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PRD series

Proven for decades
actuation technology & process reliability

PRD/PRE series

For decades, the pneumatic rotary actuator series PRD/PRE has been standing for proven actuator technology and process reliability. It combines a number of application-specific features and is the ideal solution for almost all requirements in pneumatic valve automation thanks to its large and finely subdivided torque range.

The proven rack-and-pinion design ensures a durable and reliable application in continuous operation even under the toughest conditions. It enables the highest possible torque output in harmony with a compact and weight-saving design.

Due to the design with internal slide bearings, the actuators of the PRD/PRE series are absolutely maintenance-free. The requirements for easy maintenance are also fully met thanks to the actuator technology and the captivated safety springs.

Thanks to the consideration of all common market standards for the connection interfaces, the PRD/PRE actuator series offers maximum modularity when combined with valves and accessory components such as solenoid valves, limit switches or positioners. Due to the use of high-quality aluminum alloys and anodized surfaces, the actuators are highly corrosion-resistant and can also be used in demanding environmental conditions.

Technical data

  • Construction
    Double piston actuator, rack and pinion design
  • Size
    17 actuator sizes
  • Body
    Aluminium alloy
  • Temperature ranges
    -50° … 70°C / -15° … +160°C / -60° … +200°C
  • Torques
    double-acting: 3 … 6.400Nm
    single-acting: 4 … 2.200Nm
  • Pivoting angle
    90°, 120°, 135°, 180°, 3 position actuators

Who we are

ProtACT GmbH is your best possible partner for the most modern automation.

We support you in fields of activity such as:

• Industrial valves
• Valve automation
• Automation components and their accessories


Quality is our system.
We are ISO 9001 certified.

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ProtACT GmbH
Märkerstraße 18
56307 Dernbach

+49 (0) 2689 92259-0