HYDROBARODYNAMIC DEVICE FOR CLEANING OF PIPELINES INNER SURFACE

摘要

FIELD: machine building. ^ SUBSTANCE: hollow stock ends in nozzle head piece(s) directed to periphery of cavitator-limiter of stroke provided with a spring, bearing against head piece(s), and a pusher entering stock cavity and ending with a valve detaching cuff cavity from nozzle head piece(s). ^ EFFECT: improving efficiency of device operation and its reliability. ^ 1 dwg