EP3812870

[0001] Pressure independent flow control system for use in a piping circuit of a central heating/cooling system and/or sanitary system. The flow control system comprises: a flow sensor for sensing an actual medium flow through a pipe part and outputting an electrical signal indicative of the sensed actual medium flow; a controller having an input for receiving a value representing a set medium flow and being provided for evaluating the electrical signal indicative of the sensed actual medium flow with the value representing the set medium flow and producing a control signal based on said evaluation for controlling the medium flow through the pipe part towards the set medium flow, and an orifice adjusting system comprising a flow chamber with an adjustable orifice in the pipe part, the orifice adjusting system being provided for adjusting the adjustable orifice in response to the control signal of the controller.