131 & 141 Nuclear Qualified Differential Pressure Switch

Designed for the nuclear industry, the rugged SOR 131/141 nuclear differential pressure switches have excellent long-term stability and have proven themselves in the field after several years of service. These workhorse nuclear differential pressure switches can be modified to support your uprate requirements.

• 1E qualified
• Adjustable ranges from 5” wcd to 180 psid
• Long-term stability
• Negligible temperature effect
• HELB tested to 33Mrad
• Quick delivery

Applications

• MSL high-flow isolation
• ECCS pump bypass valve control
• HPCS bypass valve control
• RCIC high steam flow isolation
• Level monitoring and control

Compliant

• 10CFR50, Appendix B/10CFR21
• NQA-1-2015
• CSA B51 Part 1
• ANSI N45.2

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)
• Canadian Technical Standards & Safety Authority (TSSA) N285.0
• Tractebel Engineering SUEZ Certificate nr. 3696

Compliance and qualification depends on the individual instruments.