explosion proof valve actuator


B Series Heavy Duty Valve Actuators

The Assured Automation B Series Electric Valve Actuators offer a simple and cost effective solution for your valve automation needs. For use on quarter turn (90°) ball valves, butterfly valves, plug valves and dampers. Available in a wide range of output torques and operating speeds to fit your specific requirements.

B Series Electric Actuators are low maintenance, combining compact design and modular construction with a large array of available options for a variety of applications.


Electric Actuator on Various Valves

B Series Heavy Duty Electric Actuators on various valves

Features & Benefits

  • Heater and thermostat installed in all actuators
  • Hardened steel drive shaft
  • Rugged Enclosure for Industrial Applications
  • Manual Override on all units
  • Visual Open/Close Indicator
  • Large terminal strip for easy wiring
  • ISO mounting bolt pattern and square drive shaft
  • Thermal overload protection
  • 2 SPDT limit switches for on/off service (0° & 90°)

Typical Applications

  • Ball valves
  • Butterfly valves
  • Plug Valves
  • Hazardous locations


  • Modulating control board with digital calibration
  • Extra switches (2 standard, 2 more optional)
  • Male drive shaft
  • On-board relays, feedback sensors and timers
  • Failsafe spring return
  • Heavy duty brake
  • Weatherproof (NEMA 4/4X) or Explosion Proof (NEMA 7)


  • Enclosure: Epoxy powder coated aluminum
  • Main External Drive Shaft: Hardened steel
ISO 5211 Direct Mount Connections
  • 300: F04 w/ 11mm star (square)
  • 500: F07/F10 w/ 17mm star (square)
  • 800: 3.25 & 5 inch 4-bolt circle w/ 35mm bore with key
  • (male drive shafts optional)
Electrical Connection
  • (2x) 1/2"-14 NPT conduit
  • Internal wiring terminal strip
Temperature Range:
  • -40°F to 150°F
Enclosure Rating:
  • NEMA 7
Duty Cycle:
  • AC Units: 30%, 75%, or 100%
  • DC Units: 100%
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Please contact us to verify any information that is critical to your application..