FIELD: oil and gas industry.
SUBSTANCE: device includes the first pipe (4), having axial duration and an inlet hole (5), and the first wall (6) with an axial channel (7), passing in the first wall from the said inlet hole, the second pipe (8), having the first and the second ends (9) and an outlet hole (11). The second pipe is installed with the possibility of rotating inside the first pipe, wherein it has the second wall (12) with the axial channel passing in the second wall from the first end to the outlet hole.
EFFECT: increased reliability, expanded process capabilities.
16 cl, 14 dwg
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