| 摘要 |
A method for providing a mechanical seal assembly involves the steps of providing first and second flanges 10 and providing a metallic seal element 40 having first 36 and second 38 faces. Each flange 10 is machined in order to produce a metallic seal surface to which annular seal surfaces on each of the faces 36, 38 of the metallic seal element 40 are complimentary for engagement. This creates a metal to metal seal between the flanges 10 and the metallic seal element 40, with the seal element 40 located between the two flanges 10 which are then secured together with bolts extending through the flange connection faces. The machining of the flanges comprises removing material from an upstand 22 in the flange 10, and leaves the metallic seal surface extending at an angle to the central axis of the flange, and a shoulder extending between the metallic seal surface an internal wall of the fluid bore of the flange. |
