salt storage, and piers and wharves.
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Corrosion resistant sprinkler shall be [upright] [pendent] type installed
in locations as indicated. Corrosion resistant coatings shall be
factory-applied by the sprinkler manufacturer.
2.12
DISINFECTING MATERIALS
2.12.1
Liquid Chlorine
Liquid chlorine shall conform to AWWA B301.
2.12.2
Hypochlorites
Calcium hypochlorite and sodium hypochlorite shall conform to AWWA B300.
2.13
ACCESSORIES
2.13.1
Sprinkler Cabinet
Spare sprinklers shall be provided in accordance with NFPA 13 and shall be
packed in a suitable metal or plastic cabinet. Spare sprinklers shall be
representative of, and in proportion to, the number of each type and
temperature rating of the sprinklers installed. At least one wrench of
each type required shall be provided.
2.13.2
Pendent Sprinkler Escutcheon
Escutcheon shall be one-piece metallic type with a depth of less than 20 mm
3/4 inch and suitable for installation on pendent sprinklers. The
escutcheon shall have a factory finish that matches the pendent sprinkler
heads.
2.13.3
Pipe Escutcheon
Escutcheon shall be polished chromium-plated zinc alloy, or polished
chromium-plated copper alloy. Escutcheons shall be either one-piece or
split-pattern, held in place by internal spring tension or set screw.
2.13.4
Sprinkler Guard
Guard shall be a steel wire cage designed to encase the sprinkler and
protect it from mechanical damage. Guards shall be provided on sprinklers
located [_____] [as indicated].
2.13.5
Identification Sign
Valve identification sign shall be minimum 150 mm wide by 50 mm high 6
inches wide by 2 inches high with enamel baked finish on minimum 1.214 mm
18 gauge steel or 0.6 mm 0.024 inch aluminum with red letters on a white
background or white letters on red background. Wording of sign shall
include, but not be limited to "main drain," "auxiliary drain,"
"inspector's test," "alarm test," "alarm line," and similar wording as
required to identify operational components.
2.14
DOUBLE-CHECK VALVE BACKFLOW PREVENTION ASSEMBLY
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SECTION 13935A
Page 22
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