as long as you calc includes the 5 ft eqv length of the BL tee (since
the sprinkler is not attached to the tee) and that for the flexhead
(about 10 ft), why not?
Roland
On Apr 5, 2011, at 10:23 AM, Tom Duross wrote:
OK, here's one to throw around.
Looked at a retrofit job last week.
It's about 15K SF of office area being cut up. The old overhead
grid system
is all done with 5' flexheads off 1/2" outlets with reducer
bushings. I
asked why they called me. They need to add more heads, can I do the
same as
what's there now? In some instances, there are 2 flexheads off a
single
1/2" outlet. Just for giggles, I ran some quick hydraulics using
the main
drain data, 125 S, 110 R. Seems like what's there will work (even the
doubles) mostly due to the 2" branchlines between the 4" crossmains.
Many
need to be moved, some added, some removed,.. Keep going?
TD
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