hi everyone.
i have a verticle pipeline (DN100,L=5000mm)with two end connection to the nozzle.
according to the PID of UOP, there is one expansion joint near one of the nozzle.

there is not any guide in the pipeline,is it correct?

in my opinion ,according to the EJMA, we should set the first guide in the 4*DN distance ,and the second in the 14*DN,and others...

can anyone tell me how to set the comfiguration?
does it need guide?
how to set guide restraint in the verticle guide?

It is depend ur piping system. Discuss With your Engineer.


And then read CAESAR Manual

Yes guide must be use. It works in this sequence, first guide than E.j than comes 3-way stop for vertical pipe.

1. A P&ID (Not PID) should not dictate that an Expansion Joint is required.

2. UOP is known for the development of proprietary processes for the process industry. They are also known for being very rigid in their requirement and opinions. They are not known for being Piping Designers or Pipe Stress Engineers. I would be weary of them making this kind of recommendation or requirement.

3. You (your company) need to evaluate how far apart these two nozzles are from each other. Look at what is the line size. Look at the temperature of the vessel in this area. Look at the temperature of the line during normal operation. Look at relocation one of the nozzles 90 degrees away from the other thus building in an "L" shaped offset that will provide flexibility and eliminate the expansion joint.

4. And consider if this line can or cannot be shut off (are there any valves) from the vessel. If there is no valve or valves in this piping that can isolate it from a temperature standpoint then the pipe and the vessel will possibly expand at the same rate and the "Joint" would not be required.

5. You must also consider that an expansion joint is always considered a weak point in any piping system. Whereas pipe in the form of a pipe loop is much stronger.