FIELD: pipe line transport. SUBSTANCE: gate, chamber, and connecting rod having handle and head with polyhedral socket are secured to a pipe line provided with side opening and outlet. A nut which interacts with a screw is received in the socket. A thrust elliptical disk is eccentrically secured to the screw. A traverse with bearing is mounted on the chamber. Sleeve with a seal and pressing bushing with a quick-detachable lock are mounted on the connecting rod. EFFECT: simplified design. 4 dwg
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