Bettis GVO Linear Pneumatic Valve Actuator
The Bettis GVO-Series is a field proven linear valve actuator suitable for automating most types of rising stem valves in safety shutdown and control applications.
The Bettis™ GVO Linear Pneumatic Valve Actuator, developed by Emerson, is a high-performance, heavy-duty actuator designed to deliver precise and reliable linear motion for controlling valves in the most demanding process applications. Engineered for oil and gas, refining, petrochemical, and power generation industries, the Bettis GVO actuator combines robust construction, fast response, and long service life to ensure dependable performance in both onshore and offshore environments. This pneumatic piston-type actuator converts air pressure into linear motion, providing powerful thrust to operate gate, globe, or other linear control valves. It is suitable for both on/off and throttling operations, offering smooth, accurate, and repeatable valve positioning. The GVO actuator features a modular, corrosion-resistant design that simplifies installation, maintenance, and integration with control systems. Its field-proven sealing technology and rugged cylinder construction guarantee reliable operation even under extreme temperatures, high pressures, or corrosive conditions. With options for single-acting (spring-return) or double-acting configurations, the Bettis GVO actuator ensures maximum flexibility and safety in critical process control systems.
Technical Specification of Bettis GVO Linear Pneumatic Valve Actuator
- Power Source
- Pneumatic
- Product Type
- Pneumatic Actuator
- Actuation
- Linear, Double-Acting
- Certifications
- ATEX, PED, SIL capable (CE)
- Control Type
- On/off
- Valve Type
- Slab, Wedge, Knife, Expanding Gate, Globe, Rising Stem Ball Valves, and Dampers
- Operating Temperature
- From -60 °C to 100 °C (From -76 °F to 212 °F)
- Operating Pressure
- 12 barg (174 psi)
- Thrust
- Double-acting thrust up to 1600000 N (360000 lb), Spring ending thrust up to 450000 N (101000 lb), Spring starting thrust 540000 N (121000 lb)
Feature of Bettis GVO Linear Pneumatic Valve Actuator
- Automates most types of rising stem valves- slab, wedge, knife and expanding gate, globe, rising stem ball and dampers
- Extended stroke for each model
- Optional materials of construction for sour service
- Options include limit switches, relays, solenoids, pressure pilots, dampeners and manual overrides
- Travel adjustment on top and bottom makes sure the piston stops on the actuator not on the valve, protecting valve seat
- Standard open pedestal design, closed pedestal is available on request
- Hard chromium plated and polished stainless steel piston rod guarantees corrosion protection and minimal friction