Description
Rotary couplings are generally made to transfer liquid or gaseous media from a stationary to a rotating component. Due to its design the rotary valve coupling permits additional control functions, so that valves and electrical control can be reduced to a minimum. These control functions are used in case of clock-pulse controlled rotary indexing tables. Station 1 of these elements is used as load and unload station (clamping and unclamping) and all additional stations are continously pressurised or discharged to the pressure of the atmosphere. The transfer of the pressure medium in the control stations is made leakage-free.