Regulating controls

The Fahlke regulating controls used by all gas providers are available in pneumatic and electrohydraulic version. The controlled valve actuators as well as the associated valves can be moved between 0° and 90° exactly to any desired position in the tenth range (0.1% or <0.1°). In this way, the pressure or flow of your pipeline is safely and accurately regulated.


In combination with high pilots or line break detection systems integrated in the control you can implement quick strokes as well as safety-related protections.


The advantages of the Fahlke regulating units are obvious: Speed, accuracy and operational safety.

Technical data

  • Available for double-acting or single-acting spring-return actuators
  • Control cabinet made of corrosion-free stainless steel
  • The regulating actuator remains in position or moves to the failsafe position in the event of failure of the control voltage
  • High resolution of the control signal: 0.1% ≈ 0.1° position of the valve
  • Control of the regulator (setpoint): 4-20mA
  • Feedback of the regulator (actual value): 4-20mA
  • Permissible ambient temperature: -60°C to +60°C
  • Proportional solenoid valve 4/3-way
  • Block valve 2/2-way
  • 2-way block valve, 2/2-way
  • Manual actuation via control valve 4/3-way after overload in case of power failure
  • Connection terminal box (IP66)
  • Position control unit, Ex d IIB T4, 4-20mA
  • Sensor box mounted on actuator (IP66)
  • Sensor type: Potentiometer: 4-20mA


  • Control via HART protocol
  • Regulator standard signals e.g. 4 – 20mA or 0 – 10V
  • Temperature range according to customer specification
  • Intrinsically safe regulator