A SeriesDouble-Acting Pneumatic Valve Actuator
Designed and engineered for severe-service applications.
Specifications
Specification Overview
| Thrust | up to 425,000 lbs |
|---|---|
| SIL Rating | SIL 3 Capable (IEC 61508) |
| Bore Size | 4″ – 42″ |
| Rod Size | 1″ – 5 1/2″ |
| Configuration | Single-Stage and Tandem |
| Stroke Range | Up to 144″ |
| Pressure Rating | 150 psi |
| Sealing | GT3 Triple Seal Gland for Severe Service Applications |
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 |
| Tie Rod 12” & Above | AISI 1045 | SS 17 – 4 PH | SS 17 – 4 PH |
| High Temp | -10°C (14°F) to 200°C (392°F) |
|---|---|
| Standard Temp | -20°C (-4°F) to 104°C (219°F) |
| Low Temp | -54°C (-65°F) to 90°C (194°F) |
Highlights
The A Series bore sizes range from 4” to a whopping 42” diameter
We offer a wide range of automation options.
Design & Materials
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Piston Packing | Nitrile U-Cup standard for long service life; High and Low Temp optional
High-Strength Composite Barrel | Light-weight, low-friction and corrosion-resistant.
Flange Mounting Hole | ISO/MSS Flange mounting holes See Actuator Dimensions Page for details
Cartridge Bushing | Allows for quick and easy rod seal replacement without disassembling the actuator
Rod Wiper | To prevent contamination inside the cylinder for long seal life. High or low temp optional
Gland Packing | Nitrile U-cup standard; High or low temp optional
A Series 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
Control Panels
Complete design, fabrication and testing of control panels for hazardous and special applications.
Screwjack with handwheel
Manual Override options are available.
Hydraulic manual override with indicator
Limit Switches
Mechanical Limit Switch SPDT, for Open & Close Indication. Inductive switches also available. Solid State, Reed and inductive type also available. Specify brand and part number
Automation Packages
Solenoid Valves
Pilot Valves
Quick Exhausts
Positioners
Limit switches and position sensors
Field-Adjustable for open and close indication Analog and digital feedback
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.
