Fisher™ 585C Piston Actuator | Double-Acting & Spring-Return | High Thrust up to 111 kN (25,000 lbf) for Linear Valves

The Fisher™ 585C Piston Actuator is a robust and versatile actuator designed to provide low to medium thrust for a variety of small to medium-sized Fisher sliding stem valves, including easy-e™, HP, EH, and 461 valves.

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Product Description

Product Overview

The Fisher™ 585C Piston Actuator is a robust and versatile actuator designed to provide low to medium thrust for a variety of small to medium-sized Fisher sliding stem valves, including easy-e™, HP, EH, and 461 valves.

Its double-acting design ensures solid and precise positioning, while the compact form factor offers an optional spring-return (fail-safe) mechanism for critical applications where valve position must be guaranteed upon air supply loss.

Key Features & Benefits

  • 🎯 High Thrust & Precise Control: Capable of generating up to 111 kN (25,000 lbf) of thrust, and even up to 137 kN (30,800 lbf) in special configurations, enabling it to overcome high valve unbalance forces. The double-acting structure, combined with instrument signals, ensures solid and precise positioning with fast response.

  • ⚙️ Flexible Stroke & Configuration: Offers standard strokes (up to 203 mm / 8 inches) and long-stroke versions (up to 610 mm / 24 inches) to meet diverse application needs. Sizes 25 and 50 come standard with top-mounted handwheels, while other sizes can accommodate side-mounted handwheels for manual operation.

  • 🛡️ Rugged & Reliable Design: The universal NAMUR mounting interface provides a consistent installation method and features vibration resistance per ISA-S75.13. Low-friction piston seals and cylinder coatings effectively reduce wear and extend service life.

  • 🔧 Spring-Return Option: Sizes 25 and 50 feature built-in bias springs. The springs can fully retract or extend the actuator stem upon air supply loss, providing a fail-safe mode, and can be easily reversed without additional parts.


Product Attributes & Specifications

Technical Specifications Table

 
 
AttributeSpecification
Product SeriesFisher™ 585C
Actuator TypeDouble-Acting, Spring-Return, Linear Piston
CertificationsPED, CUTR, ATEX
Control TypeOn/Off, Throttling (Modulating), Positioning
Max. ThrustUp to 111 kN (25,000 lbf)
Standard StrokeUp to 203 mm (8 inches)
Long Stroke OptionUp to 610 mm (24 inches)
Max. Supply Pressure150 psig
Power SourcePneumatic
Valve CompatibilityGlobe Valves, Angle Valves
Mounting StandardUniversal NAMUR

Model & Size Summary Table

 
 
Available SizesThrust & Stroke NotesSpring ReturnHandwheel
25, 50, 60, 68, 80, 100, 130Thrust and stroke vary by size. Larger cylinder sizes available for special applications.Sizes 25 and 50 standard with bias springs.Top-mounted for sizes 25 and 50; other sizes can accommodate side-mounted handwheels.

Please Note: This table summarizes common models and sizes in the series. For the most accurate and complete model data sheets, including detailed thrust and stroke charts, Please provide the product information you need to our sales team. We will contact you as soon as we receive your message.

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KateTeco (Tianjin) Technology Co., Ltd. serves as an outstanding partner in the field of industrial fluid automation, specializing in the introduction and integration of high-end valves and instruments. We are committed to providing customers with safe, reliable, and intelligent system solutions. By leveraging global leading product resources and supported by systematic professional training and on-site technical assistance from Emerson’s experienced engineers, we ensure that customers can respond promptly and accurately to technical challenges.

With full lifecycle services covering installation, commissioning, operation, maintenance, and replacement, we deliver a true one-stop service system. This allows our customers to enjoy seamless, efficient, and high-quality assurance, supporting enterprises in achieving stable operation and continuous upgrades.

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