| 摘要 |
1518066 Pipe couplings W SCHULZ 22 Feb 1977 [25 Feb 1976 22 Oct 1976] 07406/77 Heading F2G A pipe joint for use with concentric pipes and allowing transmission of conductive fluid flowing in the space 12 between the pipes comprises a pipe flange component 1 formed with a central aperture and radially outer apertures 2 together with a sealing gasket 7 shaped to provide sealing zones to surround both the central and each of the outer apertures; the flange and gasket being formed such that they define between them channels which extend between said zones and therefrom to the outer periphery of the joint to provide an escape path for leaking fluid. The gasket may include an annular hub portion 7a connected via radial webs to outer annular portions defining escape channels therebetween, and may be formed of a metal plate coated with a sealing material or alternatively may be formed entirely of a synthetic polymeric material.
|
