Flow regulating device in particular for a fuel injection system of an internal combustion engine

The device has a throughput regulating valve (48) and an electromagnetic actuator (46) with a magnetic armature (60) guided in a housing (50) inside a magnetic coil (52) for displacing a valve element (82) in a valve housing to set different flow cross-sections. A sleeve (54) is inserted into the housing inside the magnetic coil that extends at least approximately over the entire length of the armature and is guided within the armature.