity these droplets sink down through the secondary eparation medium on the clean side. 
The correct choice of material in combination with low flow resistance enables an almost complete separation and redirection of the oil droplets remaining in the air flow. 
This also applies to load fluctuations around the nominal utilisation point.
Return of separated oil
Depending on the design of com-pressor, oil is returned in a number of different ways.
In the standard design of air/oil separators, oil flows from the outside to the inside and the drainage oil is drawn off on the dry side through a centrally positioned pipe running from the base cup of the separator.
 
Standard Wrap  Elements  
Design and function
This product family is suitable for flow from the outside to the inside. It can be used for the entire range of current versions of screw-type and sliding vane compressors.
The standard wrap elements are particularly insensitive to design variations and achieve optimal results with regard to separation efficiency and service life.

Pressure resistance
The standard wrap elements designed for pressure differences of at least 5 bar (0.5 MPa).

Separation  efficiency
The residual oil content at nominal flow rate and at 7 bar (0.7 MPa) operating pressure is approxi-mately 1 to 3 mg/m3.
 

Service life
The rise in flow resistance and thus service life primarily depend on the cleanness of the oil and the quality of the air filter. A service life of several thousand hours can be achieved with a well functioning system.
 
Deph Separator Elements  
Design and function
This product takes up very little space and is suitable for the entire range of current versions of screw-type and sliding vane compres-sors. In the depth separator ele-ment, oil flows from the outside to the inside.

Pressure drop
The pressure drop at nominal flow rate and at 7 bar (0.7 MPa) operating pressure with a new element is approx. 0.2 bar (20 KPa). If a higher resistance is permitted, the volumetric flow rate can be increased to 1.5 times the nominal flow rate without downgrading performance.

Pressure resistance
Depth separator elements are designed for pressure differences of at least 5 bar (0.5 MPa).

Separation  efficiency
The residual oil content at nominal flow rate and at 7 bar (0.7 MPa) operating pressure is approx. 1 to 3 mg/m3.

Service life
The rise in flow resistance and thus service life primarily depend on the cleanness of the oil and the quality of the air filter. A service life of several thousand hours can be achieved with a well-functioning system.
 
Air-Oil Separator Boxes  
Design and function
This product, using the same concept of the depht separator element take very little space with an additional advantage of as easy servicing.
Has become very common in compressors up to 5.5 m3/min howevere there are several application where this Separators combined in double or triple are used in bigger compressors.
The pressure drop at nominal flow rate and at 7 bar (0.7 MPa) operating pressure with a new element is approx. 0.2 bar (20 KPa).

Pressure resistance
Depth separator elements are designed for pressure differences of at least 5 bar (0.5 MPa).
Separation  efficiency
The residual oil content at nominal flow rate and at 7 bar (0.7 MPa) operating pressure is approx. 1 to 3 mg/m3.

Service life
The rise in flow resistance and thus service life primarily depend on the cleanness of the oil and the quality of the air filter. A service life of usually up to 4000 hours can be achieved with a well-functioning system.
 
MARKETING  
For our OEM customer we can propose the best solution using the the whole program of MANN+HUMMEL, the biggest WW AOS Producer together with some special solution of other major Supplier.  For our OES and IAM customers we can propose a complete range using the best solution available from the market using our 2 decades experience in the field.
   

 

BROCHURES  
 Air Oil Separator Filters  AOS Accessories and Gaskets
 AOS Elements  
 AOS Spin On  

 

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