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Marshall Excelsior

MPN: ME207

Marshall Excelsior ME207 Air Actuator for 3" Double Flange Internal Valves

Marshall Excelsior ME207 Air Actuator for 3" Double Flange Internal Valves


Regular price $675.00 CAD
Regular price Sale price $675.00 CAD
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The Marshall Excelsior ME207 Air Actuator is engineered for robust performance in the most demanding environments. Designed to fit 3-inch double flange internal valves, this actuator is ideal for remote locations or direct operation off the air brake system in bobtail or transport applications.

Key Features:

  • Heavy-Duty Construction: Built with a stainless steel frame to withstand tough conditions.
  • Smooth Operation: The cam mechanism ensures smooth opening of the internal valve lever when air, nitrogen, or carbon dioxide is applied.
  • Automatic Closure: The internal valve automatically closes when pressure is released.
  • Thermal Protection: Factory-provided thermal plug melts at 212°F (100°C) to release pressure and close the valve in case of fire.
  • No Modifications Required: Comes with all necessary hardware for easy installation.
  • Spring Return Design: Eliminates the need for an air return.


  • Actuator Type: #9 Chamber
  • Fits MEC Models: ME990S-3DF & ME990S-3DFM
  • Fits Fisher Models: C403-24 & C483-24 Series
  • Pressure Rating: 20 to 125 PSIG (138 to 862 KPa)
  • Recommended Operating Pressure: 20-25 PSIG (138-173 KPa)
  • Operating Temperature: -60°F to 250°F (-51°C to 121°C)
  • Material: Stainless Steel
  • Approximate Weight: 3.3 kg (7.3 lbs)
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