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Atlas Copco Compressors has launched a range of oil-free scroll compressors, which offers flexibility and 100 per cent oil-free air.

The SF 17-22 kW range has been designed specifically for sensitive, point-of-use, oil-free air applications in locations such as hospitals, laboratories, breweries, university departments or within the pharmaceuticals production environment.

The SF 17 and 22 oil-free multi-scroll compressors consist of up to four 5.5kW compressor element modules, making it possible to adapt the compressor to the required application air demand with increased flexibility in comparison to the previous 3.7kW element and the SF 11 to 15 kW models.

These element modules can be combined in two different ways: the SF multi-core and the SF multi-duplex.

The cost-efficient SF multi-core configuration enables economic operation by combining several 5.5kW elements within one canopy.

To save energy, one or more of the modules can be shut down whenever there is a reduction in air demand.

Equally, if there is a future increase in plant air demand, the SF 17 can be upgraded to an SF 22kW with the aid of a simple kit.

This makes the SF 17-22 a cost-efficient source of oil-free air at a low initial investment both for current and foreseeable requirements.

The SF multi-duplex consists of one or two elements, backed up respectively by one or two additional elements, integrated within a sound-insulated enclosure.

This SF multi-duplex design is compliant with all the redundancy standards that apply within the medical sector.

In scroll compressors, air compression is achieved by the interaction of a fixed and an orbiting scroll.

Air at inlet pressure enters the compression chamber at the exterior side of the scroll element and, once the air is drawn in, the orbiting scroll seals off the inlet port.

As the scroll continues to orbit, the air is progressively compressed into an increasingly smaller ‘pocket’.

A continuous flow of compressed air leaves the scroll element through the discharge port in the centre of the fixed scroll.

This process is continuously repeated, resulting in the delivery of pulse-free, 100 per cent oil-free compressed air.

The company’s 100 per cent oil-free scroll compressor technology protects both the application/production process and the end product quality, while fulfilling requirements for pure and clean oil-free air.

By optimising cooling flow design, pressure drop and lower inlet air temperature, Atlas Copco claims that it has increased the compressors’ reliability and performance levels.

This results in a free air delivery up to 51 per cent higher and specific energy requirements down six per cent for the new SF 17-22 range in comparison to the previous multi-scroll models.

The compressors’ integrated Energy Saver System (ESi) monitors and controls the running hours of each element module and equalises wear so that service visits can be combined to assist in optimising application processes and minimising plant downtime.

To the same end, the compressor design provides access to each of the element modules to expedite servicing operations.

The silenced enclosure (down to 65dB[A]) of the SF 17-22 means that the unit can be placed at the point of use.

The integrated-dryer, full-feature concept reduces installation costs and minimises pressure drops, thereby saving energy.

There is no increase in the compressor footprint requirement.

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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