Is it necessary to install a U-shaped bend in the steam pipe between two fixed points?
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This post was last edited by sunjl1981 on 2013-1-6 at 20:38. There is now a DN400 steam branch pipe at 200 degrees that comes from a main pipe of DN500; this branch needs to pass through a 30-meter-long truss. Since it connects to the main pipe, it’s not possible to establish two fixing points. Must a U-bend be installed between two fixing points? Can a U-bend be used if one end is fixed? # hcbbs
30M is not very far, right! Can a expansion joint be used to solve the problem? Additionally, if a π-shaped elbow is to be installed, a few meters of space should be sufficient; it will be stable as long as it can span across two sections of the pipe tray. This pivot crossing is necessary because the weld point is located between the two elbows, and both the elbows and the pipes on either side are subject to stresses resulting from thermal expansion and contraction. A bow-shaped steel member can be welded onto the two pipe tunnels, and a pivot can be welded at any position on this bow-shaped member!