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Caselli Member Posts: 40
separation on a project I just put together.
I know I had seen this specification somewhere.
Most of what I worked from was from this site or other published info from Siegenthaler, B & G, etc. I have a big binder of saved columns.

This particular job will use a steam heat exchanger to supply hot water for coils for space heating in ducts.

Interesting now to see the other side... that it is not something you need to worry about.


  • JoeP
    JoeP Member Posts: 4
    Primary/Secondary question

    Is there a minimum distance to have between the tees of 2 different secondary loops? If they are within 6" will this create any flow problems?
  • DanHolohan
    DanHolohan Member, Moderator, Administrator Posts: 16,490

    problem at all.
    Retired and loving it.
  • DanHolohan
    DanHolohan Member, Moderator, Administrator Posts: 16,490
    The circuits

    really are hydraulically disconnected and that's why it doesn't matter how close they are. There's one place where it's a consideration, though, and that's on a crossover bridge (within a two-pipe pri-sec system) where the secondary flow exceeds the primary flow.
    Retired and loving it.
  • Caselli
    Caselli Member Posts: 40

    Thank you Dan. If there is a space problem maintaining the separation, I know we won't have to try.
This discussion has been closed.