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Part-turn actuators, Compact actuators

SG2+MEC

The "small" electric part-turn actuator range with separate MEC controls.

All parameters are directly set at the MEC controls. The controls contain switchgear, power supply unit, interface to the DCS. The controls automatically switch the actuator off once the valve end position is reached, motor overheating is detected or a torque overload has occurred.

All housing components of the actuator are made of bronze, all external screws are made of stainless steel. This ensures complete resistance against seawater even over a longer time period. The housing of MEC controls is made of aluminium provided with AUMA powder coating also achieving a premium corrosion resistance.

The actuators are designed for open-close duty and positioning duty (classes A and B) / (short-time duty S2 - 15 min), the variant for modulating duty (class C) S4 - 40%.

Torque range

25 Nm to 500 Nm

Seawater resistant for open-close and modulating duty

Design features

  • Limit and torque seating
  • Variable speed, brushless motor
  • Handwheel for manual operation

Service conditions

  • Wide temperature range
  • Highest enclosure protection
  • High quality corrosion protection
  • Shock proof tests for the military shipbuilding industry

Options

  • Local controls at MEC

Interfaces

  • Maximum 4 binary inputs and outputs. Signal assignments can be configured
  • Option: 4 – 20 mA position feedback
  • Option: analogue input for positioner

Specifications

Key information at a glance

Design features

Service conditions