| 摘要 |
A sealing device having a quick-release cover is disclosed for use on ports of pressure vessels, pipe-line access ports and man-ways. In particular, the sealing device may be used to retro-fit a blind flange. The sealing device has a generally circular flange that has a base and a raised neck. The base comprises a plurality of spaced apart apertures with each aperture for receiving an attachment element, such as a bolt or threaded element. The raised neck may be generally cylindrical. The sealing device further comprises a generally cylindrical hub that extends from the raised neck of the generally cylindrical flange. The sealing device has a quick-release cover for sealing a first end of the generally cylindrical hub. The base comprises a base surface substantially perpendicular to a longitudinal axis of said raised neck. |
