RVA: Rotary Vane Actuator
Optimized for ball valve torque performance
Engineered for extreme conditions, designed by the severe service experts.
Our hydraulic rotary vane actuator delivers unmatched durability, extended service life, and cost savings. Built for mining’s harsh environments, it delivers and performs exceptionally well in high temperature, high corrosion, high abrasion, and high pressure severe service environments.
Designed and manufactured for ball valves by the ball valve experts.
Up to 3000 psi
Carbon Steel
Other materials upon request
On/Off, ESD
Quarter turn valves – i.e Ball, Plug, Butterfly
ISO 9001:2015
ValvTechnologies Manufacturer Standard
ISO 5211
Others upon request
- 11 Sizes Available up to 11,736,000 in-lb of torque
- Pressure Rated up to 3,000psi
- Operates in extreme environments: -20°F to 250°F
- Suitable for slurry, natural gas and other applications
- Seamless integration with ValvTechnologies valves
- Compatible with other valves configured with proper mounting
- Purpose-built for large bore severe service isolation valves.
- Constant torque output across full stroke.
- Balanced force vectors reduce side loading on valve stems
- Delivers a fully integrated severe-service solution when paired with ValvTechnologies’ valves
- Supported by a global service team focused on actuation
- Backed by a 10-Year workmanship warranty
- Simplified, Robust Design: Design enhancements to reduce potential leak paths, minimize maintenance, and extend service life. Fewer moving parts mean fewer failures and lower total cost of ownership.
- Seamless Integration with ValvTechnologies Valves: optimized to pair with ValvTechnologies’ valves, creating a fully integrated severe-service solution. This synergy ensures maximum performance and reliability across the entire valve-actuator package.
- Designed for severe service environments. Purpose-built for large bore isolation valves.
- Simplified, Robust Design: Opposite chambers in the actuator are connected by pressure equalizing passages in the upper and lower head.
- Simplified, Robust Design: The actuator produces well-balanced torque as hydraulic force pushes both of the rotary vanes away from the shoes
RVA: Rotary Vane Actuator Frequently Asked Questions
How does a rotary vane actuator compare to rack-and-pinion actuators?
Rotary vane actuators deliver significantly higher torque output in a more compact form factor. Their constant torque performance, simplified design with fewer moving parts, and enhanced reliability make them superior to rack-and-pinion actuators, especially in demanding service conditions.
What rotation angles are available?
RVA supports a standard 90° rotation +/- 5 degrees with adjustable stops and over-travel capability, ensuring precise valve alignment and sealing.
How much torque can the RVA deliver?
The RVA actuator delivers consistent, high torque throughout the entire stroke, configurable for mid-size to large valves, powered hydraulically up to 3,000 psi with torque output reaching 11,800 in-lb.
What operating pressures are supported?
The minimum operating pressure is 250 PSI. RVA actuators support pressures up to 3,000 PSI (207 bar), delivering reliable performance in severe-service environments. Maximum allowable working pressure (MAWP) varies by actuator size: smaller models are rated up to 3,000 PSI, mid-range models up to 2,000 PSI, and larger sizes up to 1,500 PSI. Higher pressure options are available upon request.
What temperature ranges are available?
Standard range is -20°F to 180°F (-29°C to 82°C), with options for arctic service down to -76°F (-60°C).