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' B. Gate Valves-2-1/2 Inch and Larger: iron body;bronze mounted, 175 pound cold water working pressure -non- <br /> shock. Valves shall have solid taper wedge; outside screw and yoke, rising stem; flanged bonnet, with body and <br /> bonnet conforming to ASTM A 126 Class B;replaceable bronze wedge facing rings; flanged ends; and a packing <br /> ' assembly consisting of a cast iron gland flange,brass gland,packing,bonnet, and bronze bonnet bushing. Valves <br /> shall be capable of being repacked under pressure,with valve wide open. <br /> C. Swing Check Valves: MSS SP-71;Class 175,cast iron body and bolted cap conforming to ASTM A 126,Class B; <br /> horizontal swing, with a bronze disc or cast iron disc with bronze disc ring, and flanged ends. Valve shall be <br /> capable of being refitted while the valve remains in the line. <br /> ' 2.06 AUTOMATIC SPRINKLERS <br /> A. Sprinkler Heads: glass bulb type, and style as indicated or required by the application. Provide quick response <br /> heads where required bycode. <br /> B. Sprinkler Head Finishes: Provide heads with the following finishes,coordinate with Architect and Owner: <br /> ' 1. Upright,Pendant,and Sidewall Styles: chrome plated in finish spaces, exposed to view;rough bronze finish <br /> for heads in unfinished spaces and not exposed to view. Heads shall be teflon or PVC-coated where installed <br /> exposed to excessive moisture, acids, chemicals, or other corrosive fumes. Heads shall be equipped with <br /> guards where exposed in Gyms and other similar areas. <br /> ' 2. Concealed Style: rough brass,with painted,off-white cover plate. <br /> 3. Flush Style: bright chrome,with painted white escutcheon plate. <br /> 4. Semi-recessed Pendant Style: bright chrome, with bright chrome escutcheon plate; for use in all finished <br /> ceiling applications. <br /> 5. Dry Pendant Style: Rough brass, locate in walk-in freezers and coolers and other areas subject to freezing <br /> temperatures. <br /> tC. Sprinkler Head Cabinet and Wrench:finished steel cabinet,suitable for wall mounting,with hinged cover and space <br /> for 6 spare sprinkler heads plus sprinkler head wrench. Provide a separate cabinet for each style sprinkler head on <br /> the project. <br /> 2.07 EXTRA MATERIALS <br /> A. Valve Wrenches: Furnish to Owner,2 valve wrenches for each type of sprinkler head installed. <br /> B. Sprinkler Heads and Cabinets: Furnish six extra sprinkler heads of each style included in the project. Furnish each <br /> style with its own sprinkler head cabinet and special wrenches as specified in this Section. <br /> PART 3: EXECUTION <br /> 3.01 EXAMINATION <br /> ' A. Examine rough-in for fire equipment to verify actual locations of piping connections prior to installing. <br /> B. Do not proceed until unsatisfactory conditions have been corrected. <br /> C. Flow Test: Contractor to provide an updated flow test prior to design. <br /> ' 15300-5 No.99132-CP2 <br />