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Orange County Health Department Improvements Smith Sinnett /2024008 <br />Hillsborough,NC Orange County Asset Management Services <br />HANGERS AND SUPPORTS FOR HVAC PIPING AND EQUIPMENT 23 05 29 - 4 <br />b.Roller Support: MSS SP-58 Types 41 or 43 through 46,with appropriate saddle of MSS SP-58 <br />Type 39 for insulated pipe. <br />c.Sliding Support: MSS SP-58 Types 35 through 38. <br />J Pipe Stanchions: <br />1.Material: Malleable iron,ASTM A47/A47M;or carbon steel,ASTM A36/A36M. <br />2.Provide coated or plated saddles to isolate steel hangers from dissimilar metal tube or pipe. <br />3.For pipe runs,use stanchions of same type and material where vertical adjustment is required for <br />stationary pipe. <br />K Beam Clamps: <br />1.MSS SP-58 types 19 through 23,25 or 27 through 30 based on required load. <br />2.Beam C-Clamp: MSS SP-58 type 23,​malleable iron and steel​with ​zinc​finish. <br />3.Small or Junior Beam Clamp: MSS SP-58 type 19,malleable iron with ​zinc​finish. For inverted usage <br />provide manufacturer listed size(s). <br />4.Wide Mouth Beam Clamp: MSS SP-58 type 19,malleable iron with zinc or galvanized finish. <br />5.Centerload Beam Clamp with Extension Piece: MSS SP-58 type 30,malleable iron with galvanized <br />finish. <br />6.FM (AG)and UL (DIR)Approved Beam Clamp: MSS SP-58 type 19,​plated finish​, <br />7.Provide clamps with hardened steel cup-point set screws and lock-nuts for anchoring in place. <br />8.Material: ASTM A395/A395M ductile iron,ASTM A36/A36M carbon steel,ASTM A47/A47M <br />malleable iron,ASTM A181/A181M forged steel,or ASTM A283/A283M steel. <br />L Riser Clamps: <br />1.For insulated pipe runs,provide two bolt-type clamps designed for installation under insulation. <br />2.MSS SP-58 type 1 or 8, <br />3.Medium Split Horizontal Pipe Clamp:MSS SP-58​​type 4 <br />4.Copper Tube Pipe Clamp:MSS SP-58 type 8,copper-plated. <br />5.UL (DIR)listed: Pipe sizes 1/2 to 8 inch. <br />M U-Bolts: <br />1.MSS SP-58 Type 24,​zinc-coated carbon steel​u-bolt for pipe support or anchoring. <br />N Insulation Clamps: <br />1.Two bolt-type clamps designed for installation under insulation. <br />2.Material:​Carbon steel​with ​galvanized steel or zinc​finish. <br />O Pipe Hangers: <br />1.Split Ring Hangers: <br />a.Provide ​hinged split ring and yoke roller​hanger with ​zinc or copper plated​finish. <br />b.Material: ASTM A47/A47M malleable iron or ASTM A36/A36M carbon steel. <br />c.Provide hanger rod and nuts of the same type and material for a given pipe run. <br />d.Provide coated or plated hangers to isolate steel hangers from dissimilar metal tube or pipe. <br />2.Clevis Hangers,Adjustable: <br />a.Copper Tube:MSS SP-58 Type 1,copper-plated. <br />b.Standard-Duty:MSS SP-58​Type 1 <br />c.UL (DIR)listed: Pipe sizes 2-1/2 to 8 inch. <br />d.FM (AG)listed: Pipe sizes 2-1/2 to 8 inch. <br />P Intermediate Pipe Guides: <br />1.Pipe Diameter 6 inch and Smaller: Provide minimum clearance of 0.16 inch. <br />2.Pipe Sizes 8 inch: 0.625 inch U-bolt with double nuts providing minimum clearance of 0.28 inch. <br />3.Pipe Size 10 inch: 0.75 inch U-bolt. <br />4.Pipe Sizes 12 to 16 inch: 0.875 inch U-bolt. <br />5.Pipe Sizes 18 to 30 inch: 1 inch U-bolt. <br />6.Use pipe clamps with oversize pipe sleeve that provides clearance around pipe. <br />Docusign Envelope ID: 2D852F9B-A7CF-462A-9536-444A53AA848A