fire sprinkler return bend
fire sprinkler return bend
(OP)
1. nfpa 13 does not seem to say anything on the length a drop can be after the return bend
just wonder if any thoughts about that.
this is on a pre action system
any thing in the code about having to drain each drop after a trip??
any other thoughts about return bends???
just wonder if any thoughts about that.
this is on a pre action system
any thing in the code about having to drain each drop after a trip??
any other thoughts about return bends???





RE: fire sprinkler return bend
Must be installed in non-freeze environment.
Single sprinkler does not have to be drained.
RE: fire sprinkler return bend
This is just a constructive opinion.
RE: fire sprinkler return bend
Isn't the shape of the return bend supposed to function as air trap and thus keep the drop from filling with water in most cases?
I try to avoid using them wherever possible.
Alex Traw
Rainbow Fire Sprinklers
Albany, Oregon
RE: fire sprinkler return bend
RE: fire sprinkler return bend
spkreng, CET
RE: fire sprinkler return bend
Alex Traw
Rainbow Fire Sprinklers
Albany, Oregon