The Hydrovane HV (ACE) RS series of enclosed regulated speed rotary vane compressors provide a variable speed offering for the enclosed Hydrovane product selection. While fixed speed rotary compressors are most efficient in continuous duty applications, regulated speed machines optimize energy efficiency when operated below full load capacity. The HV (ACE) RS series offers all of the same features and benefits of the enclosed fixed speed range, with the added benefit of up to 50% energy savings due to decreased electricity consumption. These units produce only the amount of air required to meet application demand.