Leakage from gaskets and seals is a major concern in the process industry. In this work we investigate an ultrasonic means of determining the degree of contact between a pipe flange and compressed gasket. This is related to the leakage rate through the gasket. A simple pressure vessel with a flange and gasket assembly has been constructed. Ultrasonic transducers were mounted on the flange. Reflected pulses and leakage rates were monitored simultaneously for a range of gasket contact pressures and internal pressures. The reflected ultrasonic wave can be used to determine the stiffness of the gasket-flange interface. Interface stiffness was found to correlate closely with the applied gasket clamping load. In this way the ultrasonic signal could be correlated with leakage rate.
- Tribology Division
Measurements of Contact and Leakage in a Pipe Flange Gasket
Dwyer-Joyce, RS, Osborne, P, & Beck, SBM. "Measurements of Contact and Leakage in a Pipe Flange Gasket." Proceedings of the STLE/ASME 2006 International Joint Tribology Conference. Part A: Tribomaterials; Lubricants and Additives; Elastohydrodynamic Lubrication; Hydrodynamic Lubrication and Fluid Film Bearings; Rolling Element Bearings; Engine Tribology; Machine Components Tribology; Contact Mechanics. San Antonio, Texas, USA. October 23–25, 2006. pp. 661-663. ASME. https://doi.org/10.1115/IJTC2006-12358
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