Emergency shutdown valve actuator
Zero Emission ESD Valve Actuator System for API Midstream Pipeline Distribution Networks that require an automatic fail-safe position where power is not available.
Learn MoreZero Emissions, Zero Energy required
Hydraulic fail-safe system with accumulator
Zero Emissions, Zero Energy required
For fail-safe systems (ESD & PSD), when power is not available
Secondary accumulator for leakage compensation ensures drift-free performance for weeks at a time.
Spring-Return pneumatic valve actuator
Next generation AS Series “compact” model provides a shorter and lighter canister for installations where space is a premium.
Learn MoreThrust: up to 72,000 lbs
Type: Fail-Close or Fail-Open
Models: Standard & Compact
Bore Size: 6″-42″
Pressure Rating: 150 psi
Configuration: Single-Stage and Tandem
Stroke Range: Up to 12″
Welding Certified to CSA 47.1 Division 2
Offered for on/off and control valve applications.
See our range of Rotary Hydraulic and Pneumatic Valve Actuators.
Thrusts up to 125,000 lbs
Stroke: up to 36″
SIL-3 Capable (pending)
ESD Capable
100% Duty Cycle
Very Low Power Consumption – Lock in Place
Tight Shutoff
On/Off or Modulating Service
Fail Last Lock, Fail Close or Fail Open
Features:
Air driven, double acting pressure amplifiers
No mechanical or electrical power required
4:1, 3:1 and 2:1 intensification ratios
Compact, lightweight, corrosion resistant construction
High air flow output 100 cu in per stroke
Ideal to fill large air tanks where plant line pressure is low
Quiet operation
We offer a wide range of valve automation control options including control panels, PLC panels and fail-safe systems.
Pneumatic Manifold
Out of the box valve automation solution for fail-safe, speed control, and safety pressure relief requirements. Compatible with linear and 1/4 turn valve actuators.
Buy onlineSizes: Available in 0.5" , 1", & 1.5" NPT
Fail-safe: Easily configure your actuator for fail-close, fail-open, or fail-last lock (requires air tank for fail-close or fail-open).
Speed Control: Independent control of opening and closing speeds.
Versatile:Modular Manifold is suitable for a wide variety of applications and mounting configurations.
Torque: up to 72,000 lbs
Rotation: 90° +/- 5°
Speed: 20°/Sec
Operating Temp.: -50C to +40C
ESD Capable
SIL-3 Capable (pending)
The E2HR Rotary Electro-Hydraulic Actuator packs high performance into the smallest possible installation envelope for ¼ turn valve actuating applications.
See our range of Hydraulic and Pneumatic Valve Actuators.
quotes@cowandynamics.com
Actuation Solutions and Systems for the World’s Most Challenging Environments
For over 60 years Cowan Dynamics continues leading the way with our innovative valve automation solutions. Our SIL-3 Capable products are used globally in harsh environments and are chosen for their safety features, product performance and reliability.
We provide valve manufacturers and end-users with solutions focused on delivering a full array of reliable actuator products and services, on-time and to spec, regardless of your project scope, size or complexity.
Our ISO 9001-registered Manufacturing, R&D and Testing Facility enable us to ensure our clients that every actuator and system they receive will perform to specification.
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How Can We Help Automate Your Valves?
Check out our innovative valve actuator lineup. Need help selecting a valve actuator for your industrial process application? Use our web chat option!
Linear Valve Actuators
Standard and severe service electro-hydraulic, pneumatic, & hydraulic valve actuators. Offered for on/off and control valve applications.
Rotary Valve Actuators
Standard and severe service electro-hydraulic, hydraulic, & pneumatic valve actuators. Offered for on/off and control valve applications.
Valve Automation Solutions
Specialized design, engineering and assembly of control systems for severe service process valve applications.
Valve Actuator Solutions
Pneumatic Actuators
Our line of pneumatic actuators are available in both linear and rotary actuators.
- Spring-Return Pneumatic Valve Actuator (AS Series)
- Thrust up to: 72,000 lbs
- Double-Acting Pneumatic Valve Actuator (A Series)
- Thrust up to: 425,000 lbs
- Pneumatic Rotary Actuator (CSY Series)
- Torque up to: 2,500,000 in-lb
- Pneumatic Modulating Valve Actuator (AT Series)
- PSI up to: 150 PSI
- Valve Automation Solutions
- Fail-safe Systems & Control Accessories
Hydraulic Actuators
Our line of hydraulic actuators are available in both linear and rotary actuators.
- Double-Acting Hydraulic Valve Actuator (ML Series)
- Thrust up to: 1,500,000 lbs
- Spring-Return Hydraulic Valve Actuator (MS Series)
- Preloads up to: 72,000 lbs
- Pressure Rating up to: 3,000 PSI
- Hydraulic Valve Actuator (C6A Series)
- Nominal Pressure: 3000 psi / 5000 psi
- Closing Time: ≤ 5s
Electro-hydraulic Actuators
Our line of electro-hydraulic actuators are available in both linear and rotary actuators.
- Electro-hydraulic Actuator – Linear (E2H Series)
- Thrust up to: 125,000 lbs
- Electro-hydraulic Actuator – Rotary (E2HR Series)
- Torque up to: 300,000 inch-lbs