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Bettis GS-Series Scotch Yoke Hydraulic Valve Actuator
Bettis GS-Series Scotch Yoke Pneumatic Valve Actuator
A hydraulic, scotch yoke, actuator that is well suited for splash zone, riser and other offshore failsafe applications.
They are available with diver or ROV intervention systems.
Bettis GS-Series Scotch Yoke Hydraulic Valve Actuator


Power Source
Product Type
Hydraulic Actuator
Enclosure Sealed( specific IP rating available upon request)
RoHS Statement
This product is only intended for use in large-scale fixed installations excluded from the scope of Directive 2011/65/EU on the restriction of the use of certain hazardous substances in electrical and electronic equipment (RoHS 2).
Control Type
On/Off, ESD
Valve Type
Ball, butterfly, and plug valves, louvers and dampers, and other quarter-turn mechanisms
Operating Temperature
Standard -40°C to + 66°C (-40°F to +150°F)
Double-acting models: 1420 to 678,000 Nm (12,581 - 6,000,000 in-lbs)
Operating Pressure
Up to 40-220 psig (3-14 bar)


  • Over fifteen alerts and alarms to help alert users of abnormalities in the system
  • Backed by a five-year material and workmanship warranty
  • Patented Tension-lok device positively locks the spring module to allow its safe removal and installation, eliminating accidental release of the spring force
  • PED 97/23/EC compliant to meet the stringent requirements of pressure mounting vessels
  • Meets both IP66 and IP67M specifications for submergence and high pressure water deluge test and offers superior water ingress and corrosion protection
  • Offers multiple configurations, with a modular design that enables safe field maintenance and reduced inventory costs
  • Interchangeable power and spring modules for quick reversal of the fail-safe mode
  • Suitable for use in demanding applications requiring SIL environment
  • Adds an extra measure of versatility with its field serviceable modular configuration. It can be altered from a single acting to a double-acting and add a hydraulic manual override after installation
  • Offers a variety of mechanical and manual overrides for G-Series models
  • Offers complete valve operating system (VOS) for final valve control by combining the G-Series actuator, controls and a valve in a singular system