| 摘要 |
A flange seal (10) for forming a sealed connection between a first flange (12) and a second flange (14) connected by a plurality of flange bolts (22). The flange seal (10) comprises a first portion (26) and a second portion (28). The first and second portions (26, 28) are locatable between the first and second flanges (12,14) such that a chamber (44) is defined between the first and second portions (26,28). The supply of hydraulic fluid to the chamber (44) via a hydraulic input (48) causes the first and second portions (26,28) to move away from each other such that the first and second flanges (12,14) engage against ends of the flange bolts (22) and outer surfaces (32,33) of the first and second portions (26,28) engage against end surfaces (32,33) of the respective flanges (12,14) to create a seal between the flanges (12,14).
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