Rapid tyre inflation plant

A rapid tyre inflation plant comprising a low pressure high flow inflating gas source (2), an inflation device (DG), a motor (T), a compressor (C) driven by said motor and a control circuit arranged to control feed of low pressure inflating gas from said inflating gas source (2) to said compressor (C) and the feed of inflating gas at a relatively high flow and pressure to said inflation device (DG).