The invention relates to a regulatory device for a pump (2), whose
delivery volume can be adjusted, said device comprising a control valve
unit (3) for regulating a control pressure that operates in a control
pressure chamber (21) of an actuator (4, 5). The control valve unit (3)
comprises a threshold value control valve (22) and a delivery flow
control valve (23). The threshold value control valve (22) is subjected
to a pressure from a working line (7) on the delivery side and the
delivery flow control valve (23) can be subjected to a consumer input
pressure taken from a consumer supply line (8), at a comparison pressure
connection (29). In addition, the delivery flow control valve (23) is
subjected to a control pressure that counteracts the consumer input
pressure, at a regulatory pressure measurement connection (27). A control
pressure feed connection (38) of the delivery flow control valve (23) can
be connected to the working pressure line (7) on the delivery side in a
variable manner, by means of the threshold value control valve (22).