CSP PSYCHIATRIC SERVICES UNIT SECTION HANGERS AND SUPPORTS FOR HVAC PIPING AND EQUIPMENT

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1 SECTION HANGERS AND SUPPORTS FOR HVAC PIPING AND EQUIPMENT PART 1 GENERAL 1.1 SUMMARY A. Section Includes 1. Pipe Hangers and Supports. 2. Vertical Piping Clamps. 3. Hanger-Rod Attachments. 4. Building Attachments. 5. Pipe Shields. 1.2 DEFINITIONS A. Terminology: As defined in MSS SP 90, Guidelines on Terminology for pipe hangers and supports. 1.3 SUBMITTALS A. Submit in accordance with Section and B. Product Data: For each type of product indicated. C. Shop Drawings: Show fabrication and installation details and include calculations for the following; include Product Data for components: 1. Equipment Supports. 2. Pipe stands. 3. Metal framing systems. D. Welding certificates. 1.4 QUALITY ASSURANCE A. Manufacturer s qualifications: Firms regularly engaged in manufacture of supports and anchors, of types and sizes required, whose products have been in satisfactory use in similar service for not less than 5 years. B. Codes and Standards 1. Code Compliance: Comply with applicable codes pertaining to product materials and installation of supports and anchors. 2. Qualify welding processes and welding operators according to AWS D1.1, Structural Welding Code-Steel. a. Certify that each welder has satisfactorily passed AWS qualification tests for welding processes involved and, if pertinent, has undergone recertification. 3. Qualify welding processes and welding operators according to ASME Boiler and Pressure Vessel Code, Section IX: Welding and Brazing Qualifications. 4. Listing and Labeling: Provide hangers and supports that are listed and labeled as defined in NFPA 70, Article 100. BID SET SEPTEMBER 28, 2011

2 a. UL and FM Compliance: Hangers, supports, and components include listing and labeling by UL and FM where used for fire protection piping systems b. Listing and Labeling Agency Qualifications: A Nationally Recognized Testing Laboratory (NRTL) as defined in OSHA Regulation Licensed Engineer: Prepare hanger and support design drawings and calculations for seismic restraint of piping and equipment. Include seal and signature of Registered Structural Engineer licensed in the State of California certifying compliance with Specifications. 6. MSS Standard Compliance: a. Provide pipe hangers and supports of which materials design and manufacture comply with MSS SP-58. Select and apply pipe hangers and supports, complying with MSS SP-69. b. Fabricate and install pipe Local and supports, complying with MSS SP-89. c. Terminology used in this Section is defined in MSS SP-90. C. Corrosion Resistance: Provide hot-dip galvanized steel, cadmium plating, or other approved corrosion resistant materials for exterior work and for work which will be subject to outdoor exposure during construction. D. Coordination 1. Coordinate resiliently supported work with other trades to avoid rigid contact with the building. Inform other trades such as drywall, plastering, or electrical, to avoid any contact which would reduce the vibration isolation. E. Conflicts and Discrepancies 1. Bring to the CDCR Representative s attention prior to installation any conflicts with other trades which will result in unavoidable contact to equipment, piping, etc., described herein, due to inadequate spaces, etc. Corrective work necessitated by conflicts after installation shall be at Contractor s expense. 2. Bring to the CDCR Representative s attention prior to installation any discrepancies between the Specifications and field conditions, changes required due to specific equipment selection, etc., prior to installation. Corrective work necessitated by discrepancies after installation shall be at Contractor s expense. F. Inspection and Instruction 1. Obtain inspection and approval from the CDCR Representative of any installation to be covered or enclosed prior to such enclosure. 1.5 VIBRATION ISOLATION A. Comply with the requirements of Section SEISMIC RESTRAINTS A. Submit manufacturer s technical product data, including installation instructions for each type of support and anchor. Include the following: 1. Manufacturer s data (catalog cuts and data sheets), for each manufactured component including hangers, attachments, inserts, thermal shields anchors and guides, auxiliary framing and wall seals. Provide a project specific hanger and support schedule indicating all devices, manufacture and model, where used. Cross reference to product data and specification paragraph. Data shall demonstrate that components comply with Specifications. BID SET SEPTEMBER 28, 2011

3 2. Support and Bracing Shop Drawings: Submit plans, sections, details, schedules and other information necessary to describe support hangers for all HVAC systems. Submittal shall indicate location and type of all hangers and supports. Each attachment to the building structure shall have vertical and horizontal point loads identified. 3. Maintenance Data: Submit maintenance data and parts list for each type of support and anchor. Include this data, product data, and shop drawings in maintenance manual in accordance with requirements of Division Welder certificates signed by Contractor certifying that welders comply with requirements specified under the Quality Assurance Article. 5. Shop drawings for each type of hanger and support, indicating dimensions weights, required clearances, and methods of component assembly. 6. Licensed Engineers hanger and support drawings specified in the Quality Assurance Article 7. Licensed Engineer s hanger and support installation report specified in the Field Quality Control Article. PART 2 PRODUCTS 2.1 GENERAL A. Where not fully called for in the Contract Documents, design of HVAC hangers and supports shall be the Mechanical Contractor s responsibility. Design shall conform to accepted engineering practice using a safety factor of 2-1/ MANUFACTURERS A. Manufacturer: Subject to compliance with requirements, provide hangers and supports of one of the following: 1. Superstrut, Gold Galv. 2. B -Line Systems, lnc. 3. Elcen Metal Products Co. 4. Fee & Mason Mfg.Co.; Div. Figgie International ITT Grinnel Corp. 5. Hubbard Enterprises / HOLDRITE 2.3 MANUFACTURED HORIZONTAL PIPING HANGERS AND SUPPORTS A. General: Except as otherwise indicated, provide factory fabricated horizontal piping hangers and supports complying with MSS SP-58, of one of the following MSS types listed, selected by installer to suit horizontal-piping systems, in accordance with MSS SP-69 and manufacturer s published product information. Use only one type by one manufacturer for each piping service. Select size of hangers and supports to exactly fit pipe size for bare piping, and to exactly fit around piping insulation with saddle or shield for insulated piping. Provide felt-lined hangers and supports for copper piping systems in direct contact with copper piping components including galvanized coatings where installed for piping and equipment that will not have a field applied finish. Pipe attachments include nonmetallic coating for electrolytic protection where attachments are in direct contact with copper piping. B. Thermal-Hanger Shield Inserts: 100 psi average compressive strength, waterproofed calcium silicate, encased with sheet metal shield. Shield Insert shall cover entire circumference of pipe and be of length indicated by manufacturer for pipe size and thickness of insulation by CSS Pre-Insulated Supports. BID SET SEPTEMBER 28, 2011

4 C. Powder-Actuated Drive-Pin Fasteners: Powder-actuated type, drive-pin attachments are not acceptable. D. Mechanical-Anchor Fasteners: Insert-type attachments with pull-out and shear capacities appropriate for supported loads and building materials where used. E. Adjustable Steel Clevises Hangers: MSS Type 1. F. Yoke Type Pipe Clamps: MSS Type 2. G. Steel Double Bolt Pipe Clamps: MSS Type 3. H. Steel Pipe Clamps: MSS Type 4. I. Pipe Hangers: MSS Type 5. J. Adjustable Swivel Pipe Rings: MSS Type 6. K. Adjustable Steel Bond Hangers: MSS Type 7. L. Adjustable Band Hangers: MSS Type 9. M. Adjustable Swivel Rings, Band Type: MSS Type 10. N. Split Pipe Pings: MSS Type 11. O. Extension Split Pipe Clamps: MSS Type 12. P. U-Bolts: MSS Type 24. Q. Clips: MSS Type 26. R. Pipe Slides and Slide Plates: MSS Type 35, including one of the following plate types: 1. Plate: Unguided type. 2. Plate: Guide type. 3. Plate: Hold-down Clamp type. S. Pipe Saddle Supports: MSS Type 36, including steel pipe base support and cast-iron floor flange. T. Pipe Stanchion Saddles: MSS Type 37, including steel pipe base support and cast-iron floor flange. U. Adjustable Pipe Saddle Supports: MSS Type 38, including steel pipe base support and castiron floor flange. V. Single Pipe Rolls: MSS Type 41. W. Adjustable Roller Hangers: MSS Type 43. X. Pipe Roll Stands: MSS Type 44. Y. Pipe Rolls and Plates: MSS Type 45. BID SET SEPTEMBER 28, 2011

5 Z. Adjustable Pipe Roll Stands: MSS Type 46. AA. Makeshift, field devised methods of HVAC pipe support, such as with the use of scrap framing materials, are not allowed. Support and positioning of piping shall be by means of engineered methods that comply with IAPMO PS VERTICAL PIPING CLAMPS A. General: Except as otherwise indicated, provide factory-fabricated vertical piping clamps complying with MSS SP-58, of one of the following MSS types listed, selected by Installer to suit vertical piping systems, in accordance with MSS SP-69 and manufacturer s published product information. Select size of vertical piping clamps to exactly fit pipe size of bare pipe. Provide felt-lined or copper-plated clams for copper-piping systems. B. For vertical mid-span supports of piping 4-inch and under, use Hubbard Enterprises/HOLDRITE Stout Brackets with Hubbard Enterprises/HOLDRITE Stout Clamps or two-hole pipe clamps (MSS Type 26). C. Two-Bolt Riser Clamps: MSS Type 8. D. Four-Bolt Riser Clamps: MSS Type HANGER-ROD ATTACHMENTS A. General: Except as otherwise indicated, provide factory-fabricated hanger-rod attachments complying with MSS SP-58, of one of the following MSS types listed, selected by Installer to suit horizontal-piping hangers and building attachments, in accordance with MSS SP-69 and manufacturer s published product information. Use only one type by one manufacturer for each piping service. Select size of hanger-rod attachments to suit hanger rods. B. Steel Turnbuckles: MSS Type 13. C. Steel Clevises: MSS Type 14. D. Swivel Turnbuckles: MSS Type 15. E. Malleable Iron Sockets: MSS Type 16. F. Steel Weldless Eye Nuts: MSS Type BUILDING ATTACHMENTS A. General: Except as otherwise indicated, provide factory-fabricated building attachments complying with MSS SP-58, of one of the following MSS types listed, selected by Installer to suit building substrate conditions, in accordance with MSS SP-69 and manufacturer s published product information. Select size of building attachments to suit hanger rods. Powder-actuated fasteners are not acceptable. B. Concrete Inserts 1. Cast-in-Place Concrete Inserts: MSS Type Post-Installed Anchors: Proprietary type, designed for intended uses, and ICC ESR evaluated. a. Manufacturers BID SET SEPTEMBER 28, 2011

6 1) ITW Ramset/Red Head. 2) Simpson. 3) Hilti Co. C. Top Beam C-Clamp: MSS Type 19. D. Side Beam or Channel Clamps: MSS Type 20. E. Center Beam Clamps: MSS Type 21. F. Welded Beam Attachments: MSS Type 22. G. C-Clamps: MS Type 23. H. Top Beam Clamps: MSS Type 25. I. Side Beam Clamps: MSS Type 27. J. Steel Beam Clamps with Eye Nut: MSS Type 28. K. Linked Steel Clamps with Eye Nut: MSS Type 29. L. Malleable Beam Clamps: MSS Type 30. M. Steel Brackets: One of the following for indicated loading: 1. Light Duty: MSS Type Medium Duty: MSS Type Heavy Duty: MSS Type 33. N. Side Beam Brackets: MSS Type 34. O. Plate Lugs: MSS Type 57. P. Horizontal Travelers: MSS Type 58. Q. Powder-Actuated Fasteners: Not allowed. 2.7 INSULATED PIPE SUPPORTS (PIPE SHIELDS) A. All insulated lines shall be protected at the point of support by insulated pipe supports provided and installed by the pipe erector. B. All insulated pipe supports shall be load rated. Load ratings shall be established by pipe support manufacturer based upon testing and analysis in conformance with the latest edition of the following codes: 1. ASME B31.1, MSS SP-58, MSS SP-69, and MSS SP-89. C. Manufacturer: Pipe Shields Incorporated (PSI); Michigan; B-Line. D. Insulation degrees insulation, encased in 360-degrees sheet metal shield. 2. Provide assembly of same thickness as adjoining pipe insulation. 3. Insulating Material: BID SET SEPTEMBER 28, 2011

7 a. Cold Piping (below 50 degrees F): Urethane foam, 100 psi compressive strength. b. Hot piping (above 50-degrees F): Calcium silicate, 100 psi compressive strength, treated with water repellent. 2.8 MISCELLANEOUS MATERIALS A. Auxiliary Steel: 1. Provide auxiliary structural steel as required for supports, anchors, guides, seismic restraints and vibration isolators. 2. All structural steel systems to be designed in accordance with AISC Steel Handbook. 3. All systems to be secured to building structure in a method acceptable to and approved by the Project Structural Engineer. 4. Steel Work: Fabricate neatly. Grind off excess burrs and welding spatter. Paint with rust inhibitive primer. B. Steel Plates, Shapes and Bars: Provide products complying with ASTM A36. C. Cement Grout: Portland cement (ASTM C150, Type I or Type III) and clean uniformly graded, natural sand (ASTM C404, Size No.2). Mix at a ratio of 1.0 part cement to 2.0 parts sand, by volume, with minimum amount of water required for placement and hydration. D. Heavy Duty Steel Trapezes: Fabricate from steel shapes selected for loads required; weld steel in accordance with AWS Standards. E. Pipe Alignment Guides: Provide factory-fabricated guides, of cast semi-steel or heavy fabricated steel, consisting of bolted two-section outer cylinder and base with two section guiding spider bolted tight to pipe. Size guide and spiders to clear pipe and insulation (if any), and cylinder. Provide guides of length recommended by manufacturer to allow indicated travel. 1. Manufacturers a. Hyspan. b. Metraflex. c. Or approved equal. PART 3 EXECUTION 3.1 GENERAL A. Install devices in accordance with manufacturer s recommendations. B. Examine areas and conditions under which supports and anchors are to be installed. Do not proceed with Work until unsatisfactory conditions have been corrected in a manner acceptable to installer. C. Support of pipe tubing and equipment shall be accomplished through means of engineered products specific to each application. Makeshift field devised methods will not be allowed. D. Comply with MSS SP-69 for pipe hanger selections and applications that are not specified in piping specification Sections. 3.2 PREPARATION BID SET SEPTEMBER 28, 2011

8 A. Proceed with installation of hangers, supports and anchors only after required building structural work has been completed in areas where the Work is to be installed. Correct inadequacies including (but not limited to) proper placement of inserts, anchors and other building structural attachments. B. Prior to installation of hangers, supports, anchors and associated Work, Installer shall meet at Project site with Contractor, Installer of each component of associated Work, Inspection and testing agency representatives (if any), Installers of other Work requiring coordination with Work of this Section and the CDCR Representative for purpose of reviewing material selections and procedures to be followed in performing the Work in compliance with requirements specified. 3.3 INSTALLATION OF BUILDING ATTACHMENTS A. Install building attachments at required locations within concrete or on structural steel for proper piping support. Space attachments within maximum piping span length indicated in MSS SP-69. Install additional building attachments where support is required for additional concentrated loads, including valves, flanges, guides, strainers, expansion joints, and at changes in direction of piping. Install concrete inserts before concrete is placed; fasten insert securely to forms. B. Loading on Steel Beams 1. Do not place eccentric loads on steel beams for loads greater than 50-pounds. 2. For loads greater than 50 pounds, use attachments which create concentric loading. C. Cast-in Place Concrete Inserts 1. Install before concrete is placed. Fasten inserts securely to forms. 2. Install with reinforcing bar through opening at top of insert or with steel plate to distribute load, as detailed on Drawings. 3. Maximum load per insert in slabs shall be 200 pounds, with a minimum spacing of 5 feet in any direction. For loads greater than 200 pounds, or where spacing cannot be maintained, make attachment to building structure or auxiliary steel, rather than to slab. D. Concrete Wedge Anchor Inserts: Maximum tension load per insert shall not exceed manufacturer s published rating. E. Powder-Actuated Fasteners: Not allowed. 3.4 INSTALLATION OF HANGERS AND SUPPORTS A. General: Install hangers, supports, clamps and attachments to support piping properly from building structure; comply with MSS SP-69. Arrange for grouping of parallel runs of horizontal piping to be supported together on trapeze type hangers where possible. Install supports with maximum spacing complying with MSS SP-69. Where piping of various sizes is to be supported together by trapeze hangers, space hangers for smallest pipe size or install intermediate supports of smaller diameter pipe. Do not use wire or perforated metal to support piping, and do not support piping from other piping. Install in accordance with Seismic Restraint manual Guidelines for Mechanical Systems (SMACNA). 1. Materials, design and type numbers per MSS-58. BID SET SEPTEMBER 28, 2011

9 B. Install hangers and supports complete with necessary inserts, bolts, rods, nuts, washers, and other accessories. Except as otherwise indicated for exposed continuous pipe runs, install hangers and supports of same type and style as installed for adjacent similar piping. C. Prevent electrolysis in support of copper tubing by use of hangers and supports which are copper plated, felt-lined. D. Provisions for Movement: Install hangers and supports to allow controlled movement of piping systems and to permit freedom of movement between pipe anchors, and to facilitate action of expansion joints, expansion loops, expansion bends and similar units. E. Load Distribution: Install hangers and supports so that piping live and dead loading and stresses from movement will not be transmitted to connected equipment. F. Pipe Slopes: Install hangers and supports to provide indicated pipe slopes and so that maximum pipe deflections allowed by ASME B31.1 Power Piping Codes are not exceeded. G. Insulated Piping: Comply with the following installation requirements: 1. Provide insulated pipe support (pipe shield) at each support of insulated piping. 2. Select model of insulated pipe support according to published recommendations of insulated pipe support manufacturer, based on pipe size, pipe material, fluid medium, fluid temperature, support spacing, and type of support. 3. Submit tabulation showing proposed uses of insulated pipe supports for different applications. H. Provide pipe supports on all DWV vertical piping penetrating floor slabs. I. All hanger components shall be Superstrut Gold Galv or equal. 1. Individually Suspended Piping: Superstrut J-Hanger or Clevis, complete with threaded rod. All hangers on supply and return piping handling heating hot water shall have a swing connector at point of support. Copper pipe will be used in conjunction with felt lined hangers. Pipe Size 2-inch and Smaller 2-1/2-inch to 3-1/2-inch 4-inch to 5-inch 6-inch 8-inch and up Rod Size 3/8-inch 1/2-inch 5/8-inch 3/4-inch 7/8-inch 2. Trapeze Suspension: Superstrut 1-5/8-inch width channel in accordance with manufacturer s published load ratings. No deflection to exceed L/180 of a span. 3. Trapeze Supporting Rods: Shall have a safety factor of 5; securely anchor to building structure. 4. Pipe Straps: Superstrut 702 isolate copper pipe with two thicknesses of 2-inch wide 10-mil polyvinyl tape (Cush-A-Strip or Cush-A-Clamps). Where used for seismic support systems, provide Superstrut 702 or C708 series pipe straps. J. Concrete Inserts: Superstrut C302 continuous insert or 452-TB spot insert. Do not use powder-actuated fasteners for support of overhead piping unless approved by the CDCR Representative. BID SET SEPTEMBER 28, 2011

10 1. Install building attachments within concrete or to structural steel. Space attachments within maximum piping span length indicated in MSS SP-69. Install additional attachments at concentrated loads, including valves, flanges, guides, strainers, expansion joints, and at changes in direction of piping. Install concrete inserts before concrete is placed; fasten insert to forms. Install reinforcing bars through openings at top of inserts. 2. Install concrete inserts in new construction prior to placing concrete. 3. Install post-installed concrete anchors after concrete is placed and completely cured. Install according to fastener manufacturer s written instructions. Do not use in lightweight concrete slabs or in concrete slabs less than 4 inches thick. K. Steel Connectors: Beam clamps with retainers. 1. Install hangers and supports complete with necessary inserts, bolts, rods, nuts washers, and other accessories L. Load Distribution: Install hangers and supports so that piping live and dead loading and stresses from movement will not be transmitted to connected equipment. M. Support to Structure 1. Steel Structure: Provide and install additional steel bracing as required to suit structure. Provide through bolts with length to suit requirements of the structural components. Burning or welding on any structural member may only be done if approved by the CDCR Representative. N. Rubber Neoprene Pipe Isolators 1. Pipe isolators shall comprise an internal rubber or neoprene material that isolates pipe from hanger and structure. Install at all piping located in acoustical walls. Architectural Drawings shall show location of acoustical walls. 2. Isolation material shall be either a rubber or neoprene material that prevents contact between the pipe and the structure. Superstrut S716 or A716. O. Pipe Hangers and Support Spacing: Locate hangers and supports at each change of direction, within one foot of elbow, and space at or within following maximum limits. Note that spacing listed are recommended maximums; increased spacing requirements due to California Building Code requirements, CCR Title 24, or other regulations in force and applicable for this contract shall be adhered to. Pipe Steel Steel Copper Diameter Fluid Vapor Fluid 1/2 to 1-inch /4 to1-1/2-inch Over 2-inch P. Provide support for piping through roof, arranged to anchor piping solidly in place at the roof penetration. Q. Provide rigid insulation and a 12-inch long, 18 gauge galvanized sheet metal shield between the covering and the hanger whenever hangers are installed on the outside of the pipe covering or CSS Pre-Insulated Calcium Silicate Support. R. Insulate copper tubing from ferrous materials and hangers with felt lined hangers. BID SET SEPTEMBER 28, 2011

11 S. Provide a support or hanger close to each change of direction of pipe either horizontal or vertical and as near as possible to concentrated loads. T. Suspend rods from concrete inserts with removable nuts where suspended from concrete decks. Power-actuated fasteners will not be allowed. 3.5 ADJUSTING AND CLEANING A. Hanger Adjustment: Adjust hangers so as to distribute loads equally on attachments. B. Support Adjustment: Provide grout under supports so as to bring piping and equipment to proper level and elevations. C. Cleaning: Clean factory-finished surfaces. Repair any marred or scratched surfaces with manufacturer s touch-up paint. 3.6 PAINTING A. Touch Up: Clean field welds and abraded areas of shop paint and exposed areas immediately after erection of hangers and supports. Use same materials as used for shop painting. Comply with SSPC-PA1 requirements for touching up field-painted surfaces. 1. Apply by brush or spray to provide a minimum dry film thickness of 2.0 mils. B. Touching Up: Cleaning and touchup painting of field welds, bolted connections, and abraded areas of shop paint on miscellaneous metal is specified in Section C. Galvanized Surfaces: Clean welds, bolted connections, and abraded areas and apply galvanizing-repair paint to comply with ASTM A FIELD QUALITY CONTROL A. Licensed Engineer s Report: Prepare hanger and support installation report. Include seal and signature of Registered Structural Engineer, licensed in the State of California, certifying compliance with Specifications. END OF SECTION BID SET SEPTEMBER 28, 2011