I recall from almost 50 years ago it was in our old "Automatic Sprinkler Corp"
Design Manual. It was originally set up that way to eliminate "Trapeze" Hangers
but it usually cut down on the number of Branch Lines. The idea being that from
a labor point of view you were reducing the number of trips across the
building. As Hydraulic Calculations became more of a factor in our design,
sometimes we could save a pipe size in the lines by using more
lines...especially in a Grid. I don't think its written anywhere in the
standards that I recall.
John W. Farabee
561-707-5150
On Monday, November 8, 2021, 10:21:43 AM EST, Brian Harris via
Sprinklerforum <[email protected]> wrote:
I know it's common practice to run Mains parallel with the structure and
Branchlines perpendicular to it but is that written anywhere? I actually have
an architect that would like to see it in writing...
Brian Harris, CET
BVS Systems Inc.
Design Manager
bvssystemsinc.com<http://bvssystemsinc.com/>
Phone: 704.896.9989
Fax: 704.896.1935
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