Methods for evaluating the leak tightness of spent fuel container closures

Technical Report · Thu Jan 31 23:00:00 EST 1980

DOI:https://doi.org/10.2172/5650022· OSTI ID:5650022

Benda, B J; Langland, R T

Quarter- and half-scale configurations of five different seal-flange hardware configurations were built, including: polymer O-rings, silver-coated hollow-metal O-rings, Conoseals, Grayloc seals, and Batzer seals. Using helium as a tracer gas, leak-rate tests were conducted under conditions simulating normal use of spent fuel containers. Leak rates were then correlated with such measured and calculated parameters as temperature, bolt load, seal-flange interface stress, and the differential pressure across the seal. Computer codes were developed, and analyses of the seal-flange configuration related bolt closure force to both seal-flange interface contact stress and surface area.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USNRC; USDOE
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5650022
• Report Number(s): NUREG/CR--1312; UCRL--52738
• Country of Publication: United States
• Language: English

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