Critical Technical Advantages
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Exceptional Thrust Output: Capable of producing maximum thrusts up to 111 kN (25,000 lbf), the 585CR provides the mechanical force necessary to seat and throttle valves in high-pressure environments. This power is essential for maintaining tight shutoff and accurate control.
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Stiff Positioning via Double-Acting Design: By utilizing air pressure on both sides of the piston, the 585CR achieves a level of “stiffness” that spring-and-diaphragm actuators often cannot match. This minimizes the effect of fluid dynamic forces on the valve plug, leading to more stable process control.
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Modular Failsafe Options (Sizes 25 & 50): For applications requiring a mechanical return upon loss of air, smaller sizes of the 585CR can be equipped with bias springs. These springs can be configured to either fully retract or fully extend the stem, providing an extra layer of safety.
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Standardized NAMUR Mounting: The actuator utilizes universal NAMUR mounting, which ensures a standardized interface for instruments. This mounting style is compliant with ISA-S75.13, offering superior resistance to the mechanical vibrations often found in industrial piping.
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Low-Friction Technology: To ensure smooth movement and reduce “stiction,” the 585CR features specialized cylinder coatings and low-friction piston seals. This reduces wear on internal components and allows the actuator to respond to very small signal changes from the controller.
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Extended Stroke Capabilities: Depending on the specific size selected, the 585CR can accommodate strokes up to 203 mm (8 inches), making it compatible with a broad range of valve travels and globe valve architectures.
Technical Specifications and Capabilities
| Feature | Details |
| Actuator Type | Double-Acting Pneumatic Piston |
| Max Thrust | 111 kN (25,000 lbf) |
| Max Stroke | 203 mm (8 inches) |
| Mounting Logic | Universal NAMUR (ISA-S75.13) |
| Friction Control | Coated cylinders and low-friction seals |
| Manual Override | Top or side-mounted handwheels available |
Primary Applications
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Severe Service Throttling: Management of high-pressure steam and water loops in power generation.
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High-Pressure Gas Regulation: Precise control in oil and gas production where actuator stiffness is required to prevent instability.
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Chemical Process Control: Reliable automation for easy-e™ valves handling corrosive or volatile media.
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Remote Industrial Skids: Compact, high-thrust solution for automated valves on modular processing units.
