Electric Linear Actuators (Type ELA)

For specific applications, BESI Marine Systems GmbH delivers electric linear actuators of type ELA. These are reliable, robust and long enduring actuators that may be used in all dry sections of the ship. Torques range up to 3000 NM. These linear actuators are typically used for 2 and 3- way regulation valves.


BESI ELA electric linear actuator may be installed in any dry location in horizontal or vertical position. The actuator only needs one electric supply cable – which in standard application, is also used for signal transmission. Upon request, the actuators are delivered ready assembled to a valve. The actuator connection to any kind of regulating valve can be realized by adaption of the shaft dimensions.

Position response

The BESI ELA electric linear actuator are equipped with local position indication. Upon request, the remote position indication can be supplied with remote open / close position indication or as continuous remote position indication. The remote position indication can be visualized and processed in decentralised and compact units or integrated into BESI RCV remote control and automation system.

Emergency operation

Every EST actuator is delivered with a built in declutchable gear and hand wheel for local or emergency operation


  • At customers choice, the BESI ELA electric linear actuator may be delivered with 230V or 380/400V electric motor.
  • The standard protection class is IP66, however protection class IP67 may be delivered upon request.
  • The BESI type EST actuator may be delivered as an integral part of the BESI TMS>>BUS system with an installed ASI-bus module.
  • Painting and coating is in standard BESI blue, but may be delivered at customers choise in any other color.
ISO 9001 certified

BESI Marine Systems GmbH
Vorweide 4
D-28259 Bremen