| 摘要 |
PURPOSE:To avert the application of a bending moment onto a branched pipe by heat and cut production cost by forming a manifold body by fitting connecting a plurality of manifolds having the branched pipe. CONSTITUTION:A top edge manifold 2 having branched pipes 2B, 3B, and 4B, intermediate manifold 3, and a basic edge manifold 4 are connected airtightly, keeping a gasket 5 interposed, by forming the connecting edge parts 2C, 3C, and 4C of each manifold in free fitting-connection. Thus, a manifold body 1 is prepared. Therefore, even if the manifold is expanded or contracted by heat, said extension and contraction can be absorbed by the fitting-connection part, and the branched pipe is prevented from being applied with a bending moment.
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