MVD4E15B

MVD4E15B rotary electromechanism

MVD4E15B is an aviation rotary electromechanism with limited output shaft travel. The unit is used in onboard automation systems and aircraft equipment where accurate positioning of dampers, valves or regulating elements is required. It converts electrical energy from the aircraft DC network into controlled mechanical rotation. The mechanism is suitable for installations where the connected device must rotate within a defined angular range and stop at preset positions.

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.

Product Type: Rotary aircraft electromechanism / limited-angle actuator
Designation: MVD4E15B
Russian Designation: МВД4Е15Б
Alternative Designations: МВД-4Е15Б, MVD-4E15B, MVD4E15B
Function: Remote positioning of dampers, valves, shutters and regulating elements
Application / Where Used: Aircraft ventilation, air conditioning, anti-icing, fuel, hydraulic and pneumatic systems
System / Installation Area: Temperature-regulating dampers, air bypass valves, anti-icing dampers, fuel valves, hydraulic valves and air-flow control units
Drive Type: Rotary electromechanism with limited output shaft travel
Nominal Supply Voltage: 27 V DC
Output Torque: 40 kgf·cm
Current Consumption: Not more than 1.75 A
Output Shaft Travel Range: 30° to 270°
Travel Adjustment: By limit microswitches / end-position setting according to source context
Duty Mode: Intermittent / repeated short-time operation
Dimensions: 76 × 116 × 215 mm
Weight: 1.8 kg
Construction Features: Electric motor, reducer, output shaft, friction overload clutch, limit microswitches and plug connector
End-Position Control: Limit microswitches disconnect motor power at preset shaft positions
Overload Protection: Internal friction clutches according to source context
Related Components: Dampers, valves, shutters, linkage elements, mounting hardware, connector wiring and control switches depending on installation
Condition: New / As-Stored / Overhauled / Serviceable, depending on availability
Technical Documentation: Product passport, wiring diagram, connector pinout, aircraft or equipment maintenance documentation, test records and inspection documents if available

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Returns & Changes (Restocking Fee)
For selected items, a RESTOCKING FEE of 10% may apply in case of return, order cancellation, or changes to the order specifications. This condition applies only to certain products and is confirmed at the order approval stage.

Warranty
All products are covered by a standard 6-month warranty.
Extended warranty is available upon request and is agreed individually; it may affect the final product price.