As reliable as versatile


Fahlke PLAZ® pneumatic linear actuators offer quality and reliability made in Germany. Automation requirements are perfectly met, thanks to the large line of Fahlke PLAZ® actuators with its many operating cylinder variants. All Fahlke pneumatic actuators are maintenance-free and waterproof in accordance with IP68. The interior surface of all cylinders is honed, made of chemical nickel and is corrosion-free and completely welded. The PLAZ® actuator offers a special adaptor system, which ensures a rapid assembly on any valve. The PLAZ® is also available as a regulating actuator (PLAZ-R®) and a safety shutdown valve (SSV) and can of course be supplied with a pressure reserve tank and hand pump unit for emergency actuation.


All linear valves in the sizes 1″ to 60″ as well as a force range of 10 to 1,000,000 N can be automated.

Technical data

  • Double-acting (failsafe close / failsafe open / fail in position)
  • Spring force return (SR) (failsafe close / failsafe open)
  • Control cabinet of mat. 1.4301 (IP65)
  • Connection terminal box (IP65)
  • Air connection and shut-off valve made of stainless steel
  • Maintenance unit consisting of filter, oiler and pressure regulator
  • Stainless steel pressure gauge
  • Solenoid valves: 24V DC or according to customer specification
  • Pipework and fittings made of stainless steel
  • Terminal box for heating and solenoid valve
  • Actuator protection class: IP68
  • Signalling of the end positions (open/close)
  • Temperature range: -60°C to +70°C


  • ESD function
  • Pressure pilot monitoring (high pilot and/or low pilot)
  • Pressure reserve tank for up to three reserve actuator strokes
  • Selection switch for local or remote control
  • Line break system (pneumatic/electronic)
  • Control cabinet with thermal insulation
  • Heating, thermostat-controlled: 100 W, 230 V AC
  • Galvanic separation from the cathode-protected pipeline
  • Profibus DP or Modbus interface