Control device (МУ-1) in accord with TU U 24607422.010-2000 is intended for opening (closing) of internal check valve cover and fixation thereof in open position.

Control device МУ-1 is installed together with internal check valves which internal diameter is equal to 80, 100,150 mm.
МУ-1 operating temperature: from minus 40 to plus 50°C.

МУ-1 is mounted on the side wall of the tank above the internal check valve.

Body of the control device, with drum and cable, is located inside, whereas drive unit (hand wheel) is outside the tank.