| 摘要 |
<p>Seal (20) is formed in two halves (22A, 22B) mated along a transverse centerplane (502). Each half faces outward from an associated side of centerplane (502) and includes centrally aperture (100) metal body (22A, 22B). Each body has an outwardly projecting hub (24A, 24B) having an outward-facing engagement surface (25A, 25B). A web (26A, 26B) extends radially outward from the hub (24A, 24B) to a perimeter and has interior and exterior surfaces. Bodies (22A, 22B) are secured to each other by an annular weld (40) to form a seal body. A longitudinal separation between the engagement surfaces (25A, 25B) is compressible via flexing of webs (26A, 26B) from relaxed separation to a range of compressed separations. In the compressed separation, the surfaces are sealingly engaged to respective ones of the first (112) and second (108) conduits. On each side of seal there may be two polymeric sealing rings (44A, 44B, 45A, 45B) and an annular retainer (66A, 66B). Retainer cap portions (67A, 67B) having an inboard portion covering a portion of the outboard sealing ring (44A, 44B). At least one annular collar (78A, 78B) depends from cap (67A, 67B).</p> |
