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Actually, your explanation wasn't far off your "be the water" surfing that
makes the student remember you need to slow down at 90's because e of friction
loss.
You got complaints on that Casper Milquetoast explanation?
I wasn't offended, for the record.
George L. Church, Jr., CET
Rowe Sprink
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I believe there is a requirement for check valves at each connection.
Garth
- Original Message -
From: "Ronl.Fletcher"
To:
Sent: Wednesday, October 26, 2011 1:13 PM
Subject: Dual floor control assembies
Is anyone aware of a prohibition against having two floor control
assemblies
There would have to be or a single flow would set off all WFSs since it would
act as a big vertical grid.
Believe the dual connection is Marriott standard on high-rises, much to my
chagrin.
Posting a sign at both sides that it's dual feed is something my insurance
carrier would make me post- w
ve.
Tacoma, WA 98405
rgreen...@bates.ctc.edu
http://www.bates.ctc.edu/fireprotection/
253.680.7346
253.576.9700 (cell)
Member:
ASEE, SFPE, ASCET, NFPA, AFSA, NFSA, AFAA, NIBS, WSAFM, WFC
They are happy men whose natures sort with their vocations. -Francis Bacon,
essayist, philosopher, and statesman (156
To clarify my remark yesterday about, "not being good practice", I forgot to
add in the rest of the comment. I meant to say that dual feeding the floor and
NOT looping them together is in my opinion not good practice. Especially if the
floor is accessible from both directions from each stairwell
In the 2007/2010 edition of NFPA 13, section 8.3.4.3 allows k 4.2 sprinkler
heads to be used on dry systems where the piping is corrosion resistant or
internally galvanized.
Are there any options that people are aware of for corrosion resistance besides
internally galvanized? (Copper being too
You mean feeding half the floor off east standpipe, half off west, and in
middle you can pull wrong head and flood?
Versus knowing you need to drop both sides pressure to work on it?
George L. Church, Jr., CET
Rowe Sprinkler Systems, Inc.
PO Box 407, Middleburg, PA 17842
877-324-ROWE 57
We have local ahjs that require dual feed for all most all systems however; you
can only use the most remote feed in the calculations. NFPA 13 requires the
signage.
John August Denhardt, P.E., FSFPE
Strickland Fire Protection Incorporated
5113 Berwyn Road
College Park, Maryland 20740
Office Tel
No, nitrogen would not meet this requirement in my opinion.
John August Denhardt, P.E., FSFPE
Strickland Fire Protection Incorporated
5113 Berwyn Road
College Park, Maryland 20740
Office Telephone Number: 301-474-1136
Mobile Telephone Number: 301-343-1457
FIRE SPRINKLERS SAVE LIVES - Can you liv
You can take Mr. Denhardt's words as a very authoritative statement. His
fellow NFPA 13 Committee Members have nicknamed him "Nitro-man". So if it
deals with Nitrogen, he speaks with much force (and often).
It should be recognized that the above is my opinion as a member of the NFPA,
and h
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