High-efficiency filter media technology captures harmful particles that can damage your engine
The use of compressed air is now an integral feature of every industrial firm. Compressors and vacuum pumps are used in the construction industry, mechanical engineering and in highly sensitive sectors such as the foodstuffs, pharmaceuticals, and electrical engineering industries. Air/oil separators are important quality components in the com-pressed air processing chain.
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Depending on the size of the drops, various physical separation effects result in the fine drops being adsorbed by the micro-glass fibers. The number of fibers, fiber diameter and flow velocity have a major impact on separation efficiency. If the design is modified, interaction between inertia, capillaries and diffusion effects is optimized. 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 separation 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 utilization point.
⦁ Depending on the design of compressor, oil is returned in several 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.
Due to their design, air/oil separators are constructed with several layers. The fine separation layer made of borosilicate glass fibers with defined layer thicknesses is responsible for the coalescence effect.
These microfiber papers are almost free of binding agents and ensure stability with different lubricant types even at relatively high operating temperatures. The redirection of the oil droplets is realized with a polyester fabric. Under unfavorable preparation conditions in the pressure vessel a preparator integrated in the element can protect the other two from overload. This can also lead to a longer service life of the air/oil separator. Elements with preparation are available on request.
In accordance with the requirements of the trade association of the chemical industry, the metal parts of air/oil separators for com-pressors have an electrically conductive interconnection to transfer any static charges reliably. Suitably prepared mounting seals produce conductive connections to the compressor housing.
Depending on their type, air/oil separators have flow resistances of between 0.17 bar (17 KPa) and 0.22 bar (22 KPa), referred to the oil-moistened opera-ting state at nominal volume-trick flow and at operating temperature.
High-efficiency filter media technology captures harmful particles that can damage your engine
High resistance to differential pressure
Operating temperature=>up to 120 °C
Residual oil content=>
1 to 3 mg/m3 or ppm
(at nominal load)
Standard wrap elements=>1 to 42 m"/min
Depth separator elements=>1 to 46 m"/min
Air/oil separator boxes=>1 to 6 m3/min
Air/oil separator filters=>1 to 16.5 m3/min
Air/oil separators for vacuum pumps=>0.1 to 3.6 m"/min
Depth Separator Elements are available in a variety of sizes. They will only function properly when there is no leakage between the wet and the dry sides. Air should be guided in such a way as to prevent the air oil stream impacting directly on the sur-face of the filter element.
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 compressors. In the depth separator element, 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 per-mitted, 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/m'.
Service life
The rise in flow resistance and thus service life primarily depends 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.