Bettis EHO Electro-Hydraulic Operator (Smart)
The Bettis Smart Electro-Hydraulic Operator(EHO) is a self-contained electro-hydraulic actuator designed to actuate quarter-turn valves. It is designed to provide fail-safe actuation for Emergency Shut Down(ESD) valves. The Bettis Smart EHO has advanced diagnostic capability and can be connected to DCMlink for remote monitoring.
The Bettis™ EHO Electro-Hydraulic Operator (Smart), developed by Emerson, is an advanced self-contained electro-hydraulic actuator designed to deliver precise, fail-safe control of quarter-turn and linear valves in both onshore and offshore applications. The system combines electric motor technology with hydraulic actuation power, providing the efficiency of electric operation and the strength and reliability of hydraulic performance—all in a single, compact unit. Built for critical flow control and emergency shutdown (ESD) systems, the Bettis Smart EHO ensures fast, accurate, and fail-safe valve operation, even during power loss or system faults. The actuator’s integrated smart controller continuously monitors performance parameters such as position, pressure, temperature, and diagnostics, enabling predictive maintenance and real-time system feedback through digital communication protocols. Its modular, corrosion-resistant design and low power consumption make it ideal for remote locations, unmanned platforms, and off-grid installations where pneumatic or hydraulic power sources are unavailable. The Bettis EHO is engineered to deliver safety, reliability, and intelligence in a single package—setting new standards for modern valve automation systems.
Technical Specification of Bettis EHO Electro-Hydraulic Operator (Smart)
- Power Source
- Electro-Hydraulic
- Product Type
- Electro-Hydraulic Actuator
- Actuation
- Spring-return
- Certifications
- FM, ATEX, IECEx, PESO, CCOE, CSA, SIL 3
- Control Type
- On/off, ESD
- Valve Type
- Ball, Butterfly, Plug, Triple Offset
- Operating Temperature
- Standard -20°F to +140°F (-29°C to +60°C). Optional temperature -40°F to +140°F (-40°C to +60°C).
- Torque/Thrust
- 1,264 to 707,696 in-lbs
- Operating Pressure
- up to 3,000 psi
Feature of Bettis EHO Electro-Hydraulic Operator (Smart)
- Utilizes a dependable spring-return actuator for the fail-safe stroke combined with an integral hydraulic power pack and electronic control module
- Designed as an emergency shutdown actuation solution to stop process flow upon the detection of a command signal or loss of power, protecting personnel, equipment, and the environment
- Consistently operates in challenging environments, hostile environments, and when power is challenged
- Over fifteen alerts and alarms to help alert users of abnormalities in the system
- Can be integrated into systems with existing common communication protocols and DCMLink
- Communication Protocols- HART and FOUNDATION Fieldbus, DCMlink configuration and monitoring software compatibility
- Environmental Protection: Control enclosure: IP68, Hydraulic actuator: IP67M, Motor: IP68