Actuators Electric

For mounting on quarter-turn valves (butterfly, ball…) & dampers, on multiturn and on linear valves (gate, plug, sluce gate…).
SQ & ST RANGES

BERNARD CONTROLS’ weatherproof actuators – SQ & ST models – are adapted to all types of valves and to On-Off and non intensive positioning operation (Modulating Class III).

  • Adaptation to specifications of engineering companies
  • IP 68 standard
  • INTELLI+, intelligent control
  • Easy and fast commissioning
  • Optimised maintenance level

Explosionproof Actuators

For mounting on quarter-turn valves (butterfly, ball…) & dampers, on multiturn and on linear valves (gate, plug, sluce gate…).
SQX & STX RANGES

BERNARD CONTROLS’ explosionproof actuators – SQX & STX models – are adapted to all types of valves and to On-Off and non intensive positioning operation (Modulating Class III).

  • Adaptation to specifications of engineering companies
  • IP 68 standard
  • Compliance with international explosionproof standards: ATEX, CEPEL, IEC-Ex, GOST-Ex, NEMA 7 & 9…
  • Special configurations: Corrosion protection, Fire protection, Extreme temperatures
  • INTELLI+, intelligent control
  • Easy and fast commissioning
  • Optimised maintenance level

Modulating

Designed to position the valve precisely and to withstand an intensive operation service (100% service). Available for quarter-turn actuators, multiturn actuators and linear devices.
Main models within the range: MA – MB – MAS – MBS – UX 100 % duty service
Different models suitable for use as:

  • Class II modulating: moderate speed, high precision
  • Class I modulating: high speed, very high precision
  • Quarter-turn, linear, multiturn and lever movements
  • Specific turnkey electronic control solutions available

Fail-safe Actuator

This actuator model ensures automatic return of the valve to a safe position in case of alarm signal or lack of power supply. Solutions available for actuation of quarter-turn devices. Main models within the range: FQ

  • Failsafe with reliable spring-return technology
  • Fast and shock-free valve travel during emergency operation
  • Maintenance-free
  • IP67 as standard
  • Explosionproof versions (ATEX-NEMA)

Special Design Nuclear Range and Special Actuators

Thanks to 40 years of continuous experience in the Nuclear industry, and 75 years of know-how overall, we have developped product ranges adapted to critical applications.

  • Fire protection
  • Nuclear grade
  • High and low temperature
  • Corrosive environment
  • Hydraulic multiturn actuators for LNG carriers & offshore applications

Controls

BERNARD CONTROLS offers advanced turn-key actuators control solution, adapted to on-off, Class III positioning or Class I & II intensive modulating operations, and which simplifies the design of the motorized valve control circuit as many functions are already built-in.

  • Non intrusive settings
  • User friendly and multilingual interface
  • Advanced functions such as ESD, partial stroking …
  • Positioners for Class III, Class II and Class I modulating duty
  • Fieldbus interfaces

Fieldbus

Fieldbus is used more and more to communicate information and commands with multiple actuators and contactors wired in series on a single pair of wires.
Thus, the number of information from each actuator can be multiplied while reducing the overall cost of wiring on the site.

  • Compatible with all BERNARD CONTROLS actuators
  • Profibus DP (single or redundant)
  • Foundation Fieldbus
  • Modbus RTU
  • Turnkey system based on Master Station architecture