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Atlas Copco Compressors has introduced an oil-water separator that uses a filtration method to treat stable emulsion and prevent bacterial growth in the compressor condensate.

The new OSCi separator can also be integrated into the canopy of most of the Atlas Copco GA-range of oil-injected screw compressors, conveniently allowing it to be monitored via the compressor’s electronic controller.

Additionally, the unit has been inspected and certified to international standards by the Deutsche Institut fur Bautechnik (DIBt), enabling operators to ensure they meet the appropriate standards relating to the disposal of oil-injected air compressor condensate.

Legislation worldwide has become more stringent with regards to the disposal of oil-injected air compressor condensate.

To protect the environment, the general limit of oil contamination in disposed water is 20 parts per million.

This requirement creates the need to separate oil and water from each other within the compressor condensate and therefore it is recommended that an oil-injected compressor is combined with an oil-water separator.

The Atlas Copco OSCi oil-water separator has successfully achieved certification from DIBt, an independent agency that specialises in technical approvals for civil engineering.

The certificate guarantees that the OSCi unit meets the standards demanded by international regulations for oil-water separators, therefore enabling operators to ensure they meet the ISO standards for oil contamination in disposed water.

For oil-water separation, most separators can cope with unstable emulsion but stable emulsion is more difficult to separate.

Atlas Copco engineers have developed a method to deal with this problem.

The OSCi provides filtration in three stages, each located in a different tower.

In the first tower, there is a separation, based on gravity, of oil and water.

A special new filter, combined with aeration in the second tower, is designed for removing stable emulsion while preventing anaerobic bacteria growth and odour.

Finally, an activated carbon filter in the last tower addresses the remaining oil.

This combination of different filtration methods makes it possible to separate oil and water in compressor condensate while preventing bacterial growth, even when a stable emulsion is present.

Integrating the OSCi unit within the compressor makes it possible to use the compressor’s electronic controller to monitor the oil-water separator.

While the display informs on the filter status, the overflow risk and service requirements are announced by an alarm.

Combining all of these features makes it possible to obtain the most efficient use of the compressor configuration; preventing unnecessary servicing saves time and money.

While other external oil-water separators can occupy up to 2M squared of the production area, the floor space requirements for the integrated OSCi are reduced to zero.

This improves the efficiency of the production site while minimising the risk of leakages and reducing installation time and expense.

All that needs to be done is to add clear water, connected to the sewage system and the OSCi will efficiently separate the compressor’s condensate.

An inspection drain allows condensate samples to be obtained even without having to open the compressor, making turbidity comparisons a quick and easy control method.

This provides an extra tool for checking the accuracy of the oil-water separator to keep within standard limits.

Following the continuous improvements on the GA range, the OSCi contributes to the total compressor solution provided by Atlas Copco.

Atlas Copco Compressors

Atlas Copco Compressors is a leading manufacturer of energy efficient compressed air systems and vacuum pumps. In the UK the company offers a nationwide sales, service and distribution network and specialist compressed air advice and service to UK compressed air and vacuum users. Our product portfolio covers oil-free air compressors, oil-lubricated air compressors, centrifugal compressors, high-pressure compressors, vacuum pumps, blowers, engineered air and gas compressors, nitrogen generators; air treatment equipment such as dryers, receivers, and air line filters, as well as aluminium pipework for compressed air, nitrogen, oxygen and other gases.

Atlas Copco Compressors is a leading manufacturer of energy efficient compressed air systems and vacuum pumps. In the UK the company offers a nationwide sales, service and distribution network and specialist compressed air advice and service to UK compressed air and vacuum users. Our product portfolio covers oil-free air compressors, oil-lubricated air compressors, centrifugal compressors, high-pressure compressors, vacuum pumps, blowers, engineered air and gas compressors, nitrogen generators; air treatment equipment such as dryers, receivers, and air line filters, as well as aluminium pipework for compressed air, nitrogen, oxygen and other gases.

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