FIELD: ultrasonic measurement technology. SUBSTANCE: gear can find use in petrochemical and chemical industries. Gear includes converter 2 installed with clearance in branch pipe 3 and pressed with bolt 6 by means of thread 4 via spacer 5 through hole. Screw 7 is put into hole of bolt 6. Gear also has first chamber 10, sealing spacer 9, end face gripper 11, thrust ring 18 to feed excessive pressure, rod 19 of end face gripper, travel limiter 20, gland seal 21, nut 22, handle 23, nut 24. EFFECT: simplified design.
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