ࡱ> jmi}_ 'bjbjzyzy MA6b6b*~ ~ 8F,r<Wi( !# hhhhhhh$Ojmh-$  $$h4h8)))$h)$h))bl\ fp*e%x`V|hi<Wi`n& nfnf$$)$$$$$hh<($$$Wi$$$$n$$$$$$$$$~ B : SECTION 20 05 16 piping Expansion compensation GENERAL RELATED DOCUMENTS Drawings and general provisions of the Contract, including General Conditions and Division01 Specification Sections, apply to this Section. SUMMARY Perform all Work required to provide and install the following piping expansion compensation equipment indicated by the Contract Documents with supplementary items necessary for their proper installation. Flexible pipe connectors. Expansion joints and compensators. Pipe loops, offsets, and swing joints. REFERENCE STANDARDS The latest published edition of a reference shall be applicable to this Project unless identified by a specific edition date. All reference amendments adopted prior to the effective date of this Contract shall be applicable to this Project. All materials, installation and workmanship shall comply with the applicable requirements and standards addressed within the following references: MIL-E-17814E-Expansion Joints, Pipe, Slip-Type, Packed. QUALITY ASSURANCE Provide structural Work and equipment required to control expansion and contraction of piping. Verify that anchors, guides, and expansion joints provided, adequately protect system. Expansion Calculations Installation temperature: 50 degrees F. Safety Factory: 30 percent. Hot Water Heating, Domestic Hot Water, Chilled Water and Steam temperature shall be as per system design. SUBMITTALS Flexible Pipe Connectors: Indicate maximum temperature and pressure rating, facetoface length, live length, hose wall thickness, hose convolutions per foot and per assembly, fundamental frequency of assembly, braid structure, and total number of wires in braid. Expansion Joints: Indicate maximum temperature and pressure rating, and maximum expansion compensation. Indicate alignment, guide locations, quantities, spacing, etc. Operation and Maintenance Data: Include adjustment instructions, warranty. Manufacturer Qualifications: Company specializing in manufacturing the products specified in this Section with minimum three (3) years documented experience. EXTRA MATERIALS Refer to Section 01 78 46 for Maintenance Material Requirements. WARRANTY Provide a five (5) year warranty including coverage for leak-free performance of expansion joints. PRODUCTS GENERAL All materials shall meet or exceed all applicable referenced standards, federal, state and local requirements, and conform to codes and ordinances of authorities having jurisdiction. Manufacturers Flexible Pipe Connectors: Hyspan. Mason Industries Vibration Eliminator Co., Inc. Kinetics Noise Control Amber/Booth Company, Inc. Expansion Joints Steam: Hyspan Model Series 3505. SF Pathway Model Xpress FF with anchor foot. Expansion Joints Steel Piping: Hyspan Model 3501 series. SF Pathway Model Xpress FF with anchor foot. Expansion Joints External Ring: Hyspan Model Series 5500. SF Pathway Model Flexway CT. Flexonics Model TCS-R. Pipe Alignment Guides: Anvil Model Fig. 255. Piping Technology & Products Model Fig. 6. Hyspan Model Series 9500. FLEXIBLE PIPE CONNECTORS Copper Piping - Domestic Water: Exterior Sleeve: Braided bronze or stainless. Pressure Rating: 200 psig WOG and 250 degrees F. Joint: As specified for pipe joints. Size: Use pipe-sized units. Maximum offset: 3/4 inch on each side of installed centerline. AHU and Pump Flexible Connectors Flexible connectors shall be of the molded twin spherical type. Provide neoprene with nylon construction or EPDM. Unit shall be rated at 225 PSI and maximum temperature of 225F. Provide 150# flanges and galvanized aircraft cable or control rods. Other HVAC Piping Flexible Connectors Type 321 stainless steel hose and Type 304 stainless braid sheath, with carbon steel threaded fittings for pipe sizes 2 inches and less, and carbon steel flanges for pipe sizes 2-1/2 inches and greater. Hose shall have a maximum working pressure of 200 psi at 70F through 4, 155 psi at 70F through 12. EXPANSION JOINTS Steam - Stainless Steel Bellows (Externally Pressurized Guided Type): Pressure Rating: 300 psig, maximum temperature 850 degrees F. Maximum Compression: 4 inch. Maximum Extension: 1 inch. Joint: As specified for ANSI class. Size: Use pipe-sized units. Application: Steel piping 3 inches and under. Steel Piping - 150 psig Chilled Water, 150 psig Heating Water, and Steam Condensate: Annular Corrugated Inner Core: Steel laminated bellows meeting ASTM A 240. Exterior Sleeve: Steel housing meeting ASTM A 53 GRB. Pressure Rating: 150 psig and 300 psig at 750 degrees F. Refer to Drawings. Joint: Flanged 150 and 300 raised face as required for piping system. Size: Use pipe-sized units. Axial Compression: 4 inches. External Ring Stainless Steel Bellows Restrained (Chilled and Heating Water Pump Connectors) Type: Pressure Rating: 350 psig at 400 degrees F. Maximum Compression: 0.75 to 1.00 inches. Maximum Extension: 0.25 inches. Maximum Offset: 0.13 inches. Joint: Flanged as required by ANSI class. Size: Use pipe-sized units. Bellows: Type 321 stainless steel. Application: Steel piping over 3 inches. ACCESSORIES Pipe Alignment Guides: Two (2) piece welded steel with enamel paint, bolted, with spider to fit standard pipe, frame with four mounting holes, clearance for minimum 1 inch thick insulation, minimum 3 inch travel. Provide and install alignment guides at expansion joints per manufacturers requirements. EXECUTION INSTALLATION Installation shall meet or exceed all applicable federal, state and local requirements, referenced standards and conform to codes and ordinances of authorities having jurisdiction. All installation shall be in accordance with manufacturers published recommendations. Accomplish structural Work and provide equipment required to control expansion and contraction of piping, loops, pipe offsets, and swing joints, and provide corrugated bellows type expansion joints where indicated on Drawings or required. Provide pipe anchors as shown on the Drawings and/or as required to facilitate proper operation of pipe guides. Install anchors in compression. Weld anchors to pipe and to building structure Provide pipe guides so that movement takes place along axis of pipe only. Guide sizes shall be the nominal pipe size with insulation. Guides shall not carry dead weight load on pipe and are not intended to take the place of the required pipe supports and rollers. Construct spool pieces to exact size of flexible connection for future insertion. Install flexible pipe connectors on pipes connected to equipment supported by vibration isolation. Provide line size flexible connectors. Install flexible connectors at right angles to equipment. Install one end immediately adjacent to isolated equipment and anchor the other end. Install in a horizontal plane unless indicated otherwise. Rigidly anchor pipe to building structure where shown or where necessary. Provide pipe guides so movement is directed along axis of pipe only. Erect piping such that strain and weight is not on cast connections or apparatus. Provide inspection services by flexible pipe manufacturer's representative for final installation. Certify that installation is in accordance with manufacturer's recommendations and that connectors are performing satisfactorily. Notify Owners Project Manager at least five (5) calendar days prior to the inspection. 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