| 摘要 |
PROBLEM TO BE SOLVED: To provide a sealing structure for split cases, having small fastening torque of a bolt in joining a flange and for preventing water from leaking in deforming of a fluid pipe or a case. SOLUTION: The sealing structure for split cases comprised a plurality of divided cases 1a, 1b for covering the periphery of the fluid pipe by connecting facing flanges 2, flange packings 3b, 3c for water-tightly connecting the flanges 2, and an arched packing for water-tightly providing the casings 1a, 1b on the fluid pipe 8. The facing flange packings 3b, 3c are brought in pressure- contact with each other to water-tightly connect the flanges 2. In at least one flange packing 3b, a projecting part 3h projecting toward the other flange packing 3c is formed on the plate-shaped base part.
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