E2HR Series
Electro-Hydraulic Rotary Valve Actuator
Compact. Simple. Versatile. Delivering up to 300,000 in-lbs of torque with an energy efficient motor design.

The E2HR Series is an all-in-one design. No need for separate hydraulic power units and hoses.
The E2HR, Electro-hydraulic Rotary Actuator packs high performance into the smallest possible installation envelope for ¼ turn valve actuating applications. All hydraulic components and sensors are integrated into a single compact manifold block that also houses the actuator and integral oil reservoir.
The control panel can be mounted directly to the manifold block or installed remotely to run multiple units from a single control panel This self-contained actuator can be installed either vertically or horizontally and has no external piping.
Specifications At a Glance
Torque up to 300,000 in-lb
Hydraulic Manual Override
ESD Capable
-50C to +40C Operating Temp.
Rotation: 90° +/- 5°
Speed 20°/Sec
Valve Compatibility
Our Series E2HR Electro-hydraulic Rotary Valve Actuator is compatible with any process valve that requires rotary motion.
Learn More About: Valve Types
Features
Power Consumption
- Very low power consumption
- Tight Shutoff
- Power on Demand - Lock in Place
Safety Features
- Fail last lock
- Fail close
- Fail Open
Low Maintenance
- Simple Installation – complex hydraulic supply system not required
- Remote Diagnostics/Data logging
High Performance
- 100% Duty Cycle
- Variable speed motor allows for custom open & closing times
Interactive Icons
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Compact Design
All in one design. No need for separate hydraulic power units and hoses.
Easy To Use Display
The large, easy to use touch screen display makes it easy for quick setup and operation. The software provides logging of real-time valve performance analysis.
Rotary Valve Actuator
The rotary valve actuator offers up to 300,000 in-lbs of Torque.
Versatile Modes
The E2HR provides Fail Last, Fail Close, and Fail Open modes. It also has the ability to be mounted in horizontal and vertical positions.
The Panel Design

Main Panel: The E2HR control panel comes standard with touch screen* for quick setup and easy operation. The panel can be mounted remotely or on your E2HR.
In addition, you can operate your E2HR locally using the physical buttons on the front of the panel.

Status Screen: The E2HR status screen gives you a quick overview of your system status. Available from the touch screen* or via Wi-Fi.

Remote Screen: Operate your E2HR remotely using one of the communication protocols below.

Electro-Hydraulic Rotary Actuator Design

Compact: All in one design. No need for a separate hydraulic power unit and hoses.
Simple: Easy to use touch screen for quick setup and operation.
Data Logging: System records position and time data for valve performance analysis.
Partial Stroke Test: Initiate PST from touch screen or remotely.
Versatile: Can be mounted in horizontal valve stem applications.
Remote Diagnostics and Trouble-Shooting by Cowan*
(*direct VPN connection required)
Voltage
Standard | 240V Single Phase | 50/60Hz |
Optional | 115V Single Phase | 50/60Hz |
Optional | 575V 3 Phase | 50/60Hz |
Optional | 460V 3 Phase | 50/60Hz |
Environmental
Standard | Nema 4 | IP65 |
Optional | Nema 4X | IP67 |
Optional | Nema 7 |