AS SeriesSpring-Return Pneumatic Valve Actuator
Next generation “compact” model provides a shorter and lighter canister for installations where space is a premium. SIL-3 Capable. Thrust up to 72,000 lbs.
Specifications
Specification Overview
| Thrust | up to 72,000 lbs |
|---|---|
| Bore size | 6”- 42” |
| Configuration | Single-Stage and Tandem |
| Stroke Range | Up to 24” |
| Pressure Rating | 150 psi |
| Rod Size | 1” to 5 1/2 “ |
| Welding Certified to | CSA 47.1 Division 2 |
| Fail Modes | Fail-Close or Fail-Open |
| Rating | SIL-3 Capable |
| Options | Compact Model Available |
Material Overview
| Material Breakdown | Standard | Corrosion Resistant |
|---|---|---|
| Head & Cap | A-36 hot rolled steel | 316 |
| Barrel (Air-Stage) | Composite | Composite |
| Piston 6-8″ | Aluminum | Aluminum |
| Piston 10″ & above | Mild Steel | Mild Steel |
| Piston Rod | 1045 | 316 |
| Gland | SAE 660 | Delrin |
| Canister | Steel | 316 |
| Spring | High Strength Steel | High Strength Steel |
| Tie Rod 6″-10″ | C12L14 | 316 |
| Tie Rod 12″ & above | ASTM A311B | 17-4 |
| High Temp | -10°C (14°F) ~ 200°C (392°F) |
|---|---|
| Standard Temp | -20°C (-4°F) ~ 104°C (219°F) |
| Low Temp | -54°C (-65°F) ~ 90°C (194°F) |
Highlights
The AS Series Spring-Return Pneumatic Valve Actuator’s SIL 3 capable rating is designed to provide reliable actuation solutions in critical applications without compromising the facilities Safety Instrumented Systems (SIS – compliant with IEC 61511/ISA 84).
- Choose from a full range of readily available dimensional sizes and thrusts
- Reduce design and developmental costs
- Faster, simpler selection process improves your project planning and turnaround on proposals, feasibility studies, etc.
- Springs are pre-compressed and factory-sealed inside a welded steel canister: no extended tie-rods required!
- Modular Canisters are easily and safely removed for simple in-field servicing of actuator piston seals
Design & Materials
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Flange Cover | Allows access to jam-nut to quickly and safely remove the canister for in-field service; Access for manual override available as an option
Spring | Available in thrust up to 72,000 lbs.; Ground Flat for stability
Self-Contained Spring Canister | Spring is pre-compressed and factory-sealed inside a welded steel canister: no extended tie-rods required; Allows safe in-field service of piston packings, rod seals and bushings
Barrel Seals | Nitrile O-ring standard; High or low temp optional
Wear-Band | BZ-PTFE for high temp version
Piston Packing | Nitrile U Cups are standard; High and low temp optional
Pedestal Mount | Carbon steel interface; Base plate is machined to suit valve requirement; Standard with dual adjustable stops; Optional accessories: Open and close limit switches; Lockouts; Travel stops
AS 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
Gland Seals
Triple-seal gland with dual wipers. Rugged metallic scraper and urethane double-acting wiper deflect contamination away from the rod seal for long service life.
Hydraulic manual override with indicator
Manual override options are available.
Screwjack with handwheel
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.
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
