standards are specified to simplify inspection and
acceptance in the field.
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Clean the various system components before final closing as the
installations are completed. Remove foreign matter from equipment and
surrounding areas. [Cleaning and cleanliness shall conform to paragraph
entitled "Cleaning and Cleanliness Requirements" for pressures over 1724
kPa (gage) 250 psig.] Preliminary or final tests will not be permitted
until the cleaning is approved by the Contracting Officer.
3.1.14
Pipe Sleeves
Provide pipe sleeves where pipes and tubing pass through masonry or
concrete walls, floors, roofs, and partitions. Hold sleeves securely in
proper position and location before and during construction. All sleeves
shall be of sufficient length to pass through entire thickness of walls,
partitions, or slabs. Extend sleeves in floor slabs 50 mm 2 inches above
the finished floor. Pack space between the pipe or tubing and the sleeve
firmly with oakum and caulk both ends of the sleeve with elastic cement.
3.1.15
Floor, Wall, and Ceiling Plates
Provide chromium-plated steel or nickel-plated cast iron plates on pipes
passing through floors and partitions of finished rooms. Provide painted
cast-iron, malleable iron, or steel for other areas.
3.1.16
Flashing for Buildings
Provide flashing [as required] [in accordance with Section 07600 FLASHING
AND SHEET METAL] where pipes pass through building roofs and outside walls.
3.1.17
Unions and Flanges
Provide unions and flanges where necessary to permit easy disconnection of
piping and apparatus, and as indicated. Provide a union for each
connection having a screwed-end valve. [Provide unions or flanges not
farther apart than 30 meters 100 feet.] [Provide unions or flanges as
indicated.] Provide unions on piping under 50 mm 2 inches in diameter, and
provide flanges on piping 50 mm 2 inches and over in diameter. Install
dielectric unions or flanges between ferrous and non-ferrous piping,
equipment, and fittings; except that bronze valves and fittings may be used
without dielectric couplings for ferrous-to-ferrous or non-ferrous to
non-ferrous connections.
3.1.18
Painting of Piping and Equipment
Paint piping and equipment in accordance with Section 09900 PAINTS AND
COATINGS.
3.1.19
Identification of Piping
Identify piping in accordance with PFI ES 22. Use commercially
manufactured piping identification labels. Space identification marking on
runs not farther apart than 15 meters 50 feet. Provide two copies of the
piping identification code framed under glass and install where directed.
SECTION 15212N
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