American Fire Sprinkler Association [http://www.firesprinkler.org/]
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AFSA Technical Update
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A newsletter dealing with codes and other technical issues
January 31, 2014
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Hydrostatic Tests of Fire Hydrants
"Is it the intent of section 10.10.2.2.1 on acceptance testing to require dry
fire
hydrant barrels installed on a private fire service main to be hydrostatically
tested?"
We have reviewed NFPA 13, 2013 edition that you indicated as the applicable
standard.
Our informal interpretation is that the fire hydrants do not need to be charged
during the underground pipe hydrostatic test.
Section 10.10.2.2.1 indicates that all piping and attached appurtenances
subjected
to system working pressure shall be hydrostatically tested at 200 psi or 50 psi
in excess of the system working pressure, whichever is greater, and shall
maintain
that pressure +/-5 psi for 2 hours. This does not mean the fire hydrants are
opened
and subject the dry barrel to the hydrostatic test. The wording in this section
says, "attached appurtenances subjected to system working pressure". The lead-in
pipe, box valve, and pipe up to the seat/drain at the base of the fire hydrant
are subjected to the working pressure and that is the portion that is
hydrostatically
tested. This was confirmed with a committee member on NFPA 24. A fire hydrant
can
be equated to a standpipe valve or drain valve. The devices are not opened and
capped
off and subjected to a hydrostatic test. Thus it is not required to open and
hydrostatically
test the dry barrel hydrant.
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firesprinkler.org
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Hosted by the American Fire Sprinkler Association
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Technical Update is prepared by the Technical Services Dept. of the AFSA: Vice
President
of Engineering and Technical Services Roland Huggins, a PE registered in fire
protection
engineering; Phill Brown, a NICET IV certified automatic sprinkler technician
and
NFPA Certified Fire Protection Specialist (CFPS) and Tom Wellen, a PE registered
in fire protection engineering. This is provided with the understanding that
the
AFSA assumes no liability for this opinion or actions taken on it and they are
not
to be considered the official position of the NFPA or its technical committees.
Copyright 2012, American Fire Sprinkler Association.
All Rights Reserved
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PDF Link
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"Liabilities & Pitfalls of Contract Clauses with Regard to Inspection, Testing,
& Maintenance of Sprinkler Systems"
by
Terry Victor
&
Joe Canterbury
Monday, February 3, 2014
11:00a.m. - 12:30 p.m. Central.
Free to AFSA members!
This 1.5-hour webinar will be presented FREE to all AFSA members.
Register Button
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to view upcoming training.
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Training Calendar
AFSA Beginning
Fire Sprinkler System
Planning School
SOLD OUT! for
Mar 30 - Apr 11, 2014
Register for
July 14 - 25, 2014
Check our calendar to view upcoming training.
For details and/or to register, visit the AFSA Calendar
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