AT SeriesPneumatic Modulating Control Valve Actuator
Pneumatic modulating control valve actuator with integral position transducer. Can be used as anti-surge valve actuator.
Specifications
Specification Overview<
| Vibration Resistance | up to 10Gs at 2000Hz |
|---|---|
| Resolution | Essentially Infinite |
| Air Supply | Instrumented quality air is recommended |
| Thrust | up to 425,000 lbs |
| Bore size | 4”- 42” |
| Pressure Rating | 150 psi |
| Configuration | Spring-Return or Double-Acting |
| Compatibility | Compatible with the most popular brands of Digital Positioners and communication protocols |
| Actuator Protection Class | IP67 |
| Stroke Range | Up to 144″ |
Material Overview
| Material Breakdown | Standard | Corrosion Resistant | AWWA |
|---|---|---|---|
| Head & Cap | Steel | SS 316 | Cad Plated |
| Barrel | Composite | Composite | Composite |
| Piston | Aluminum (4”-8”) & Steel (10” and above) | Steel | Cad Plated |
| Piston Rod | AISI 1045 | SS 316 | SS 316 |
| Gland | SAE 660 | Delrin | Delrin |
| Tie Rod 4” – 10” | AISI 1045 | SS 316 | SS 316 |
| Standard Temp | -20°C (-4°F) ~ 90°C (194°F) |
|---|---|
| Low Temp | -40°C (-40°F) ~ 90°C (194°F) |
Design & Materials
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Barrel |
High-strength composite standard; aluminum, steel or stainless steel optional
Gland Packing |
Polyurethane U-cup standard;low-temp optional
Prevents contamination inside the cylinder
Standard | Analog output compatible with most digital positioners
Transducer module |
- Easy-access for field maintenance and replacement
- Completely self-contained
- No need to disassemble cylinder or remove the valve assembly
Optional | Digital output for open and close indication
Series AT Applications
Industries trust us to provide state-of-the-art actuation and automation solutions in the following sectors.
Oil and Gas
Empowering oil and gas operations with advanced valve automation, ensuring efficient flow control for upstream and downstream applications.
Chemical Processing
Maximizing chemical processing efficiency with cutting-edge automation and precision control technologies.
Mining & Processing
Boosting mineral processing productivity with innovative automation and control systems.
Water Treatment
Streamlining water treatment processes with advanced valve automation, such as regulating flow rates for precise flow control.
Power Generation
Enhancing power generation reliability through state-of-the-art valve automation, ensuring seamless operation of turbine control valves for optimized energy output.
Manufacturing
Revolutionizing manufacturing efficiency with precise actuation automation by optimizing the operation of advanced operations from aviation testing systems to industrial milling process control.
Datasheets & Videos
Volume Booster
Volume boosters are recommended with larger modulating actuators for smooth operations. Typically required for 10″ bore and above. Booster can be installed either directly on the AT or in a remote panel.
GT3 Gland for Harsh Environments
Triple-seal gland with dual wipers. Rugged metallic scrapper and urethane double-acting wiper deflect contamination away from the rod seal for long service life.
Low Temp
Cast Iron construction for applications where yellow metals are not allowed
Mounting Kits: ISO, MSS & Customized Patterns Available
Cowan valve mounting kits can be designed for any linear valve. Mounting kits available in steel and stainless steel construction.
Maintains constant alignment between valve stem and cylinder piston-rod. Compatible with
rotary type switch boxes and beacons.
To limit stroke for position-seated or limited-travel applications. Ensures valve reaches positive
sealing every time without damage to valve internals
Remote Mount
Digital positioners mounted remotely in a cabinet are ideal for harsh environments and any application with difficult or limited access to the actuator. Cabinets available: NEMA 4/4X or explosion proof. Manual override push buttons are available. Customized to suit your application.
Direct Mount
No mechanical linkage requirement gives you the flexibility to mount directly on the actuator or the valve in any orientation.
Remote Mounts
- Digital positioners mounted remotely in a cabinet are ideal for harsh environments and any application with difficult or limited access to the actuator
- Cabinets available: Nema 4X or explosion-proof, manual override customized to suit your application.
Direct Mounts
- Direct Mounts
- Direct mount digital positioner
- NEMA 4X/IP66
- Fail/close or Open Upon Loss of Power
- Optional Fail Last Module
- Communication options:
- 4-20 mA
- HART
- Profibus PA
- Foundation Fieldbus
- Intrinsically safe version available
In Market Example
150 psi Pneumatic Valve Actuator with integrated position transducer. Fully enclosed feedback unit is protected from damage. No exposed transducer or linkage arms. Excellent for flotation systems
In Market Example
In Market Example
