Bettis EHO Electro-Hydraulic Operator (Standard)
The Bettis Standard 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 Standard EHO provides a straight forward, simple, reliable ESD actuator solution.
The Bettis RPE-Series Pneumatic Rack and Pinion Valve Actuator is a compact, high-performance rotary actuator designed to provide precise, reliable quarter-turn motion for a wide range of industrial valve applications. Developed by Emerson, the RPE-Series offers a powerful, efficient, and cost-effective solution for on/off and modulating control of ball, butterfly, and plug valves across various process industries. The RPE-Series utilizes a rack and pinion mechanism, converting pneumatic energy into smooth rotary motion with high torque output and consistent performance throughout the stroke. This design ensures accurate valve positioning, minimal hysteresis, and long operating life, even under high-cycle or harsh process conditions. Available in both double-acting and spring-return (fail-safe) configurations, the RPE-Series provides flexible control options for systems requiring fail-open or fail-close operation during air supply loss. The actuator’s extruded aluminum body is treated with a hard anodized finish for superior corrosion resistance, while its stainless steel fasteners and sealing system ensure dependable operation in demanding environments. With ISO 5211 and NAMUR mounting interfaces, the Bettis RPE-Series is easy to install, integrates seamlessly with limit switches and positioners, and is suitable for manual override or remote control configurations.
Technical Specification of Bettis EHO Electro-Hydraulic Operator (Standard)
- Power Source
- Electro-Hydraulic
- Product Type
- Electro-Hydraulic Actuator
- Actuation
- Quarter-turn
- Certifications
- FM, ATEX, IECEx, PESO, CCOE, CSA, SIL 2
- 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
- 3,000 psi (207 Bar)
Feature of Bettis EHO Electro-Hydraulic Operator (Standard)
- 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