FIELD: cleaning of pipeline internal surfaces. SUBSTANCE: reactive head has cutter head mounted on dead end of branch pipe for rotation and longitudinal displacement. Branch pipe is rigidly connected with shank provided with nozzle mounted for longitudinal displacement. Cutter head has striking mechanism with two cavities provided with grooves cut in ends faced one toward the other. One part is attached to shank and other part is fixed on cutter head. EFFECT: increased efficiency, simplified construction and enhanced reliability in operation. 2 dwg
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