An air pressure circuit for a tire testing device is provided with: piping for conducting air, which is supplied from an air pressure supply source, to a tire; a controller for outputting a target command pressure; a proportional pressure control valve sec...

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 i...