Secondary sealing of a fuel tank

摘要

A seal assembly for a fuel tank having a tank opening therein includes an access cover adapted to close the tank opening. The seal assembly also includes a first seal made of a compressible material adapted to be disposed between the access cover and a tank surface of the fuel tank. The seal assembly includes a second seal made of a non-permeating material adapted to be disposed between the access cover and the tank surface. The seal assembly further includes an attachment plate for attachment to the tank surface and adapted to be disposed about the tank opening. The seal assembly includes at least one attachment fastener cooperating with the attachment plate to secure the access cover to the attachment plate and to seal the tank opening via the first seal and the second seal.