Emerson Fisher 3582 Electro Pneumatic Single-Acting Valve Positioner for Industrial Control Valves

Product Overview

The Fisher 3582 pneumatic valve positioner is a reliable, modular device that mounts directly on Fisher or other manufacturers’ diaphragm actuators. It provides accurate valve positioning by modulating actuator pressure in response to a pneumatic control signal. The series supports easy field upgrades to electro-pneumatic operation via the 582i converter and offers nuclear-qualified versions (3582NS).

Key Features

• Simple mounting with four sets of actuator holes and adjustable travel pin
• Quick cam position change and range spring replacement without special tools
• Vent and diagnostic connections for easy maintenance and troubleshooting
• Housing designed for weatherproofing when mounted with vent on side or bottom
• Full compliance with hazardous area classifications (ATEX, etc.)

Technical Specifications

Applications

Suitable for new installations or retrofits on sliding-stem control valves in chemical processing, refining, power plants, and nuclear facilities. Perfect for applications requiring frequent calibration or easy field maintenance.

Frequently Asked Questions

Q: How do I mount the positioner on a non-Fisher actuator?

A: Use pipe spacers cut to the “X" dimension shown in Figure 3 of the manual.

Q: What should I do before installing a 582i converter?

A: Confirm the mounting plate has a five-hole pattern and the existing input range is 0.2–1.0 bar (3–15 psig).

Q: Is sealing tape allowed on pneumatic connections?

A: No. Use thread sealant paste only to avoid obstructing small passages.

Contact Us

Phone/WeChat/WhatsApp: +8613916209596

Email: svetama@gbsxj.com

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• Fisher 582i Electro-Pneumatic Converter
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• Fisher 3582i Electro-Pneumatic Positioner