3.4.9
Escutcheons
Escutcheons shall be provided for pipe penetration of ceilings and walls.
Escutcheons shall be securely fastened to the pipe at surfaces through
which piping passes.
3.4.10
Inspector's Test Connection
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NOTE: Designer will indicate location of the
inspector's test connections and all associated
valves on the contract drawings, and will provide
details of drain piping, if drain piping is needed.
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Unless otherwise indicated, test connection shall consist of 25 mm 1 inch
pipe connected [to the remote branch line] [at the riser as a combination
test and drain valve]; a test valve located approximately 2 meters 7 feet
above the floor; a smooth bore brass outlet equivalent to the smallest
orifice sprinkler used in the system; and a painted metal identification
sign affixed to the valve with the words "Inspector's Test." The discharge
orifice shall be located outside the building wall directed so as not to
cause damage to adjacent construction or landscaping during full flow
discharge.
3.4.11
Drains
Main drain piping shall be provided to discharge [at a safe point outside
the building] [at the location indicated]. Auxiliary drains shall be
provided as required by NFPA 13.
3.4.12
Installation of Fire Department Connection
Connection shall be mounted [on the exterior wall approximately 900 mm 3
feet above finished grade] [adjacent to and on the sprinkler system side of
the backflow preventer]. The piping between the connection and the check
valve shall be provided with an automatic drip in accordance with NFPA 13
and arranged to drain to the outside.
3.4.13
Identification Signs
Signs shall be affixed to each control valve, inspector test valve, main
drain, auxiliary drain, test valve, and similar valves as appropriate or as
required by NFPA 13. Hydraulic design data nameplates shall be permanently
affixed to each sprinkler riser as specified in NFPA 13.
3.5
UNDERGROUND PIPING INSTALLATION
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NOTE: Restraint of the underground piping must be
detailed on the contract drawings.
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The fire protection water main shall be laid, and joints anchored, in
accordance with NFPA 24. Minimum depth of cover shall be [900] [_____] mm
[3] [_____] feet. The supply line shall terminate inside the building with
a flanged piece, the bottom of which shall be set not less than 150 mm 6
inches above the finished floor. A blind flange shall be installed
temporarily on top of the flanged piece to prevent the entrance of foreign
SECTION 13930A
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