Description

Emerson F89E‑004 Rack‑and‑Pinion Pneumatic Actuator

Technical Specifications

• Product Model: F89E‑004
• Brand: Emerson Keystone
• Warranty: One Year
• Actuator Type: Rack‑and‑pinion quarter‑turn pneumatic actuator
• Air Supply: 4‑8 bar instrument air
• Rotation: 90‑degree quarter‑turn valve operation
• Mounting Standard: ISO 5211 flange mounting
• Housing Material: Extruded aluminium alloy body, zinc‑nickel coated drive shaft
• Operating Temperature: ‑20 °C ~ +80 °C
• Storage Temperature: ‑40 °C ~ +85 °C
• Response Time: Fast quarter‑turn stroke time depending on air supply
• Protection Class: IP67 field‑mount actuator housing
• Function: Double‑acting or spring‑return quarter‑turn drive for ball‑valves and butterfly‑valves
• Shaft Interface: F89E‑type shaft profile for valve coupling
• Accessory Compatibility: Fits limit‑switch boxes, valve positioners and solenoid valves
• Diagnostics: External visual position‑indicator mark
• Humidity: 5‑100 % RH field‑environment
• Weight: 2.8 kg
• Dimensions: Compact quarter‑turn pneumatic‑actuator footprint
• 

Product Overview

F89E‑004 is Emerson Keystone F89‑series rack‑and‑pinion quarter‑turn pneumatic actuator. It provides 90‑degree rotary drive for ball‑valve and butterfly‑valve on‑off or modulating control in water‑treatment, oil‑gas and chemical‑process plants. Aluminium alloy body with corrosion‑resistant shaft coating delivers long service life under field conditions. Supports installation of limit‑switch boxes, solenoid valves and smart valve positioners. Surplus and refurbished tested spare pneumatic actuator for valve‑automation retrofit‑projectsEmerson.

Application Notes

‑ Use clean dry instrument air complying with ISO‑8573‑1. ‑ Adjust open‑close mechanical travel‑stops after valve coupling. ‑ Check O‑ring seal condition during periodic maintenance. ‑ Typical deployment: quarter‑turn‑valve pneumatic‑actuator spare‑part stocking.