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OC Motor Pool and Maintenance Shop <br />PDC Project 23017 Facility Natural-Gas Piping 23 11 23 - 3 <br />2.05 PLUG VALVES <br />A.Construction 2-1/2 Inches and Larger: MSS SP-78,175 psi CWP,cast iron body and plug, <br />pressure lubricated,Teflon or Buna N packing,flanged or grooved ends. Provide lever operator <br />with set screw. <br />2.06 STRAINERS <br />A.Manufacturers: <br />1.Armstrong International,Inc <br />2.Green Country Filter Manufacturing <br />3.WEAMCO <br />4.Or Approved Equal <br />B.Size 2 inch and Under: <br />1.Threaded brass body for 175 psi CWP,Y pattern with 1/32 inch stainless steel perforated <br />screen. <br />2.Class 150,threaded bronze body 300 psi CWP,Y pattern with 1/32 inch stainless steel <br />perforated screen. <br />C.Size 1-1/2 inch to 4 inch: <br />1.Class 125,flanged iron body,Y pattern with 1/16 inch stainless steel perforated screen. <br />2.07 LINE PRESSURE REGULATORS AND APPLIANCE REGULATORS INDICATORS <br />A.Manufacturers: <br />1.Actaris Metering Systems (A brand of ITT Controls) <br />2.Dungs Combustion Controls <br />3.Maxitrol Company <br />4.Pietro Fiorentini <br />5.Or Approved Equal <br />B.Compliance Requirements: <br />1.Appliance Regulator: ANSI Z21.18/CSA 6.3. <br />2.Line Pressure Regulator: ANSI Z21.80/CSA 6.22. <br />C.Materials in Contact With Gas: <br />1.Housing: Aluminum,steel (free of non-ferrous metals). <br />2.Seals and Diaphragms: NBR-based rubber. <br />D.Maximum Inlet Operating Pressure: 10 psi. <br />1.Appliance Regulator: 10 psi. <br />2.Line Pressure Regulator: 10 psi. <br />E.Maximum Body Pressure: 10 psi. <br />F.Output Pressure Range: 1 inch wc to 80 inch wc. <br />PART 3 EXECUTION <br />3.01 PREPARATION <br />A.Ream pipe and tube ends. Remove burrs.Bevel plain end ferrous pipe. <br />B.Remove scale and dirt,on inside and outside,before assembly. <br />C.Prepare piping connections to equipment with flanges or unions. <br />3.02 INSTALLATION <br />A.Install in accordance with manufacturer's instructions. <br />B.Provide non-conducting dielectric connections wherever jointing dissimilar metals. <br />C.Route piping in orderly manner and maintain gradient. Route parallel and perpendicular to walls. <br />D.Install piping to maintain headroom,conserve space,and not interfere with use of space. <br />E.Group piping whenever practical at common elevations. <br />Docusign Envelope ID: EF9C08D2-5B75-438B-8D6D-8473F81BD7C4