FIELD: shut-off and adjusting fittings in gas and oil producing industry for remote and local control. SUBSTANCE: pneumatic drive includes the following component connected in series: electropneumatic control unit with limit switches, electropneumatic valves, gas flow regulators and reversible jet engine; shaft of jet engine is connected with output shaft of drive through link- screw swivel mechanism having body, mounting flange, motion screw, motion nut, guide, link and kinetic energy absorbing unit; motion screw and kinetic energy absorbing unit are interconnected by leverage; kinetic energy absorbing unit is located in body of link-screw swivel mechanism in parallel with motion screw. EFFECT: enhanced reliability. 9 cl, 6 dwg
