Boiler Header stress calculation problem

The header in the boiler always has more than10 tubes connected to it at one point,but now the autopipe just can create one node at one node.So how to creat more than10 tubes at one node?Or how to calculate the Panel stress for the boiler.

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  • Hi Mike:
        Thanks for your patient answer.
          One question for the Autopipe ananysis。 Now there is a safety valve set on  the piping, so how to do the stress analysis  for the counter-force,it is a transient power, hope for your answer. Thanks.
    Regards, 
    Bob

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  • Hi Mike:
        Thanks for your patient answer.
          One question for the Autopipe ananysis。 Now there is a safety valve set on  the piping, so how to do the stress analysis  for the counter-force,it is a transient power, hope for your answer. Thanks.
    Regards, 
    Bob

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