The VFZ Series are single-stage ring compressors with a maximum pressure of 139 in. H2O, a maximum vacuum of 110 in. H2O and a maximum capacity of 570 SCFM. Motors are direct drive from 1 HP to 15 HP. Voltages are available in 115 single phase, 230 single phase, 230/460 3-phase dependent upon motor size. All units are provided with threaded flanges.