George,
If you are not familiar with Xpress copper fittings, let me tell you, they
are great!!! We did a church a couple of years ago using this method. One
leak!!!
No fire, flux, solder, etc= No Hot-work permits.
Sizes: 1/2"- 4"
They would be great for a retro-fit. The press-fit tool and ja
NFPA 13 (2010) 22.4.1.2
-Original Message-
From: sprinklerforum-boun...@firesprinkler.org
[mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of George Medina Jr
Sent: Thursday, October 20, 2011 9:49 AM
To: sprinklerforum@firesprinkler.org
Subject: 3/4" Copper Pipe in
22.4.1.2 Pipe sizes shall be no less than 1 in. (25 mm) nominal
for ferrous piping and 3⁄4 in. (20 mm) nominal for copper
tubing or nonmetallic piping listed for fire sprinkler service.
2010 EDITION
On 10/20/2011 9:49 AM, George Medina Jr wrote:
Forum,
I surveyed a high rise in Los Angeles for
Forum,
I surveyed a high rise in Los Angeles for a tenant improvement and the entire
system was done in Copper. I noticed the drops and end of lines were in 3/4"
copper. Is that allowed in NFPA-13? The system is not more than 25 years old.
If it is allowed, can somebody point me to the code se
