Bettis GVO-Series Hydraulic Linear Valve Actuator

The Bettis™ GVO-Series Hydraulic Linear Valve Actuator, developed by Emerson, is a high-performance, heavy-duty linear actuator designed to provide precise, reliable control of rising-stem valves in the most demanding industrial environments. Engineered for on-off, throttling, and emergency shutdown (ESD) operations, the GVO-Series combines powerful hydraulic performance with robust mechanical construction, ensuring safe and dependable valve operation under extreme service conditions. The Bettis GVO-Series actuator utilizes pressurized hydraulic fluid to generate high thrust output for gate, globe, and choke valves. Its compact, balanced design minimizes side loading, while its low-friction seals and bearings enhance efficiency and extend service life. Available in both double-acting and spring-return configurations, the actuator can be tailored for fail-open or fail-close operation, providing fail-safe reliability critical to oil & gas and process control applications. With its rugged, corrosion-resistant construction, the GVO-Series is ideal for use in offshore, subsea, and remote installations, delivering long-term durability, smooth control performance, and reduced maintenance requirements.

Technical Specification of Bettis GVO-Series Hydraulic Linear Valve Actuator

Power Source

Hydraulic

Product Type

Hydraulic Actuator

Actuation

Linear, Double-acting

Certifications

SIL 3 suitable, ATEX. PED 97/23/EC – Pressure Equipment Directive, IP66/IP67M

Control Type

On/off, ESD

Valve Type

Slab, wedge, knife, expanding gate, globe, rising stem ball valves, and dampers

Operating Temperature

Standard -23 °C to +74 °C (-10 °F to +165 °). Consult factory for low-high temperatures.

Feature of Bettis GVO-Series Hydraulic Linear 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
• External tie bars allow contained energy release in event of over-pressure
• 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
• GVO HP-DA, hydraulic linear actuator, double acting, cylinder size from 4” to 24”, MAWP up to 1,500, 2,000, 3,000 psi
• GVO HP-SR, hydraulic linear actuator, spring to extend, hydraulic cylinder size from 4” to 24”, MAWP up to 1,500, 2,000, 3,000 psi, spring preload up to 53,000 lbs (235,755 Nm)
• GVO HP-FS, hydraulic linear actuator, spring to retract, cylinder size from 4” to 24”, MAWP up to 1,500, 2,000, 3,000 psi, spring preload up to 53,000 lbs (235,755 Nm)