Sullair Corporation’s V250S Single-Stage Rotary Screw Air Compressors offer a choice of three Variable Speed Drive models ranging from 250 to 350 hp, with capacities of 1,085 to 1,580 cfm and pressures of 100 to 125 psig. All three models are available with Sullair’s WS Microprocessor Control System, which features an easy-to-read graphics display to highlight frequently used compressor information. This controller is also programmed to monitor all necessary functions, including protection from abnormalities.