Valve fitting for a tyre assembly of a work vehicle with a tyre pressure control system (RDRA)

摘要

A valve valve comprises a valve body defining a valve passage, supply and work connections in fluid connection with the valve passage, a supply connection coupler operable to connect the supply connection with an associated supply connection coupler, providing a pressurised fluid, a work connection coupler operable to connect the work connection to an associated tyre of a tyre assembly of an associated work vehicle, a supply valve which is located in the valve passage between a first position, which closes the valve passage from the supply connection,and a second position opening the valve passage to the supply connection is movable, a preload assembly which preloads the supply valve to the first position, and an actuator assembly comprising an actuator element which is operable, to push the supply valve into the second position against the preload of the preload assembly in response to the associated supply connection coupler being connected to the supply connection coupler.