Let our ESD solution help avoid loss in profitability and ensure safety at all times
The Bettis™ EHO Electro-Hydraulic Operator is a self-contained, quarter-turn, valve actuator that combines proven technologies from Emerson’s Valve Automation. The actuator has been designed for critical shutdown applications where reliability is crucial. The EHO utilizes a dependable spring-return actuator for the fail-safe stroke combined with an integral hydraulic power pack and electronic control module
Reliability is crucial to safety. The Bettis EHO is designed to be your emergency shutdown actuation solution to stop process flow upon the detection of a command signal or loss of power, protecting your people, equipment, and the environment.
The Bettis EHO is a complete package fit for the toughest conditions and ESD applications with built in preventative and reactive measures. If an emergency does occur, rest assured that your Bettis EHO will reliably manage your ESD valves.
Safety: Certification to worldwide hazardous zone safety standards
Ease of use: Field-proven hydraulic hand pump local control and display panel with clear indication of valve position
Easy Installation: Self-contained and designed for compactness and is readily adaptable to new or existing valves
Convenience: Fewer worries in challenging environments, versatility regarding power options, and reliability directed in hostile environments with strict ESD requirements
Prevention: The Smart EHO has over fifteen alerts and alarms to help alert users of abnormalities in the system
Modulating: The Smart EHO can modulate your ESD valves and keep the system running efficiently
Communication: The Smart EHO can be integrated into systems with existing common communication protocols and DCMlink
Features & Benefits
Spring power, utility power or solar power
Reliability is maximized by utilizing a spring-return actuator to stroke the valve after power failure or during an emergency event
Solar panels are available for areas without electrical power.
Proven technology for critical applications
Over 200 years of combined experience go into the Bettis EHO Electro-Hydraulic Operator. The solution unites veteran components: Bettis actuator, Bettis/EIM electric components and motor, and Shafer hydraulic control technology.
With the dual-sealed Separate Terminal Chamber (STC), installation wiring can be terminated and fuses can be replaced without exposing the internal control components to hostile environmental conditions
Designed for your modulation requirements(Smart EHO)
≤1% guaranteed accuracy when the valve needs to be precisely positioned. 4-20mA analog input and output to provide both precise control and instantaneous feedback
Configurable to integrate into your existing communication system
Precise hall-effect position encoder; provides consistent and accurate position feedback with no loss of calibration during power failure
Fast-closing speed or precise speed control is obtained through field-adjustable flow control valves to meet application requirements
Specifications
Quarter Turn Torque Output:
Spring Return: 1,264 to 707,696 in-lbs
Double Acting: Up to 2,379,683 in-lbs
Operating Temperature:
-20°F to 140°F (-29°C to 60°C) ; -40°F to 140°F (-40°C to 60°C) (optional)
*contact factory for operating temperature outside these ranges*
Input Power:
Multiple AC and 24V DC available
Certifications:
CSA - Class I, Division I, Groups B (optional), C and D
FM - Class I, Division I, Groups B (optional), C and D
ATEX - EExd IIB T4
IECEx -Ex d IIB T4
Limit Switches
2 SPDT (standard), 4 SPDT (optional)
Environmental Protection:
Control enclosure: IP68
Hydraulic Actuator: IP67M
Motor: IP68
Reservoir: IP54 (IP66 option)
Local monitoring:
Local physical position indicator, Sight level gauge, Hydraulic pressure gauge
Standard EHO vs Smart EHO
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