Engineered Solutions for the Nuclear Power Industry


SOR can custom engineer nuclear products for specific process applications, safety concerns or environmental demands to fit your requirements.

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Our engineering expertise is specifically targeted to meet the unique demands of the nuclear power generation industry and provide solutions for obsolescence issues and improve process efficiency. We call it custom engineering and today we build a variety of 1E-qualified mechanical pressure, vacuum, temperature and differential pressure switches to meet your specifications.

Current Plant Solutions

  • Management of Change (MOC): SOR provides products approved as form, fit and function.
  • On/off functions: SOR instruments are among the most reliable devices for redundant safeties, alarms and other applications.
  • Discontinued product/supplier issues: SOR has experience in custom engineering products for the nuclear power generation industry.
  • Diminishing manufacturing sources: SOR can fill the gap.

New Plant Designs

  • SOR has taken an application-specific approach to manufacturing for more than 30 years.
  • We have experience in working with nuclear plants on the engineering and manufacture of application-specific solutions to meet unique situations.

SOR Nuclear-Qualified* Instruments 


  • 10CFR50, Appendix B
  • ANSI N45.2
  • NQA-1 (including reporting)

Qualified by a combination of testing and analysis

  • IEEE-323-1974 & 1983
  • IEEE-344-1975 & 1987

Audited by

  • Nuclear Procurement Issues Committee (NUPIC)
  • Nuclear Industry Assessment Committee (NIAC)
  • Tractebel Engineering SUEZ Certificate nr. 3696

* Compliance and qualification depends on the individual instruments.

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  • Terminal block
  • Special ranges
  • Certifications
  • Custom engineered products for specific process applications, safety concerns or environmental demands. Consult the factory for details.