Fastener preload retention is critical to ensuring overall long term joint integrity. The range of allowable gasket stress in conjunction with the acceptable bolt preloading can pose a challenge to engineers recommending proper assembly procedures. Users of PTFE based gasket materials are often encouraged to re-torque flange bolts within 24 hours of flange assembly in order to re-establish gasket stress and bolt load loss due to creep relaxation, however little is known regarding this behavior with elastomeric gaskets. This paper explores the characteristics of various elastomeric materials in raised face (non-confined) and tongue & groove (confined) flanges, benchmarked against graphite materials, and the impact that they have on sustained flanged connection reliability.
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ASME 2008 Pressure Vessels and Piping Conference
July 27–31, 2008
Chicago, Illinois, USA
Conference Sponsors:
- Pressure Vessels and Piping
ISBN:
978-0-7918-4825-8
PROCEEDINGS PAPER
A Practical Approach to Evaluating Fastener Preload Retention With Elastomeric Gaskets
Daniel F. Reid,
Daniel F. Reid
Virginia Sealing Products, Inc., Kingwood, TX
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James E. B. Frew,
James E. B. Frew
Virginia Sealing Products, Inc., Kingsport, TN
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Steve Benet
Steve Benet
Virginia Sealing Products, Inc., Kingwood, TX
Search for other works by this author on:
Daniel F. Reid
Virginia Sealing Products, Inc., Kingwood, TX
James E. B. Frew
Virginia Sealing Products, Inc., Kingsport, TN
Steve Benet
Virginia Sealing Products, Inc., Kingwood, TX
Paper No:
PVP2008-61583, pp. 189-199; 11 pages
Published Online:
July 24, 2009
Citation
Reid, DF, Frew, JEB, & Benet, S. "A Practical Approach to Evaluating Fastener Preload Retention With Elastomeric Gaskets." Proceedings of the ASME 2008 Pressure Vessels and Piping Conference. Volume 2: Computer Applications/Technology and Bolted Joints. Chicago, Illinois, USA. July 27–31, 2008. pp. 189-199. ASME. https://doi.org/10.1115/PVP2008-61583
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