High-temperature pneumatic actuators are engineered with precision and modularity to meet the demanding requirements of various industrial applications. With a focus on cost-efficiency, compact design, and reliable performance, these actuators are an excellent choice for controlling the operation of
control valves in both on/off and throttling applications. This article outlines the key features and benefits of these advanced actuators, emphasizing their versatility and efficiency in high-temperature and high-pressure environments.

The high-temperature pneumatic actuators are a result of engineering excellence and precision manufacturing, offering a modular product line that delivers significant size reductions without compromising on performance. The modular nature of these actuators provides flexibility, as all accessories can be directly mounted to the actuator. This integration not only reduces installation time and complexity but also lowers costs compared to traditional actuators that require additional external linkages.
With the focus on efficiency, the actuator system is designed to optimize both operational performance and cost-effectiveness. The compact design ensures that these actuators can be easily integrated into a variety of applications where space is limited, while maintaining high-performance standards.
These pneumatic actuators are available in two distinct types: double-acting and spring return.
Designed for 90°, 135°, and 180° rotation.
Provide precise and reliable control for applications where continuous actuation is required.
Suitable for both on/off and throttling control applications.
Operate with a maximum pneumatic pressure of 140 psig (10 Bar).
Primarily designed for 90° rotation.
Use spring force to return the valve to its default position in case of air pressure loss.
Ideal for fail-safe operations where the valve must automatically return to a safe state.
Also capable of handling on/off and throttling duties.
Both actuator types are designed for operation in temperatures ranging from -4°F to 200°F (-20°C to 93°C), which makes them suitable for a wide range of industrial environments. For extreme temperature applications, users can consult the manufacturer for units that are optimized for higher or lower temperature ranges.
One of the standout features of these pneumatic actuators is their fully enclosed, self-contained design. This innovative structure minimizes the need for maintenance and facilitates safe, straightforward disassembly and reassembly when required. The actuator’s design helps reduce downtime, making it ideal for industries that rely on minimal maintenance and high uptime.
Additionally, the actuators are equipped with two independently adjustable travel stop screws. These screws allow for precise bidirectional movement adjustments in both the open and closed positions. The inclusion of a cam on the output shaft permits fine-tuning of the actuator’s motion, offering movement limits from +5° to -5° to ensure precise control for quarter-turn valves.
These actuators are built for durability and reliability in tough industrial environments. The standard units feature anodized aluminum bodies with polyester-coated end caps, which provide excellent corrosion resistance and protect the actuator from wear and tear. For applications in corrosive environments, special coatings and materials are available upon request to ensure the actuators maintain their high performance and longevity.
Furthermore, the actuators are NAMUR accessory compatible, meaning that they can be easily integrated with a wide range of valve accessories and control systems. This compatibility ensures that the actuators can be customized to suit specific needs, offering increased flexibility in various industrial settings.
The high-temperature pneumatic actuators are designed to comply with ISO 5211 dimensions, allowing them to be mounted directly onto valves without the need for external linkages. This direct mounting eliminates the potential for misalignment between the actuator and valve, reducing the risk of contamination buildup. Moreover, field installation is made simpler, as the actuators can be mounted with minimal effort, further streamlining the setup process.
The integration of the actuator with the valve is optimized for performance, ensuring that there is no need for complex alignment adjustments, and that the system operates smoothly and efficiently from the start.
High-temperature pneumatic actuators are highly versatile and can be used in a broad range of industries, including:
For controlling the operation of valves in pipelines, refineries, and offshore platforms where high temperatures and pressures are common.
In environments where aggressive chemicals and extreme temperatures demand reliable, fail-safe operation.
For controlling steam and water valves in power plants, where temperature and pressure conditions can vary significantly.
In systems that require precise flow control under varying pressure conditions and fluctuating temperatures.
For applications that require consistent valve actuation with minimal maintenance and downtime.
The high-temperature pneumatic actuators offer a range of features that provide significant benefits in industrial valve applications. From their modular design and direct mounting capabilities to their precision control and durability, these actuators are designed to optimize performance while minimizing maintenance and installation costs. Their ability to handle high-pressure, high-temperature environments makes them suitable for a diverse range of industries, ensuring reliable valve control in both on/off and throttling applications.
For those requiring actuators that can perform in challenging conditions, these high-temperature pneumatic actuators provide a cost-effective, flexible, and long-lasting solution. By offering customizable features, compatibility with a wide range of accessories, and simple installation, they represent an excellent choice for modern industrial control systems.