MSVW Surface Actuator | Schlumberger


Surface actuator

Our line of Saf-T-Gard actuators includes MSVW surface actuators, which feature interchangeable spring and wireline-cutting modules for easy, low-cost conversion from nonwirecutting to wirecutting applications.

Eight easily accessible external hex nuts enable removal of the actuator from the bonnet. In addition, the bonnet seal cartridge can be removed without breaking the bonnet and valve connection.


  • Reduced requirements for spare parts
  • Spring modules that are safety sealed for easy replacement
  • Rugged construction
  • Short, compact design
  • Easy seal replacement
  • External positive drift adjustment
Saf-T-Gard MSVW Surface Actuator

Working pressure and max. operating pressure, psi [bar] 5,000 [345]
Compatible valve sizes (nominal), in 2, 3, 4, 5, and 6
Operating temperatures, degF [degC] –20 to 250 [–29 to 121]
Actuators for other temperature ranges are available upon request
Materials Standard components: API AA
Retained-fluid components: API FF
Options Upper and lower electric proximity switches
Heat-sensitive lock-open caps
Manual overrides

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