30' x 20' = 600 sq ft600/ 130 = 4.6 round up 6 sprinkler heads
Run Branch lines perpendicular to what you are hanging from.5' off wall 10'
between heads for100 sq ft per sprinkler head or15' x 6'8" (3'4" off wall)
with smaller sq.ft. spacing you get less GPM per head in calcs.so if its
4" pipe for 1000 gpm is very restrictive
City of Redmond WA requires flow test,and we just did one. Here are our
resultsRemote hose @ 100 psi 260 gpm level 510'
lower on same standpipe 104 psi 290 gpm level 4@ 2 other Restricted
hose valves 110 psi 250 gpm15
What type/brand of PRV are you using?
Some manufactures have the listing below.
"..Pressure ReducingValve is listed as a floor control valve, an indicating
valve,and a check valve in automatic sprinkler systems as wellas a standpipe
valve for CLASS I and CLASS III systems."These valves are 2
rd plastic, Racks,
general storage?
This is just a starting point questions. Arch/Engineers, AHJ's are going to
need to provide details.
Charles Bamford SET
On Wednesday, May 31, 2017 11:34 AM, "Travis Mack, SET"
wrote:
This is obviously outside of our scope and
1. Is this a remodel job with an old ceiling (installed per???) or a New
ceiling/job?
2. Where's the project? who is the AJH? Southern California may have some
additional requirements.
Didn't the old brackets use to have a hole for 3/8" ATR?
On Monday, March 6, 2017 10:10 AM, Mike Hai
"Thoughts" ?
Carpet (minimum)Engineer of recordOwner's Information CertificateType of
storage ? rack length 15' of tube? bigger
create a solid shelf?chapter 22? NFPA 30
Chuck Bamford SET
On Tuesday, January 31, 2017 4:48 PM, James Crawford
wrote:
We are
looking at a client the store
u're design is 1400 -1800 gpm-- Use a 1250 gpm pump.
I would be concerned with a to big of pump sucking up "stuff" and going below
20 psi residual.
Charles Bamford SET
On Monday, January 30, 2017 1:28 PM, Steve Leyton
wrote:
And if an area closer to the water supply - i.e.
Paging Scott Mitchell..
On Friday, January 20, 2017 11:27 AM, "Hinson, Ryan"
wrote:
#yiv0109144994 #yiv0109144994 -- _filtered #yiv0109144994 {panose-1:2 4 5 3 5
4 6 3 2 4;} _filtered #yiv0109144994 {font-family:Calibri;panose-1:2 15 5 2 2 2
4 3 2 4;}#yiv0109144994 #yiv0109144
"What I have is the contractor ran about 50’ and a couple turns of DI above
ground between the BFP and where they switched to galvanized piping. It’s all
outside in a non-freezing climate, also earthquake country. It’s mostly flanged
connections and supported well with pipe stands. On the surfac
pingfire . com
has an web based graph that you can change GPM & PSI I use a snipping tool &
convert pdf
Charles Bamford
On Wednesday, December 7, 2016 6:30 AM, "wmens...@comcast.net"
wrote:
Does anyone have a blank 1.85 graph form you can send me?
Much appreci
Dry Uprights may work, if space is can be sprinklered with 48" or less.
Chuck Bamford SET
On Tuesday, November 8, 2016 8:33 AM, Steve Sorrell
wrote:
#yiv4679405160 #yiv4679405160 -- _filtered #yiv4679405160
{font-family:Calibri;panose-1:2 15 5 2 2 2 4 3 2 4;} _filtered #yiv4679405160
Acute Slopes, wood frame construction,Space the heads every 8' on Branch line
and go up to 15' Up the slopeNFPA 13 2013 edtion Fig 8.6.4.1.4
Are you trying to call it Ordinary hazard to get out of this spacing
requirements?
Attic heads space every 6', and after testing standard spacing 10' 12' o
H2O) and replace that area of Piping this is not an
exact science.
Charles Bamford SET
http://ultimatefiresprinklerguide.com/Guide/SearchListing?searchTerm=nitrogen+generator&PageNo=1&PageSize=10§ionType=Keywords&categoryId=0&headingId=&Region=&rbPhraseType=2&StateProvi
Here's some info on Spears CPVC, I don't where or if its in code book ,
but has to do with its Listing. Tees on Run and Coupling have an equivalent
foot.
Hydraulic DesignHydraulic calculations for the sizing of systems incorporating
Spears®FlameGuard® CPVC Fire Sprinkler Products must be c
City of Redmond WA
"A functional flow test shall be performed at your expense to prove the
standpipe design as required for normal system acceptance procedures found in
Chapter 9 of NFPA 14. I. REQUEST FOR TEST
The contractor shall request this test in writing at least 3 weeks in
advance...
Have you reached out to any of the Nitrogen selling companies?
maybe Wet Pipe Nitrogen Inerting (WPNI) ?could solve the problem.
On Wednesday, July 13, 2016 6:26 PM, AKS-Gmail-IMAP
wrote:
A suggestion:
The Frat house has a CO2 system fed from the domestic water that is intended
for
I've used BOR at transition from UG to aboveground pipe.(Easy to find on
Hydraulics and thus find for Calc Plate)
Calc Plate , use a Sharpie then go over with Engraver.
@ 1 Main Drain test Static PSI was OK, then when opened main drainthe PSI
dropped and we got a garden hose amount.The Cities ho
11.2k
Sounds like regular spacing 5.6k head maybe the choice.
Charles Bamford, SET
On Tuesday, June 28, 2016 3:05 AM, Lamar Vaughn
wrote:
Here is another way to approach this. You say you can protect the room with 7
standard coverage sprinklers and then calc a 923 sq.ft. area which wou
nfpa 13 2013 edition 23.4.4.3 4 sprinklers on 3 branchlines
On Monday, June 27, 2016 11:25 AM, "Reed A. Roisum, SET"
wrote:
Having trouble
finding where to determine how many sprinklers per line to include in a 12
sprinkler calc from FM Global. I’ve looked through FMDS 2-0, 3-0, an
Ceiling height needs to be the Highest point within Storage area(example I have
is 2/12 pitch roof)
25'6" will have a different psi starting PSIthan 24'6"just taking a quick
glance,using NFPA 13 2013 edtiontable 17.2.3.1 may get a starting point.
On Thursday, June 23, 2016 6:27 AM, Todd
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