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Electric Asahi Master Chief™ Control Valve Solution

The Norriseal control valve with the Electric Asahi Master Chief solution is designed to fit a rotary electric actuator to a linear stem valve allowing for a simple and efficient method of converting rotary to linear motion. The solution is composed of a rotary electric actuator, a rotary to linear adapter, and our best-in-class linear stem control valve. Increase your operational efficiency, maintain, or improve your automated control, lower emissions, and lower your costs with our field-proven Asahi control valve solution.

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Verto Valve Control Solution


Package Features:

  • Trouble free, emissions friendly actuator
  • Simple and high-efficiency rotary to linear motion conversion
  • Accurate automated valve control
  • Rugged and field proven

Rotary to Linear Converter Tool features:

  • Easy installation
  • Force loaded seat to accommodate seat wear
  • Environmental Resistant Enclosure
  • Rugged and durable
  • Maintain original travel indication
  • Accurate travel for throttling
  • Environmentally friendly
  • No modifications needed to install

Actuator Features:

  • Class 1, Groups C & D Certified
  • 2000 in/lbs torque
  • 24VDC Power
  • 4-20mA Position Control
  • Configurable failure modes (fail open, fail close, fail last)


  • Voltage : 24VDC
  • IO : 4-20mA
  • Hazardous Area Rating : Class 1 Groups C & D
  • Env. Rating : Nema 4, 4X
  • Speed = Full Stroke/Quarter Turn, 15 Seconds
  • Duty Cycle = 75%, Automatic Reduction If Overheating Present

Electric SmartStep™ Control Valve Solution

The Norriseal control valve with an Electric SmartStep actuator offers a failsafe method to electric actuation and mounts to any of Norriseal’s 2200, 2400 and 2700 Series control valves. The solution is composed of a rotary electric actuator, a rotary to linear adapter, and Norriseal’s
best-in-class linear stem control valve.

  • Available in 1” and 2” sizes NPT and flanged
  • ANSI ratings from 150# to 2500#
  • Fail-safe power backup option with capacitor technology eliminates the need for battery backup in case of a loss of power or control signal — it enables the valve to return to a preset safe position
  • Ability to use digital on/off signal from switches or 4-20mA analog signal for throttling capabilities
  • High-efficiency rotary-to-linear valve adapter kit
  • Emissions free and environmentally friendly
  • Cycle time on 5/8” travel is faster than other comparable electric offerings
  • Field proven design with electric compressor or production equipment skids
  • UL/CUL and CE approved with Class 1, Division II, Group A, B, C, and D Hazardous location rating
  • Configurable failure modes (fail open, fail close, fail last)
  • Programable start/stop points, drive speed, and safe position
  • Three relay outputs for external monitoring open/close positions and errror positions
  • Clear LCD display shows valve status values and service notifications, including valve position, cycle count, system errors, temperature, electrical and many others
  • Life expectancy of power backup option is greater than 10 years due to super capacitor technology
  • ± .5 Degree position accuracy. (4-20mA control)
  • Electrical
    • 24VDC Input – 3.3 Amp Max Draw
    • 48VDC Input – 1.67 Amp Max Draw
  • 4-20mA input and output with actual position feedback
  • Up to 700 in/lbs. thrust
  • Default Speed: 3-4 seconds (programable between 2.5 and 8 seconds)
  • -30°C to 60°C (-22°F to 140°F) operating temperature.
  • Hazardous area rating: Class 1 Groups C & D
  • Heavy duty aluminum NEMA4 enclosure

* Actuator specifications will change based on control valve size.

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