Rotary feedthrough for a device for inflating or deflating a tyre of a tractor wheel

摘要

The rotary tubular valve for inflating tractor tires has pairs of sealing rings (35, 41) fitted at either end of the chamber (K) between the outer casing (13) and the rotating inner section (28). The outer ring (35) of the pair can slide axially, while the inner ring (41) is fixed.