MVD4E15B

Function of MVD4E15B in aircraft systems

The main function of MVD4E15B is remote actuation of aircraft valves, shutters and regulating organs. The mechanism receives an electrical command from a cockpit switch, control unit or automatic system and turns the output shaft to the required position. This allows aircraft systems to regulate or shut off fuel, hydraulic, pneumatic or air flows without direct manual access to the controlled unit. The mechanism can be used for both partial positioning and full open / closed operation, depending on installation.

Application in ventilation, air conditioning and anti-icing systems

MVD4E15B is associated with aircraft ventilation, air conditioning and anti-icing systems. In these systems, the mechanism can move temperature-regulating dampers, air bypass valves, hot-air supply shutters and anti-icing dampers. It may control airflow from the engines to the cabin, cockpit, engine inlet guide vane heating circuits or wing leading-edge anti-icing ducts. Since the exact installation depends on aircraft type and system layout, applicability should be confirmed by the aircraft equipment list and maintenance documentation.

Use with fuel and hydraulic valves

In addition to air-system applications, MVD4E15B may be used with fuel and hydraulic valves that require remote rotary actuation. The actuator can open or close pipeline shut-off elements within its designed angular travel range. This makes it suitable for controlled aircraft pipeline fittings where compact size, repeatable operation and electrical command control are required. The connected valve or damper must match the actuator’s output torque, shaft travel, mounting interface and connector wiring.

Construction and travel limitation

The MVD4E15B mechanism includes an electric motor, reduction gear, output shaft, limit microswitches and protective elements. According to the supplied context, the unit has internal friction clutches that protect the drive and connected mechanism from overload. Limit microswitches disconnect motor power when the shaft reaches the preset end positions. This prevents continued motor operation after the commanded angle is reached and helps protect the actuator, linkage and controlled valve or damper.

Identification and ordering of MVD4E15B

Before ordering MVD4E15B, the buyer should confirm the aircraft type, installation system, required shaft angle, torque requirement, connector type, condition and documentation set. It is also important to clarify whether the unit is required as a standalone electromechanism or together with a damper, valve, linkage or mounting hardware. For aviation supply, passport availability, year of manufacture, storage condition, test records, shaft movement, limit switch operation and connector condition should be checked before shipment.

Related equipment: MVD4E6K, 771700, 771700MA. These links are grouped by function and system context and do not indicate interchangeability.