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VST Series 25-250HP

Oil lubricated two stage rotary screw technology 55-260kW (75-350HP)

The VST Series™ two-stage variable speed compressors from Gardner Denver not only deliver the standard 8-12% energy savings over a single stage compressor, but will be the most efficient compressor you will ever purchase.

Designed to provide tremendous energy savings at part load points, the compressor matches the supply of compressed air at the specified target pressure to your system’s specific demand while minimizing the power required to compress the air.

Product Features

Savings at Part Load

The VST Series provides tremendous power savings at part load points, which save you thousands of dollars in energy costs each year. The compressor matches the supply of compressed air, at the specified target pressure, to your system’s specific demand while minimizing the power required to compress the air. Typical compressors either modulate the inlet valve and/or vary the displacement of the first stage to control the capacity of the package. These methods do not offer the power savings of a variable speed control matched to the most efficient compressors nor are they able to achieve the wide operating range of the VST Series products.

Simplicity

The AirSmart™ controller was designed to make the operator’s interface with the variable speed drive transparent. You don’t need to be an expert on variable speed drives to operate our compressor. The controller takes care of the details. The controller automatically adjusts the compressor’s performance to meet your changing air system demands—saving you energy dollars.

Smarter Design

The two-stage VST Series design incorporates stepped-injection technology. This allows the AirSmart™ controller to maintain the discharge temperature of the compressor above the dew point to prevent condensate from forming in the lubricant. Gardner Denver designed the first and second stage compressors as independent compressors and drives. This choice allows the AirSmart™ controller to synchronize the second stage compressor speed to the exact needs of the first stage optimizing the input power of the package. The result is the most efficient supply of compressed air to your system demand at the lowest possible energy cost. Reliability and efficiency have been designed into each component in this system to ensure you maximum performance and dependability.

Available Models:

VST Series 55-180 HP

The VST Series™ is comprised of two independent compressors and drive systems. The first stage is designed for greater volume at lower pressure while the second stage is designed for the most efficient compression ratio. Utilizing an independent compressor design allows our intelligent AirSmart™ controller to synchronize the second stage compressor speed to the exact needs of the first stage-optimizing the input power of the package.

When air is not needed, the VST Series™ compressors stop running and do not vent to atmosphere, thus eliminating any waste compressed air. The “soft” starting capability of the AirSmart™ controller allows the motor to start against a pressurized system at any time and will do so as often as required by the system. Focusing on the details has allowed us to deliver the most efficient compressor in the world.

VST Series 225-260 HP

The VST Series™ is comprised of two independent compressors and drive systems. The first stage is designed for greater volume at lower pressure while the second stage is designed for the most efficient compression ratio. Utilizing an independent compressor design allows our intelligent AirSmart™ controller to synchronize the second stage compressor speed to the exact needs of the first stage-optimizing the input power of the package.

When air is not needed, the VST Series™ compressors stop running and do not vent to atmosphere, thus eliminating any waste compressed air. The “soft” starting capability of the AirSmart™ controller allows the motor to start against a pressurized system at any time and will do so as often as required by the system. Focusing on the details has allowed us to deliver the most efficient compressor in the world.

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