Flow reducer for adjusting condensate discharge of high pressure compressors comprising: - a tubular body which extends mainly along a longitudinal axis and: • is suitable to be coupled downstream a discharge duct of said condensate, connected with said high pressure compressor, in such a way that the inner volume of said tubular body communicates with the inner volume of said discharge duct; • presents an inlet of said condensate, suitable to be conjugated to the free end (E i) of said discharge duct, and an outlet, axially opposed to said inlet, suitable to be conjugated to the free end (E u) of an auxiliary duct for the connection with an external storage container; - an annular strike element, arranged within said tubular body characterized in that the annular strike element has in an outer wall oriented towards said inlet of said tubular body at least one surface incision facing to and directly communicating with the central through hole of said annular strike element; and in that the flow reducer further comprises - valve means, contained into said tubular body and suitable to be made axially movable by actuation means within a linear section of said tubular body between at least one rest position, coincident with the phase where discharge of said condensate is absent, in which said valve means are spaced apart by said annular strike element, and an operating position, coincident with the phase where discharge of said condensate takes place, in which said valve means are arranged close to said annular strike element and artiall penetrate into said central through hole of said annular strike element in such a manner that said surface incision continues to communicate with the inner volume of said tubular body and allows partialized dispensing of said condensate from said discharge duct towards said external storage container. - a tubular body which extends mainly along a longitudinal axis and: • is suitable to be coupled downstream a discharge duct of said condensate, connected with said high pressure compressor, in such a way that the inner volume of said tubular body communicates with the inner volume of said discharge duct; • presents an inlet of said condensate, suitable to be conjugated to the free end (E i) of said discharge duct, and an outlet, axially opposed to said inlet, suitable to be conjugated to the free end (E u) of an auxiliary duct for the connection with an external storage container; • is suitable to be coupled downstream a discharge duct of said condensate, connected with said high pressure compressor, in such a way that the inner volume of said tubular body communicates with the inner volume of said discharge duct; • presents an inlet of said condensate, suitable to be conjugated to the free end (E i) of said discharge duct, and an outlet, axially opposed to said inlet, suitable to be conjugated to the free end (E u) of an auxiliary duct for the connection with an external storage container; - an annular strike element, arranged within said tubular body characterized in that the annular strike element has in an outer wall oriented towards said inlet of said tubular body at least one surface incision facing to and directly communicating with the central through hole of said annular strike element; and in that the flow reducer further comprises - valve means, contained into said tubular body and suitable to be made axially movable by actuation means within a linear section of said tubular body between at least one rest position, coincident with the phase where discharge of said condensate is absent, in which said valve means are spaced apart by said annular strike element, and an operating position, coincident with the phase where discharge of said condensate takes place, in which said valve means are arranged close to said annular strike element and artiall penetrate into said central through hole of said annular strike element in such a manner that said surface incision continues to communicate with the inner volume of said tubular body and allows partialized dispensing of said condensate from said discharge duct towards said external storage container.