I think 13 tells us in a round about way that 1/2" and 3/4" steel can only be
used as "Pilot Line" detector piping per Chapter 8 and Chapter 6. Look at Note
"B" in the allowed pipe size table in Chapter 6...it sends you to the pilot
line section in Chapter 8 and restricts those sizes to that use...at least
thats the way I read it.
John W. FarabeeCertified Lower Keys Plumbing and FireKey West Florida
561-707-5150
On Thursday, July 1, 2021, 11:32:02 AM EDT, Jennifer Cornett via
Sprinklerforum <[email protected]> wrote:
I have a customer with an existing system that the fire marshal wants brought
up to code. Some is simply adding/relocating heads, but some is that the
original installation company used 1/2" drops for the sprinkler heads. The fire
marshal wants all of them changed. The customer wants to know where in code it
says that 1/2" drops are not acceptable and why using a 1x1/2 reducer is. Thank
you!
Sincerely,
Jennifer Cornett, NICET SET
Sprinkler Sales
Firetrol Protection Systems, Inc.
1001 Ave. B
Lubbock, Texas 79401
Ph 806-771-3500
Cell 806-589-9630
Fax 806-771-3501
www.firetrol.net
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