| 摘要 |
Two steel pipes (6, 8) are each connected to a mounting flange (26, 42) for joining the two pipes, the flanges (26, 42) in one embodiment being fixed stationary to each other and in a second embodiment fixed movable relative to each other. A compressed knitted wire mesh seal (10) is between the two flanges in a dynamic embodiment. Each flange (26, 42) has a spherical inner concave or outer convex surface (46, 38) and the seal (10) has an inner concave and outer convex spherical surface (24, 18). The seal outer convex spherical surface (18) has a radius smaller than the mating flange concave inner surface (46). The origins of the two radii are offset. The seal inner concave spherical surface (24) has a radius that is larger than the mating spherical outer convex surface (38) of the corresponding flange (26). The seal (10) contacts the two flanges (26, 42) in an annular set of pressure points to provide enhanced sealing action.
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