The HST Turbocompressor Type ABS from Sulzer Pump Solutions has no mechanical wearing parts or lubricants, and therefore requires minimal maintenance. This is made possible by electronically controlled magnetic bearing technology, which levitates the integrated rotor/shaft/impeller single-piece assembly. The result is a compressor with no performance deterioration over time. The optimized drive technology controls the machine’s rotational speed, achieving optimal operating efficiency and minimizing energy consumption. It can operate either as a single compressor or as a group of compressors via a number of interface choices, enabling remote or local control of both flow and pressure over the full operating range. 203/238-2700; www.sulzer.com.