Pressure independent control valve for controlling the flow of a liquid medium, comprising a valve body providing an inlet section in which an inlet pressure of the liquid medium is present, an outlet section in which an outlet pressure of the liquid medium is present, wherein the outlet section is coaxial with the inlet section, a middle section positioned between the inlet section and the outlet section, wherein an upstream chamber and a downstream chamber being in communication with each other through an adjustment orifice are provided within the middle section, a first functional group defined by a control device for controlling a differential pressure within the pressure independent control valve, a second functional group defined by an adjustment device suitable for increasing and/or decreasing the liquid flow through the adjustment orifice, wherein a first insert element providing the adjustment orifice is at least partially positioned within the middle section of the valve body, wherein said first insert element is placed within the middle section of the valve body through a first opening of the valve body provided at a first side of the middle section, wherein the control device providing the first functional group is at least partially accommodated with said first insert element, wherein an outer wall section of the first insert element provides a groove accommodating a sealing element, wherein said groove runs diagonally around said outer wall section so that the sealing element accommodated within said groove seals the upstream chamber against the downstream chamber, a second insert element is at least partially positioned within the middle section of the valve body, wherein said second insert element is placed within the middle section of the valve body through a second opening of the valve body provided at a second, opposite side of the middle section, wherein the adjustment device providing the second functional group is at least partially accommodated with said second insert element. a valve body providing an inlet section in which an inlet pressure of the liquid medium is present, an outlet section in which an outlet pressure of the liquid medium is present, wherein the outlet section is coaxial with the inlet section, a middle section positioned between the inlet section and the outlet section, wherein an upstream chamber and a downstream chamber being in communication with each other through an adjustment orifice are provided within the middle section, an inlet section in which an inlet pressure of the liquid medium is present, an outlet section in which an outlet pressure of the liquid medium is present, wherein the outlet section is coaxial with the inlet section, a middle section positioned between the inlet section and the outlet section, wherein an upstream chamber and a downstream chamber being in communication with each other through an adjustment orifice are provided within the middle section, a first functional group defined by a control device for controlling a differential pressure within the pressure independent control valve, a second functional group defined by an adjustment device suitable for increasing and/or decreasing the liquid flow through the adjustment orifice, wherein a first insert element providing the adjustment orifice is at least partially positioned within the middle section of the valve body, wherein said first insert element is placed within the middle section of the valve body through a first opening of the valve body provided at a first side of the middle section, wherein the control device providing the first functional group is at least partially accommodated with said first insert element, wherein an outer wall section of the first insert element provides a groove accommodating a sealing element, wherein said groove runs diagonally around said outer wall section so that the sealing element accommodated within said groove seals the upstream chamber against the downstream chamber, wherein said first insert element is placed within the middle section of the valve body through a first opening of the valve body provided at a first side of the middle section, wherein the control device providing the first functional group is at least partially accommodated with said first insert element, wherein an outer wall section of the first insert element provides a groove accommodating a sealing element, wherein said groove runs diagonally around said outer wall section so that the sealing element accommodated within said groove seals the upstream chamber against the downstream chamber, a second insert element is at least partially positioned within the middle section of the valve body, wherein said second insert element is placed within the middle section of the valve body through a second opening of the valve body provided at a second, opposite side of the middle section, wherein the adjustment device providing the second functional group is at least partially accommodated with said second insert element. wherein said second insert element is placed within the middle section of the valve body through a second opening of the valve body provided at a second, opposite side of the middle section, wherein the adjustment device providing the second functional group is at least partially accommodated with said second insert element.