Specifications - Lord and Son Construction, Inc.

2.5.3 Corrosion Resistant Sprinkler
Corrosion resistant sprinkler shall be upright or pendent type installed in
locations as indicated. Corrosion resistant coatings shall be factoryapplied
by the sprinkler manufacturer.
2.6 DISINFECTING MATERIALS
2.6.1 Liquid Chlorine
Liquid chlorine shall conform to AWWA B301.
2.6.2 Hypochlorites
Calcium hypochlorite and sodium hypochlorite shall conform to AWWA B300.
2.7 ACCESSORIES
2.7.1 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.
2.7.2 Pendent Sprinkler Escutcheon
Escutcheon shall be one-piece metallic type with a depth of less than 3/4
inch and suitable for installation on pendent sprinklers. The escutcheon
shall have a factory finish that matches the pendent sprinkler heads.
2.7.3 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.
2.7.4 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.
2.8 DOUBLE-CHECK VALVE BACKFLOW PREVENTION ASSEMBLY
Double-check backflow prevention assembly is existing to remain .
PART 3
EXECUTION
3.1 EXAMINATION
After becoming familiar with all details of the work, verify all dimensions
in the field, and advise the Contracting Officer of any discrepancy before
performing the work.
Section 21 13 17.00 10 Page 10