2.20.9.2
Sleeves in Partitions
Provide zinc-coated steel sheet having a nominal weight of not less than
4.40 kg per sq meter 0.90 pounds per square foot.
2.20.10
Escutcheon Plates
Provide one piece or split hinge type plates for piping passing through
floors, walls and ceilings, in both exposed and concealed areas. Provide
chromium plated metal plates where pipe passes through finished ceilings.
Provide other plates of steel or cast iron with aluminum paint finish.
Securely anchor plates in place.
2.20.11
Fire Department Inlet Connection
[Two] [Three] way type with 65 mm 2 1/2 inch National Standard female hose
threads with plug, chain, and identifying fire department connection
escutcheon plate. Provide inlet connections about one meter 3 feet above
grade.
2.20.12
Backflow Preventers
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NOTE: When the water supply for the AFFF system is
non-potable water delete this paragraph.
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Reduced pressure principle type. Proof shall be furnished that each make,
model/design, and size of backflow preventer being furnished for the
project is approved by and has a current "Certificate of Approval" from the
FCCCHR List. Listing of the particular make, model/design, and size in the
current FCCCHR List will be acceptable as the required proof.
2.21
BURIED PIPING SYSTEMS
2.21.1
Pipe and Fittings
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NOTE: For pipe sizes larger than 305 mm 12 inches,
method for pipe anchorage including pipe clamps and
the rods shall be shown on the drawings. Avoid
velocities greater than 4.57 meters per second 15
ft./sec.
**************************************************************************
**************************************************************************
NOTE: Select first bracketed phrase for connection
to an existing water distribution system located a
short distance from the building. Select second
bracketed phrase when a new water distribution line
is being provided as part of this project. For new
water distribution system, select Section 02510,
"Water Distribution," edit the appropriate guide
specification and include as part of the project
specification.
**************************************************************************
NFPA 24, outside coated cement lined ductile iron pipe and fittings for
piping under the building and to a point 1 1/2 meters 5 feet outside the
SECTION 13958N
Page 36
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