QRS sprinklers shall not be installed in high temperature
connections where the local fire department has a
areas (e.g., high temperature areas defined in NFPA 13 or
program and the hardware to accommodate locking fire
elevator machine rooms, etc.) in a building. Standard
department caps.
response sprinklers shall be installed of the appropriate
temperature rating.
Automatic Sprinkler Systems
for Remote/Isolated Facilities
All automatic sprinklers installed less than 2134 mm (7
feet) above the floor shall be equipped with sprinkler
General. The requirements below apply to facilities
guards to provide protection against accidental damage.
located in remote/isolated areas having insufficient or
nonexistent water supply sources for the design and
Sprinkler Piping System
installation of a fire sprinkler system in accordance with
General. Sprinkler piping, fittings, control valves, check
the requirements in the NFPA 13. These facilities must
valves, and drain assemblies shall meet the requirements
also meet the criteria set forth below to determine when it
in NFPA 13.
is not economically feasible to install automatic fire
sprinkler protection in accordance with NFPA 13.
Special Requirements. The following requirements take
1. The cost associated with the installation of the interior
precedence over the requirements in NFPA 13:
NFPA 13 fire sprinkler system (includes all costs such
Black steel piping and/or copper tubing shall be used for
as labor, materials, the adequate water supply source,
all wet-pipe sprinkler piping. Chlorinated polyvinyl chloride
pumps, etc.) has a cost exceeding .00 per square
(CPVC) sprinkler piping shall not be installed in any new
foot; and
construction or renovation project, unless specifically
2. The costs associated with connecting the interior NFPA 13
approved for installation by the GSA regional fire
fire sprinkler system to the adequate water supply source
protection engineer.
(includes all costs such as labor, materials, the adequate
Galvanized (internal and external) sprinkler piping shall
water supply source, pumps, etc.) is greater than 50
be used for all dry-pipe sprinkler systems.
percent of the cost for the installation of the interior NFPA
Steel pipe sizes 51 mm (2 inches) and smaller shall be
13 fire sprinkler system.
Schedule 40 and shall be threaded.
If the preceding conditions exist, the sprinkler system
Steel pipe sizes larger than 51 mm (2 inches) shall be
shall be designed in accordance with the requirements
minimum Schedule 10. Piping less than Schedule 40 shall
in NFPA 13D.
be roll grooved.
Special Requirements. The following requirements take
Threadable lightwall pipe shall not be used.
precedence over the requirements in NFPA 13D:
Steel piping having a corrosion resistant ratio less than
1 shall not be used.
The water supply source for the sprinkler system shall
be a minimum of 1,000 gallons and shall be capable
Plain-end fittings shall not be used.
of meeting system demands for at least 30 minutes.
Fire Department Connections. Underwriters
Antifreeze sprinkler systems shall not be permitted.
Laboratories Inc (UL) listed locking fire department
connection caps shall be installed on all fire department
225
FIRE
PROTECTION
&
LIFE
SAFETY
7.11
Water Based Fire Extinguishing Systems
Revised March 2005 PBS-P100
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