Fisher 7790B Spring Return Pneumatic Actuator | 7790B-SSS

$850.00

Fisher 7790B-SSS spring return pneumatic actuator with stainless steel construction. Designed for reliable valve automation in process control applications.

The Fisher 7790B-SSS is a high-performance spring return pneumatic actuator engineered for demanding process control applications. This unit combines robust construction with precise control capabilities, making it ideal for automated valve positioning in chemical processing, oil and gas, and other industrial environments.

Built with stainless steel components for superior corrosion resistance, the 7790B-SSS actuator delivers reliable operation in harsh conditions. The spring return mechanism ensures fail-safe operation by automatically returning the valve to its predetermined position upon loss of air supply, providing critical safety functionality for process systems.

This actuator features Fisher’s proven design principles, offering excellent repeatability and long service life. The compact design allows for easy installation and maintenance while providing the torque output required for most quarter-turn valve applications. Compatible with Fisher’s complete line of valve accessories and positioners for enhanced control precision.

Key Features

  • Stainless steel construction for corrosion resistance
  • Spring return mechanism for fail-safe operation
  • Compact design for easy installation
  • High torque output for quarter-turn valve applications
  • Compatible with Fisher positioners and accessories
  • Proven reliability for critical process control

Specifications

Specification Value
Type Spring Return Pneumatic Actuator
Construction Stainless Steel
Operating Medium Compressed Air
Operating Pressure Range 3-15 PSI (approximately)
Temperature Range -40°F to 200°F (approximately)
Action Spring Return
Connection Standard pneumatic fittings
Mounting Standard ISO mounting pattern
Weight Verify with manufacturer

Part Number Breakdown

7790B-SSS Breakdown:
7790B = Base actuator model series
SSS = Stainless Steel construction designation

Condition

New

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Brand

Fisher

MPN

7790B-SSS

Condition

New

Series

7790B