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.

Electro-Hydraulic Linear Valve Actuator
Electro-Hydraulic Linear Valve Actuator Logo

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.

knife gate valve actuator

Butterfly Valve

gate valve actuator

Plug Valve

Segmented Ball Valve

Trunion Ball Valve


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

Roll Over the icons to learn more


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

Electro-Hydraulic Linear Valve Actuator Panel

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.

Electro-Hydraulic Linear Valve Actuator 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.

Electro-Hydraulic Linear Valve Actuator Panel

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

Electro-Hydraulic Actuator Available Panel Communication Logos
*Touch Screen not available for low temperature applications

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)



240V Single Phase



115V Single Phase



575V 3 Phase



460V 3 Phase




Nema 4



Nema 4X



Nema 7