MPK-13I-5

Function of MPK-13I-5 in aircraft systems

The main function of MPK-13I-5 is to provide remote electric actuation of controlled pipeline fittings. The mechanism can open or close fuel valves, hydraulic valves, air dampers and other regulating devices by command from the cockpit or automatic control circuit. It is suitable for systems where manual access is limited or where the valve must respond quickly to operating or emergency commands. The unit transfers motor torque through a gearbox to the connected valve shaft or damper lever.

D-10ARU motor and drive construction

MPK-13I-5 is supplied with a removable D-10ARU DC electric motor. The drive includes an electric motor, reduction gearing, output shaft, travel-limiting elements and a friction torque-limiting clutch. The friction clutch protects the gearbox and connected valve from overload when the mechanism reaches end positions or if the driven element becomes jammed. This construction allows the actuator to operate in demanding aircraft conditions while reducing the risk of damage to the valve, linkage or internal reducer.

Limited-angle shaft rotation

The MPK-13I-5 output shaft operates within a limited angular range. According to the supplied context, the working rotation angle can be limited by stops from 30° to 180°, with a full 180° travel time of about 11 seconds and a permissible deviation. This makes the mechanism suitable for valves and dampers with different required travel angles. During replacement or adjustment, the required travel angle, stop setting, end-position switching and shaft coupling should be confirmed by the installation documentation.

Aircraft and industrial application of MPK-13I-5

MPK-13I-5 is associated with aviation systems on Tu-154 and Tu-22 aircraft, as well as AI-20 engine-related installations, depending on documentation. It may be installed in wing, fuselage or engine nacelle compartments on fuel shut-off valves, hydraulic crossfeed or drain valves, emergency line switching valves, hot-air dampers and anti-icing system elements. The supplied context also notes use in gas pumping stations and ground installations based on aviation gas turbine equipment, where it controls fuel gas, oil or starting-air circuits.

Identification and ordering of MPK-13I-5

Before ordering MPK-13I-5, the buyer should confirm the exact modification, aircraft or equipment type, controlled system, required shaft travel angle, connector type, condition and documentation set. The mechanism is stated to be interchangeable with MPK-13A-5 and MPK-13K-5 according to the supplied context, but interchangeability should still be checked by installation documentation. The unit may be required for aircraft repair, replacement of valve drives, industrial turbine system maintenance or spare parts stock. Passport, test records and adjustment data should be verified before shipment.

Related equipment: MPK-13A-5 Series 2, MPK-13BTV, MPK-15-5 Series 2. These links are grouped by function and system context and do not indicate interchangeability.