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Sullair has redesigned its 100 to 600HP two-stage tandem rotary screw compressors.

The TS Series tandem compressors are said to offer unmatched full-load efficiency; often providing a two-year payback in energy savings when compared to single-stage compressors.

With the tandem’s variable capacity control, featuring spiral-valve technology, further operating efficiencies can be achieved during part-load operation.

Redesigned to provide increased levels of energy efficiency and operating performance, the compressors offer a choice of constant-speed drive models – TS-20, TS-32 and TS-32S, with capacities of 500 to 3000 acfm – or variable-speed drive (VSD) models – V-200TS and V-320TS, which have a capacity range of 495 to 2310 acfm.

Pressures for all Sullair Two-Stage Tandem models range from 100 to 175psig.

Variable Capacity Control, achieved with Sullair’s spiral-valve technology, allows the compressor to match pressure and capacity with system demand.

At full load, the tandem compressor and spiral valve are 13 per cent more energy efficient.

At 60 per cent load, the Sullair two-stage tandem compressors provide up to 30 per cent savings over single-stage compressors.

Further part- and full-load energy savings are achieved with optional Variable Speed Drive (VSD), which provides the highest power factor over the entire frequency range.

The Sullair tandem compressor with an optional heat-recovery enclosure saves more energy by recovering expended heat compressors.

All models feature Sullair’s Multi-Stage Air Fluid Separation with a dual-nested Optimizer separator element to minimise fluid carryover.

The Optimalair heavy-duty air intake filter reduces pressure drop for additional energy savings throughout its operating life.

The Sullair two-stage compressors also feature an upgrade of Sullair’s Supervisor Controller, a computer-compatible microprocessor control unit, which provides critical operating information using simple graphics of monitored functions and stop/start, sequencing and activation controls.

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