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Weather Seal Design for Pipe Flanges

[+] Author Affiliations
Tsutomu Kikuchi

Idemitsu Kousan Company, Ltd., Japan

Ryoji Ogiso

Chiyoda Advanced Solutions Company, Ltd., Japan

Paper No. PVP2006-ICPVT-11-93195, pp. 233-238; 6 pages
  • ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference
  • Volume 7: Operations, Applications, and Components
  • Vancouver, BC, Canada, July 23–27, 2006
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 0-7918-4758-6 | eISBN: 0-7918-3782-3
  • Copyright © 2006 by ASME


A weather seal is constructed in order to prevent the risk of high temperature flanges leaking during rain, for example, due to a temperature difference between the flanges and their bolts. From the point of view of saving energy, an adequate scal is essential to reduce the amount of heat that dissipates from the flange. However, the better the seal makes the greater the bolt temperature increase, and hence, the higher the risk of leakage. Thus there is a great demand for an optimal seal design.

Copyright © 2006 by ASME
Topics: Flanges , Design , Pipes



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