HERZ Electric Actuators Series (Thermo-Electric, Motoric, and Rotary Types)


The HERZ Electric Actuator Series from HERZ Armaturen offers a complete portfolio of thermo-electric and motor-driven actuators for linear and rotary control valves up to DN 65 and beyond. Designed for on/off, 3-point, or modulating operation, these actuators deliver precision control, energy efficiency, and silent operation. With torque outputs up to 9000 Nm and linear forces up to 2500 N, the range covers all control and isolation requirements in modern heating, cooling, and water systems.
  • 🔹 Control Types: ON/OFF, 3-point, and 0–10 V modulating control.
  • 🔹 Voltage Options: 24 V AC/DC, 100–240 V AC, and 230 V AC.
  • 🔹 Force/Torque Ratings:
    •  Linear actuators: 100 N – 2500 N.
    •  Rotary actuators: 5 Nm – 10 Nm.
    •  Heavy-duty actuators (ITQ series): up to 9000 Nm.
  • 🔹 Movement Range: 5–40 mm stroke (linear) / 90° rotation (rotary).
  • 🔹 Manual Override: Integrated or push-button disengagement.
  • 🔹 Position Feedback: 0–10 V signal (available on modulating models).
  • 🔹 Protection Class: IP 54 – IP 68 depending on model.
  • 🔹 Operating Temperature: 0 °C – +80 °C (standard).
  • 🔹 Housing: Fire-retardant or anodized aluminum enclosure.
  • 🔹 Drive Interface: ISO 5211 (rotary) or M28 × 1.5 threaded (linear).
  • 🔹 Certifications: CE, UL, EN 60730-1 / -2-14 compliance.
  • 🔹 Maintenance: Fully maintenance-free design.
  • 🔹 Precision control for both linear and rotary valve applications.
  • 🔹 Energy-efficient performance with silent operation.
  • 🔹 Flexible voltage and signal compatibility for system integration.
  • 🔹 Robust, corrosion-resistant housing for industrial environments.
  • 🔹 Manual override and visual position indication for maintenance ease.
  • 🔹 Compatible with HERZ linear control valves, rotary valves, and butterfly valves.
  • 🔹 Maintenance-free operation ensures long-term reliability.
  • 🔹 HVAC control systems – for heating, cooling, and ventilation circuits.
  • 🔹 Building automation – integrated zone and flow control.
  • 🔹 Fan coil and terminal unit management.
  • 🔹 District heating and chilled water systems.
  • 🔹 Industrial fluid and process control.
  • 🔹 Motorized ball, butterfly, and globe valve operation.
  • 🔹 Energy-efficient hydronic balancing and modulation.
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