SECTION PIPING SUPPORT SYSTEMS

Transcription

1 SECTION PIPING SUPPORT SYSTEMS PART 1 GENERAL 1.1 SUMMARY A. Section Includes: Systems used for supporting pipe. B. The absence of pipe supports, additional restraints and details on the Drawings shall not relieve the CONTRACTOR of the responsibility for providing them. Pipe supports and restraints indicated on the Drawings are shown only to convey the intent of the design for a particular location and are not intended to represent a complete system. Not all pipe supports or additional restraints are indicated on the Drawings; if not shown required pipe supports' design is included in the CONTRACTOR's scope of work. C. This is a Reference Section; therefore not all the items included in this Section may be required in the Project. Please refer to Drawings for items specifically required in this Project. D. Related Sections: 1.2 REFERENCES 1. SECTION SUBMITTAL PROCEDURES 2. SECTION FASTENERS AND ANCHORS 3. SECTION SODIUM HYDROXIDE DILUTION SYSTEM PIPING VALVES, AND APPURTENANCES 4. SECTION SODIUM HYDROXIDE SYSTEM PIPING VALVES AND APPURTENANCES 5. SECTION CATATONIC POLYMER SYSTEM PIPING VALVES AND APPURTENANCES 6. SECTION POTASSIUM PERMANGANATE SYSTEM PIPING VALVES AND APPURTENANCES A. The following is a list of standards which may be referenced in this Section: 1.3 DEFINITIONS 1. American Society for Testing and Materials (ASTM): a. A 123/A 123M, Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products. b. A 653/A 653M, Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvanealed) by the Hot-Dip Process. 2. International Conference of Building Officials (ICBO): International Building Code. 3. Manufacturers Standardization Society (MSS): a. SP 58, Pipe Hangers and Supports - Materials, Design and Manufacture. b. SP 69, Pipe Hangers and Supports - Selection and Application. c. SP 89, Pipe Hangers and Supports - Fabrication and Installation Practices. A. Wetted or Submerged: Submerged, less than one foot above liquid surface, below top of wall, under cover or slab of tank, or in other damp locations. B. "Pipe" or "piping" shall mean all pipe, piping system(s), hose, tube, fittings, joints, valves, and similar appurtenances PIPING SUPPORT SYSTEMS

2 C. Supports: wherever the word "supports" or "pipe supports" are used they shall mean pipe supports, hangers, structural connections, concrete inserts, anchors, guides, bolts, expansion units, restraints and all restraint, hanging, supporting, allowing controlled expansion, or other means of attaching piping along with the necessary appurtenances. 1.4 SUBMITTALS A. Shop Drawings: 1. Drawings of piping support systems, locating each support, brace, hanger, guide, component and anchor. Identify support, hanger, guide, and anchor type by catalog number and Shop Drawing detail number. 2. Indicate loads imposed on structure at each piping support. ENGINEER will review piping support loadings for adequacy of the proposed support system. 3. Revisions to support systems resulting from changes in related piping system layout or addition of flexible joints. 4. Proposed design of expansion loops and specific locations where expansion loops will be used. 1.5 DESIGN REQUIREMENTS A. General: 1. All supports and appurtenances shall be of approved standard design, unless otherwise acceptable to the ENGINEER and shall be adequate to maintain the supported load in proper position under all operating conditions. Any reference to a specific figure number of a specific manufacturer is for the purpose of establishing a type and quality of product and shall not be considered as proprietary. a. The minimum working factor of safety for all items, with the exception of springs, shall be five times the ultimate tensile strength of the material, assuming 10 feet of water-filled pipe being supported and normal test pressures. b. Design for all loads using a safety factor of All items shall be designed with liberal (adequate plus defined factor of safety) strength and stiffness to support, restrain, and allow expansion of the respective pipes under the maximum combination of peak loading conditions to include pipe weight, liquid weight, liquid movement and pressure forces, thermal expansion and contraction, vibrations, and all probable externally applied forces. 3. All of the equipment specified herein is intended to support, restrain, and allow expansion of the various types of pipe and piping systems shown on the Drawings. It shall be the responsibility of the CONTRACTOR to develop final details and any details associated with special conditions not already covered to meet the system conditions (in particular system temperatures and pressures) specified in the respective Divisions. 4. Supports shall be sufficiently close together such that the sag of the pipe is within limits that will permit drainage and avoid excessive (less than 50%) bending stresses from concentrated loads between supports. 5. Complete design details of the pipe system components including wall brackets shall be submitted for review and approval as specified in this Section. No support shall be installed without the written approval of the ENGINEER. Piping support systems must be designed by a professional engineer currently licensed in Colorado, seal and sign the calculations and submit for record purposes only. B. Seismic Design and restraint requirements, in accordance with the IBC 2006, shall be included in the design. None required. C. All pipe and appurtenances connected to equipment shall be supported in such a manner as to prevent any strain being imposed on the equipment. When manufacturers have PIPING SUPPORT SYSTEMS

3 D. All pipe and tubing shall be supported as required to prevent significant stresses in the pipe or tubing material, valves, fittings, and other pipe appurtenances, and to support and secure the pipe in the intended position and alignment. All supports shall be designed to adequately secure the pipe against excessive dislocation due to thermal expansion and contraction, internal flow forces and all probable external forces such as equipment, pipe, and personnel contact. E. Pipe Support Systems: 1. Support Load: Dead loads imposed by weight of pipes filled with water, except air and gas pipes, plus insulation. 2. Maximum Support Spacing and Minimum Rod Size: a. Steel or Ductile Iron Piping (Note that this spacing may require the use of higher load pipe clamps and more than a single anchor point in concrete or masonry): Pipe Size Maximum Support/Hanger Spacing * Minimum Rod Size Single Rod Hangers * 1" & smaller 6 feet 1/4" 1-1/2" through 2-1/2" 8 feet 1/4" 3" & 4" 10 feet 3/8" 6" 12 feet 3/8" 8" 12 feet 1/2" 10" & 12" 14 feet 5/8" 14" 16 feet 3/4" 16" & 18" 16 feet 7/8" 20" 18 feet 1" 24" 18 feet 1-1/4" 30" & larger As shown on Dwgs As shown on Dwgs * Unless otherwise shown on the Drawings. b. Plastic Piping: Pipe Size Maximum Support/Hanger Spacing * Minimum Rod Size Single Rod Hangers * 1" & smaller 6 feet 1/4" 1-1/2" through 2-1/2" 8 feet 1/4" 3" & 4" 10 feet 3/8" 6" 12 feet 3/8" 8" 12 feet 1/2" 10" 14 feet 5/8" 12 & larger As shown on Dwgs As shown on Dwgs PIPING SUPPORT SYSTEMS

4 * Unless otherwise shown on the Drawings. F. Framing Support System: 1. Beams: Size such that beam stress does not exceed 25,000 psi and maximum deflection does not exceed 1/240 of span. 2. Column Members: Size in accordance with manufacturer s recommended method. 3. Support Loads: Calculate using weight of pipes filled with water. 4. Maximum Spans: a. Steel and Ductile Iron Pipe, 3-Inch Diameter and Larger: 10-foot centers, unless otherwise shown. b. Other Pipelines and Special Situations: May require supplementary hangers and supports. 5. Electrical Conduit Support: Include in design of framing support system. G. Anchoring Devices: Design, size, and space support anchoring devices, including anchor bolts, inserts, and other devices used to anchor support, to withstand shear and pullout loads imposed by loading and spacing on each particular support per IBC H. Vertical Sway Bracing: 10-foot maximum centers, or as shown. PART 2 PRODUCTS 2.1 GENERAL A. When specified items are not available, fabricate pipe supports of correct material and to general configuration indicated by catalogs. B. Special support and hanger details are shown for cases where standard catalog supports are inapplicable. C. All pipe supports for exposed stainless steel piping and valves shall be made of carbon steel, with dielectric insulation between the support and the pipe and/ or valve. D. All submerged supports shall be type 316 stainless steel. 2.2 PIPE HANGERS AND SUPPORTS A. Saddle Supports (Pedestal Type): Schedule 40 pipe stanchion, saddle, and anchoring flange. 1. Nonadjustable Saddle: MSS SP 58 and SP 69, Type 37 with U-bolt. a. Anvil (formerly Grinnell); Figure 259. b. B-Line; Figure B Adjustable Saddle: MSS SP 58 and SP 69, Type 38 without clamp. a. Anvil (formerly Grinnell); Figure 264. b. B-Line; Figure B3093. B. Clevis Type: MSS SP 58, Type 1 or 6 1. Anvil (formerly Grinnell); Figure 104 or B-Line; Figure B3198 or B3100. C. Hinged Split Ring Pipe Clamp: MSS SP 58, Type 6 or Anvil (formerly Grinnell); Figure B-Line; Figure B3198H PIPING SUPPORT SYSTEMS

5 D. Hanger Rods, Clevises, Nuts, Sockets, Turnbuckles: In accordance with MSS SP 58. E. Un-insulated Copper Piping: 1. Coat with plastic or neoprene protective cover, as manufactured by: a. Anvil (formerly Grinnell); Figure 97C. b. B-Line; Figure B3170NFC. 2. No metal portion of hanger shall contact piping directly F. Attachments: 2.3 WALL BRACKETS 1. I-beam Clamp: Concentric Loading type, MSS SP 58, Type 21, 28, 29, or 30, which engage both sides of flange. A. Welded Steel Bracket: MSS SP 58 and SP 69, Type 33 (heavy-duty). 1. Anvil (formerly Grinnell); Figure B-Line; Figure B3067. B. One-Hole Clamp: Anvil (formerly Grinnell); Figure 126. C. Channel Type: 1. Unistrut. 2. Anvil (formerly Grinnell); Power-Strut. 3. B-Line; Strut System. 4. Aickinstrut (FRP). D. Custom: 2.4 PIPE CLAMPS 1. As shown in the Drawings. A. Riser Clamp: MSS SP 58 and SP 69, Type For Ferrous Piping: a. Anvil (formerly Grinnell); Figure 261. b. B-Line; Figure B For Nonferrous Piping: a. Anvil (formerly Grinnell); Figure 261C. b. B-Line; Figure B3373C. 2.5 CHANNEL TYPE SUPPORT SYSTEMS A. Channel Size: 12-gauge, 1-5/8-inch wide series. B. Members and Connections: Design for all loads with safety factor of 5. C. Support Brackets: Bracket shall have a minimum uniform load capacity of 1,000 lbs. and a minimum moment capacity of 6,000 foot-lbs. D. Materials, as indicated on the drawings. 1. Galvanized Steel: Pre-galvanized in accordance with ASTM A 525, Class G90, or hot-dip galvanized after fabrication. 2. Stainless Steel: Type FRP PIPING SUPPORT SYSTEMS

6 E. Manufacturers: 2.6 ACCESSORIES 1. Unistrut; Series B-Line. A. Insulation Shields: 1. Type: stainless steel, MSS SP 58 and SP 69, Type Manufacturers and Products: a. Anvil (formerly Grinnell); Figure 167. b. B-Line; Figure B3151. B. Welding Insulation Saddles: 1. Type: MSS SP 58 and SP 69, Type Manufacturers and Products: a. Anvil (formerly Grinnell); Figure Series 160. b. B-Line; Figure Series B3160. C. Vibration Isolation Pads 1. Type: Neoprene Waffle 2. Manufacturers and Products a. Mason Industries; Type W. b. Korfund; Korpad INTERMEDIATE PIPE GUIDES A. Piping 6 Inches and Smaller: 1. Type: Pipe clamp with oversized pipe sleeve to provide minimum 1/8-inch clearance. 2. Manufacturers and Products: a. B-Line; B3148 or B3180. b. Anvil (formerly Grinnell); Figure 103. B. Piping 8 Inches and Larger: 1. Type: Specially formed U-bolts with double nuts to provide 1/4-inch minimum clearance around pipe. 2. U-Bolt Stock Size: a. 8-Inch Pipe: 5/8 inch. b. 10-Inch Pipe: 3/4 inch. c. 12- Through 16-Inch Pipe: 7/8 inch. d. 18- Through 30-Inch Pipe: One inch. 2.8 PIPE ALIGNMENT GUIDES A. Type: 1. Piping 8 Inches and Smaller: Spider or sleeve type. 2. Piping 10 Inches and Larger: Roller type. B. Manufacturers: 1. Flexonics. 2. Anvil (formerly Grinnell). 3. B-Line PIPING SUPPORT SYSTEMS

7 2.9 PIPE ANCHORS A. Type: Anchor chair with U-bolt strap. B. Manufacturers and Products: 1. Anvil (formerly Grinnell); Figure B-Line; Figure B3147A or B3147B ANCHORING SYSTEMS A. Material, type, size, and embedment length: As designed and specified by the supplier HANGER AND SUPPORT SHOP/FACTORY FINISH A. Unless otherwise noted, prepare, prime, and finish coat in accordance with SECTION PART 3 EXECUTION 3.1 INSTALLATION A. General: 1. Install support systems in accordance with MSS SP 69 and MSS SP 89, unless shown otherwise. 2. Support piping connections to equipment by pipe support and not by equipment. 3. Support large or heavy valves, fittings, and appurtenances independently of connected piping. 4. Support no pipe from pipe above it. 5. Support pipe at changes in direction or in elevation, adjacent to flexible joints and couplings, and where shown. 6. Do not install pipe supports and hangers in equipment access areas, or bridge, or monorail crane runs. 7. Brace hanging pipes against horizontal movement by both longitudinal and lateral sway bracing and to reduce movement after startup. 8. Install lateral supports for seismic loads at all changes in direction. 9. Install pipe anchors where required to withstand expansion thrust loads and to direct and control thermal expansion. 10. Repair mounting surfaces to original condition after attachments are made. B. Standard Pipe Supports: 1. Horizontal Suspended Piping: a. Single Pipes: Adjustable swivel-ring, split-ring, or clevis hangers. b. Grouped Pipes: Trapeze hanger systems. c. Furnish galvanized steel protection shield and oversized hangers for insulated pipe. d. Furnish precut sections of rigid insulation with vapor barrier at hangers for insulated pipe. 2. Horizontal Piping Supported From Walls: a. Single Pipes: Wall brackets or wall clips attached to wall with anchors. Clips attached to wall mounted framing also acceptable. b. Stacked Piping: 1) Wall mounted framing system and clips acceptable for piping smaller than 3-inch minimal diameter. 2) Piping clamps that resist axial movement of pipe through support not acceptable. c. Wall mounted piping clips not acceptable for insulated piping PIPING SUPPORT SYSTEMS

8 3. Horizontal Piping Supported From Floors: a. Stanchion Type: 1) Pedestal type; adjustable with stanchion, saddle, and anchoring flange. 2) Use yoked saddles for piping whose centerline elevation is 18 inches or greater above floor and for exterior installations. 3) Provide neoprene waffle isolation pad under anchoring flanges, adjacent to equipment or where otherwise required to provide vibration isolation. b. Floor Mounted Channel Supports: 1) Use for piping smaller than 3-inch nominal diameter running along floors and in trenches at piping elevations lower than can be accommodated using pedestal pipe supports. 2) Attach channel framing to floors with anchor bolts. 3) Attach pipe to channel with clips or pipe clamps. 4. Vertical Pipe: Support with wall brackets and base elbow or riser clamps on floor penetrations. 5. Standard Attachments: a. To Concrete Walls: Concrete inserts or brackets or clip angles with expansion anchor bolts. C. Intermediate and Pipe Alignment Guides: 1. Provide pipe alignment guides (or pipe supports that provide same function) at expansion joints and loops. 2. Guide piping on each side of expansion joint or loop at 4- and 14-pipe diameters from each joint or loop. 3. Install intermediate guides on metal framing support systems not carrying pipe anchor or alignment guide. D. Accessories: 3.2 TESTING 1. Insulation Shield: Install on insulated nonsteel piping. Oversize rollers and supports. 2. Welding Insulation Saddle: Install on insulated steel pipe. Oversize rollers and supports. 3. Vibration Isolation Pad: Install under base flange of pedestal type pipe supports adjacent to equipment, and where required to isolate vibration. 4. Dielectric Barrier: a. Install between carbon steel members and copper or stainless steel pipe. b. Install between stainless steel supports and nonstainless steel ferrous metal piping. 5. Electrical Isolation: Install 1/4-inch by 3-inch neoprene rubber wrap between submerged metal pipe and oversized clamps. A. All pipe support systems shall be tested for compliance with the piping. After installation, each pipe support system shall be tested in accordance with individual specification sections. If any part of the pipe support system proves to be defective or inadequate, it shall be repaired or augmented to the satisfaction of the ENGINEER. END OF SECTION PIPING SUPPORT SYSTEMS

9 SECTION PIPING SPECIALTIES PART 1 GENERAL 1.1 SUMMARY A. Section Includes: Couplings, seals, expansions, penetrations, and other piping specialties. B. Related Sections: 1.2 REFERENCES 1. SECTION SUBMITTAL PROCEDURES 2. SECTION STRUCTURAL STEEL A. The following is a list of standards which apply to this Section: 1.3 SUBMITTALS 1. American National Standards Institute (ANSI): a. B16.5, Pipe Flanges and Flanged Fittings. 2. American Society for Testing and Materials (ASTM): a. A 153, Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware. b. A 276, Standard Specification for Stainless and Heat-Resisting Steel Bars and Shapes. 3. American Water Works Association (AWWA): C213, Fusion-Bonded Epoxy Coating for the Interior and Exterior of Steel Water Pipelines. A. Follow procedures, content requirements, and format of SECTION B. Shop Drawings: Manufacturer's data on materials, construction, end connections, ratings, and dimensions (as applicable). PART 2 PRODUCTS 2.1 GENERAL A. Provide required piping specialty items, whether shown or not shown on the Drawings, as required by applicable codes and standard industry practice. B. Rubber ring joints, mechanical joints, flexible couplings are considered flexible joints; welded pipe joints are not. C. Additional related items will be included in the individual Specifications and shown on the Drawings. D. Joints, size, and material - unless otherwise noted or required by the ENGINEER. 2.2 COUPLINGS 1. Except where noted, all joints referred to herein shall be of the same type, nominal diameter, material, and with a minimum rating equal to the pipe or fittings they are connected to. A. Flexible Coupling Compressed Air: PIPING SPECIALTIES

10 1. Service: Compressed air. 2. Flexible bronze hose rated to minimum ISO PSI to provide vibration isolation from air compressor and piping manifold. 3. Single braid cover, closed pitch bronze hose with threaded end connection. 4. Provide minimum 12-inch hose length and unions at end connections for easy removal. 5. Manufacturers: U.S. Host Corp.; Model CPB SLAB, FLOOR, WALL AND ROOF PENETRATIONS A. Insulated and Encased Pipe Sleeve: 1. Manufacturer and Products: Pipe Shields, Inc.; Models WFB, WFB-CS and -CW Series, as applicable. B. Modular Mechanical Seal: 1. Type: Interconnected synthetic rubber links shaped and sized to continuously fill annular space between pipe and wall sleeve opening. 2. Fabrication: Assemble interconnected rubber links with ASTM A 276, Type 316 stainless steel bolts, nuts, and pressure plates. 3. Size: According to manufacturer's instructions for the size of pipes shown to provide a watertight seal between pipe and wall sleeve opening, and to withstand the hydrostatic head of the application. 4. Manufacturer: Thunderline Link-Seal. 2.4 MISCELLANEOUS ADAPTORS A. Between different types of pipe and/or fittings special adapters may be required to provide proper connection. Some of these may be indicated on the Drawings or specified with individual types of pipe or equipment. However, it is the CONTRACTOR's responsibility to ensure proper connection between various types of pipe to structures and between pipe and valves, gates, fittings, and other appurtenances. Provide all adapters as required, whether specifically noted or not. 2.5 INSULATING DIELECTRIC UNIONS AND FLANGES A. Provide between ferrous and non-ferrous piping and where otherwise required for electrically insulated connection, as Shown B. Materials: Galvanically compatible with piping to which attached and pressure ratings suitable for system working pressures C. Unions 2-inches and smaller: Screwed or solder-joint type. D. Unions 2-1/2-inches and Larger: Flanged type, complete with bolt insulators, dielectric gasket, bolts, and nuts E. Manufacturers: 2.6 STRAINERS 1. Epco Sales, Inc. of Cleveland, OH. 2. Capitol Insulation Unions. 3. Smith Blair. 4. R.H. Baker, Series Romac. 6. Dresser, Style 39. A. Basket Strainers PIPING SPECIALTIES

11 1. Service: Sodium Hydroxide 25 to 50% solution. 2. Carbon steel body with 150# flanges. 3. Stainless steel basket with 1/16-inch perforations. 4. Quick-opening, swinging yoke. 5. Simplex strainer with threaded drain. 6. Seals: Suitable for service. 7. Manufacturer: Eaton Model 72 or Sureflow Model BWEB QUICK CONNECT COUPLINGS A. As shown, or specified on the Drawings. B. When not shown, or specified on the Drawings: 1. Material of fitting compatible with the chemical and service conditions. 2. Same size as line connected to it. 3. Provide cap or plug when application is pump-out or chemical delivery. 4. Manufacturer: a. OPW b. Ryan Herco c. Ever-tite 5. When not indicated otherwise: Male fitting with cap. 2.8 FLOOR DRAINS IN CAUSTIC AREA SERVICE A. Size as indicated on the Drawings B. Manufacturer: Spear C. Material: CPVC Body D. Style/Model: Labwaste LW S PART 3 EXECUTION 3.1 GENERAL A. Provide accessibility to piping specialties for control and maintenance. 3.2 PIPING FLEXIBILITY PROVISIONS A. General: 3.3 PIPING TRANSITION 1. Install thrust protection. 2. Install flexible couplings to facilitate piping installation, in accordance with the Drawings or with approval of ENGINEER. A. Applications: 1. Provide complete closure assembly where pipes meet other pipes or structures. 2. Pressure Pipeline Closures: Plain end pieces with double flexible couplings, unless otherwise shown. 3. Restrained Joint Pipe Closures: Install with thrust tie-rod assemblies as shown. 4. Gravity Pipe Closures: As specified for pressure pipelines. B. Installation: PIPING SPECIALTIES

12 3.4 PIPING EXPANSION 1. Flexible Transition Couplings: Install in accordance with coupling manufacturer's instructions to connect dissimilar pipe and pipes with a small difference in outside diameter. A. Piping Installation: Allow for thermal expansion due to differences between installation and operating temperatures. 3.5 SLAB, FLOOR, AND WALL PENETRATIONS A. Applications: 1. Existing Walls and Floors: Rotary drilled holes. B. Wall Pipe Installation: 1. Isolate embedded metallic piping from concrete reinforcement as acceptable to the ENGINEER. 2. Support wall pipes securely by formwork to prevent contact with reinforcing steel and tie-wires. END OF SECTION PIPING SPECIALTIES