E2H90 SeriesOn/Off Rotary Actuator
The E2H90 Electro-Hydraulic Rotary Actuator is designed & engineered for ON/OFF applications.
Specifications
| Voltages | 200-240 Vac/1 Phase/3 Phase, 380-480 Vac/3 Phase, 500-690 Vac/3 Phase & Custom |
|---|---|
| Service | Isolation, on/off |
| Design | Double or single acting |
| Fail system | Hydraulic Accumulators or Springs |
| Driven by | Accumulators, sized to 2 strokes |
| Control panel | Integral or remote |
| Ambient temperature | (-40 to +70 C) |
| Protection | IP65/IP68 |
| Classification for hazardous areas | Explosion-proof rating: Ex d IIB/IIC T4 |
| Communication | Digital (standard) Feedback by HART, Profinet ,Profibus (options) |
| HMI | Local, remote and ESD function can be configured, Open and close indication, Program partial stroke test (PST) |
| Service | Duty cycle S5 (15 min continuous service) |
| Power consumption | Only when recharging accumulators |
| Movement Lock | Complete after each operation |
| Manual override | Manual hydraulic pump |
| Speed | Speed control for Open and Close |
| Mounting | Horizontal or vertical (ISO, MSS, Custom) |
| Safety Integrity level | SIL 2 (HFT)=0 ; SIL 3 (HFT>=1) |
| Ambient temperature | (-40 to +70 C) |
|---|
Design & Materials
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Accumulator
Integrated Hydraulic Control System
Filter
Power and Drive Modules |
- Quarter turn stroke: -5° to 95° adjustable
- The cylinder features dual seals to guarantee zero leakage
- Symmetric and canted yokes are available to satisfy various valve torque profiles
Explosion Proof Electronic Control Panel
E2H90 Applications
The E2H90 Series has a myriad of applications.
Oil and Gas
Enhancing oil and gas processes with E2H90 Series Electro-hydraulic Actuator, ensuring precise flow regulation for optimal performance and reliability.
Chemical Processing
Optimizing chemical processing with the E2H90 Series Electro-hydraulic Actuator, enabling precise adjustment of flow for enhanced product quality and efficiency.
Mining
Improving mining and mineral processing efficiency with the E2H90 Series Electro-hydraulic Actuator, facilitating precise control over slurry flow rates for optimized extraction and resource utilization.
Power Generation
Maximizing power generation efficiency with the E2H90 Series Electro-hydraulic Actuator, enabling precise adjustment of steam flow for optimal turbine performance and energy output.
Water Treatment
Maximizing power generation efficiency with the E2H90 Series Electro-hydraulic Actuator, enabling precise adjustment of steam flow for optimal turbine performance and energy output.
Manufacturing
Boosting manufacturing productivity with E2H90 Series Electro-hydraulic Actuators, facilitating precise control over material flow for optimized production processes and quality outputs.
Datasheets & Videos
Download Our E2H90 Series Brochure
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Why Use it?
Cowan E2H90 Series Self-Contained Electro-Hydraulic Rotary Valve Actuators are used for industrial process valves where highly reliable, controlled and Emergency Shut-down are required. They are used to automate rotary type valves such as: ball and butterfly valves.
For valve automation applications that require emergency shutoff valve automation, we recommend the E2H-ESD.
Independent and Adjustable Open/Close Time
The system flow rate is designed to be 20L/min. For example, the measure ESD time of a size 09 electro-hydraulic actuator is less than three seconds.
By independently setting an open/close adjustment valve in the hydraulic control system, the length of time to operate the valve by the actuator can be strictly controlled.
For example it can close or open the valve in a natural gas pipeline quickly (less than 10s) to block it, or slowly close (more than 120s) the valve to avoid the water hammer effect in a production oil pipeline.
Comparison Table
E2H-ESD
E2H90
Actuator mechanical Design
Scotch Yoke
Scotch Yoke
Failure system
Spring return, fully sealed in a compact canister. Welding’s Certified to CSA 47.1 Division 2. Option for hydraulic return on preloads higher than 306,000 lbs.-in
Hydraulic accumulators system designed to 2 strokes. Option for spring is available
Fail Function
Fail on Loss of power & ESD Signal
Fail on Loss of ESD Signal
Operational ambient temperature rating
(-50C TO 40C)
(-40C TO 70C)
Control Panel
Standard: Installed on the unit wired and tested Option: Remote
Standard: Installed on the unit wired and tested Option: Remote
Interface
Standard-Power/Overload/Open/Closed & PST light indicators. Open/Close/push buttons Option: HMI-Multi Color Touch Screen (only available with the smart PCL option)
Standard LCD Screen, circuit printed board. Navigation buttons, Open/Close buttons. Local, Remote selector
Communication
Standard: Discrete. Open/close/ESD/PST Option: Smart PCL, 4-20ma control, 4-20 ma c/w HART, PROFIBUS,PROFINET.
Standard: Discrete. Open/close/ESD/PST
Environmental Protection
NEMA 4X, IP66
IP67
Hazardous Area classification and certifications
CSA or uL or cUL CI1,Div1&2,Gr C&D OR AATEX, II 2G EEx d IIB
Ex d IIC T6
Power Supply Voltage
120VAC/60Hz/Single phase. Options available
220VAC/50Hz/Single phase. Options available
Manual Override
Standard: Manual Hydraulic pump
Standard: Manual Hydraulic pump
Partial Stroke
Comes standard, set at a set position. Standard 20% open. Speed adjustable
Comes standard, set at a set position. Standard 20% open
Fail safe time
Fast- Less than 15 secs for all models. Adjustable and padlock able
Standard : Fixed. Not adjustable. Option: Adjustable, not lockable
Stroke operation
Directly driven by the hydraulic pump. No down time, recharge not needed
Driven by the pressurized fluid in the accumulators. Accumulators sized to 2 strokes, after this accumulators must recharge
Recharge time
Not required. Unit is always available to stroke the valve
Between 15 to 30 mins depending on the model
Modular Design
Yes, Controls and hydraulics can be provided remotely mounted as a standard design if required
No
Hydraulic Design
All Hydraulic components and sensors are integrated into a compact manifold block. The complete hydraulic system is Fully enclose and pad-lockable
All hydraulic valves are included in a enclosed cabinet, interconnection between components is all done with stainless steel tubbing and fittings.
Mechanical travel stops
Mechanical travel stops +/- 5% and local position indicator
Mechanical travel stops +/- 5% and local position indicator
SIL Certification
SIL 3 (Pending)
SIL 2 (HFT)=0 ; SIL 3 (HFT>=1)
Lifting lugs
Yes
Yes
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