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Southern Human Services Center Smith Sinnett /2020072 <br />HVAC and Roof Renovations Orange County,North Carolina <br />Hydronic Specialties 23 21 14 - 3 <br />2.05 REDUCERS <br />A.Eccentric reducers shall be used on all water lines with top of reducer level. <br />B.Concentric reducers shall be used wherever equipment connections do not conform to pipe sizes. <br />2.06 UNIONS <br />A.Manufacturers: <br />1.Anvil <br />2.Victaulic <br />3.Viking Gourp <br />4.Ward <br />5.Or Approved Equal <br />B.Unions 2 inches and smaller shall be rated at 150 psi working pressure. <br />C.Unions 2.5 inches and larger shall be gasketed flanged connections. <br />D.Unions shall be ground joint with brass to iron seat.Gasket material shall be 1/16 inch compressed <br />fiber gasket or approved equivalent. <br />E.Flanged unions shall have welding ends. <br />F.Unions or flanges for servicing and disconnect are not required in installations using grooved joint <br />couplings.(The couplings shall serve as unions /disconnect points.) <br />G.Provide dielectric unions or waterway fittings with appropriate end connections for the pipe <br />materials in which installed,to isolate dissimilar metals. <br />2.07 ESCUTCHEONS <br />A.Manufacturers: <br />1.Crane <br />2.Ferguson <br />3.Ritter <br />B.Escutcheons shall be provided wherever pipes pass through walls,floors,or ceilings. <br />C.Escutcheons shall be of sufficient size to cover insulation. <br />D.Escutcheons shall be split ring,cast brass,chromium plated type. <br />E.Escutcheons shall be designed to cover pipe sleeve projection. <br />PART 3 EXECUTION <br />3.01 INSTALLATION <br />A.Install specialties in accordance with manufacturer's instructions. <br />B.Provide manual air vents at system high points and as indicated. <br />C.For automatic air vents in ceiling spaces or other concealed locations,provide vent tubing to <br />nearest drain. <br />END OF SECTION <br />DocuSign Envelope ID: 94E7997D-4F29-42F6-A9B4-0A160438D2A6