2.19.6
Identification Signs
Attach properly lettered approved metal signs conforming to NFPA 13 to each
valve and alarm device. Permanently affix design data nameplates to the
riser of each system.
2.19.7
Main Drains
Provide drain piping to discharge at safe points outside each building or
to sight cones attached to drains of adequate size to readily receive the
full flow from each drain under maximum pressure. Provide auxiliary drains
as required by NFPA 11 and NFPA 13.
2.19.8
Pipe Sleeves
Provide where piping passes through walls, floors, roofs, and partitions.
Secure sleeves in proper position and location during construction. Provide
sleeves of sufficient length to pass through entire thickness of walls,
floors, roofs, and partitions. Provide not less than 6.50 mm 1/4 inch
space between exterior of piping and interior of sleeve. Firmly pack space
with insulation and calk at both ends of the sleeve with plastic waterproof
cement.
2.19.8.1
Sleeves in Masonry and Concrete Walls, Floors, Roofs
ASTM A 53, schedule 40 or standard weight, zinc-coated steel pipe sleeves.
Extend sleeves in floor slabs 80 mm 3 inches above the finished floor.
2.19.8.2
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.
2.19.9
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.
2.19.10
Fire Department Inlet Connections
[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.
2.19.11
Backflow Preventers
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NOTE: When the water supply for the AFFF system is
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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
SECTION 13957N
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