A flow control device designed to be positioned at a junction area between a first line carrying a first fluid and a second line carrying a second fluid towards the first line , the flow control device comprising: - at least one wall member forming at least part of the peripheral wall of the first line , said wall member having an opening and being movable so as to reduce the cross-section of the first line , in the vicinity of the opening , from a full section state to a reduced section state, in use; - a valve comprising: - a housing secured to the wall member and having an inner passageway between a first port and a second port in fluid communication with the second line ; - a shutter which is at least partially mounted in said housing and which can move in said housing between a closed position, in which the shutter closes the inner passageway , and an open position, in which the second fluid can flow through said inner passageway ; - an actuator connected to the shutter , which can be moved with respect to the housing , and accordingly move the shutter in said housing , between a first position, corresponding to the closed position of the shutter , and a second position, corresponding to the open position of the shutter , the relative position between the housing and the wall member remaining unchanged during this movement of the actuator ; wherein the actuator is arranged to be further movable from its second position to a third position and to cause, during this further movement, a move of the valve from a neutral position towards a sucking position, and to cause accordingly a move of the wall member secured to the housing , from its full section state towards its reduced section state; characterized in that • the first port is in fluid communication with the wall member opening ; and in that • the housing is secured to the wall member in such a way that the first port substantially coincides with the wall member opening . - at least one wall member forming at least part of the peripheral wall of the first line , said wall member having an opening and being movable so as to reduce the cross-section of the first line , in the vicinity of the opening , from a full section state to a reduced section state, in use; - a valve comprising: - a housing secured to the wall member and having an inner passageway between a first port and a second port in fluid communication with the second line ; - a shutter which is at least partially mounted in said housing and which can move in said housing between a closed position, in which the shutter closes the inner passageway , and an open position, in which the second fluid can flow through said inner passageway ; - a housing secured to the wall member and having an inner passageway between a first port and a second port in fluid communication with the second line ; - a shutter which is at least partially mounted in said housing and which can move in said housing between a closed position, in which the shutter closes the inner passageway , and an open position, in which the second fluid can flow through said inner passageway ; - an actuator connected to the shutter , which can be moved with respect to the housing , and accordingly move the shutter in said housing , between a first position, corresponding to the closed position of the shutter , and a second position, corresponding to the open position of the shutter , the relative position between the housing and the wall member remaining unchanged during this movement of the actuator ; • the first port is in fluid communication with the wall member opening ; and in that • the housing is secured to the wall member in such a way that the first port substantially coincides with the wall member opening . <EOS>