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WET -PIPE SPRINKLER SYSTEMS Section 15360 15-1207 soffits shall be of manufactures standards as selected by the architect. C. Spare Sprinkler Heads: Furnish spare sprinkler heads placed in an emergency cabinet. For each cabinet provide one sprinkler wrench. The cabinet will be of No. 20 gauge pressure steel with red lacquer finish complete with manufacturer standard labeling. The spare heads shall be representative of, and in proportion to, the number of each type and temperature of heads installed. Locate cabinet where shown on plans or as directed by owner. 2.02 PIPE AND FITTINGS A. Pipe fittings for installation below ground shall be cement lined, cast iron conforming to the requirements of American Water Works Association Standard Specification for cast iron special castings, Class D, 150 Ib., AWWA C151 mechanical or push -on joint; with AWWA C104 cement -mortar lining, "Blue Brut" or PVC pressure pipe AMA C900, UL approved for fire line service. If PVC premastering pipe is used with mechanical joint fittings, install according to manufacturer's requirements and recommendations. B. Fire sprinkler piping, from base of riser to 5-0" outside building (Below ground): C. Pipe: Acceptable piping materials are Class 50 cement -lined ductile iron with a working pressure of 250 psi per NFPA 24. All piping shall be listed for fire protection service. D. Fittings: Fittings shall be rated to a minimum of 250 psi and meet applicable requirements of ANSI/AWWA and NFPA 24. E. All materials shall comply with NFPA / ANSI & AWWA F. The flange and spigot piece at the base of the riser shall be secured to the underground elbow at the base of the riser with two %" stainless steel tie rods for 6" riser (for underground supply piping). G. Pipe for installation above ground shall conform to ASTM A 795, A 53, or A135. Thin wall pipe with grooved fittings and couplings may be used for pipe 2" and larger. Piping for sizes 1'/2' and smaller shall be Schedule 40 pipe with welded, grooved or screwed fittings. No thin wall pipe shall be used in conjunction with screwed fittings. H. Gate valves shall be approved rising stem type (OS&Y). All shut off valves shall be equipped with tamper switches. I. All exposed valves shall be chained to prevent accidental shutting of the valves. J. Fire sprinkler riser shall comply with all applicable codes. Supports, Anchors, Bracing — See All Sections 21 05 29 and 21 05 48. K. Piping Penetration Auxiliaries: Conform to NFPA 13 and the following: 3