13. 100%_Specifications.pdf
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- General Construction Services MATOC for BEP Western Currency Facilities Federal contract opportunity
- Solicitation number
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This document is a 100% Design Submission for the Bureau of Engraving and Printing (BEP) 1220316 project. It contains detailed specifications for the mechanical systems, including HVAC, piping, and supporting elements. The specifications cover requirements for pipe and fittings, piping specialties, valves, miscellaneous materials, and supporting elements. It also includes requirements for testing, adjusting, and balancing (TAB) of the HVAC systems. The document specifies the standards, codes, and procedures to be followed, as well as the submittals required from the contractor. Key details include performance requirements, pressure and temperature ratings, material properties, installation methods, testing and acceptance criteria, and project management requirements. This appears to be a technical specification document to support a federal construction project, rather than a solicitation for a new contract opportunity.
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Other files for this federal contract opportunity
| File | Type | Posted |
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| Solicitation 2031ZA24B00011 0002.pdf | ||
| 14. Updated Drawings Package.pdf | ||
| 12. Questions and Answers.pdf | ||
| Solicitation 2031ZA24B00011 0001.pdf | ||
| Solicitation 2031ZA24B00011.pdf | ||
| 11. List of Air Handler Units Requiring Replacement.pdf | ||
| 10. Questions and Answers - MATOC Site Visit.pdf | ||
| Solicitation 2031ZA24B00011.pdf | ||
| 9. Air Handler Refurbishment (Phase 4) Photos.pdf | ||
| 8. Attendance Record - Site Visit.pdf | ||
| 7. Air Handler Refurbishment (Phase 4) Drawings.pdf | ||
| Solicitation 2031ZA24B00011.pdf | ||
| 1. Past Performance Questionaire.docx | DOCX document | |
| 4. SOW - Task Order - Air Handler Refurbishment (Phase 4).pdf | ||
| 6. Task Order Pricing Table.pdf | ||
| 2. Davis-Bacon Wage Determination.pdf | ||
| 3. SOW - General Construction IDIQ.pdf | ||
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Bureau of Engraving and Printing 1220316
100% Design Submission October 18, 2022
PROJECT TABLE OF CONTENTS
DIVISION 01 – GENERAL REQUIREMENTS
REFERENCE DIVISION 01 SPECIFICATIONS EXTERNALLY ATTACHED, TO BE PREPARED AND
PROVIDED SEPARATELY BY BEP.
DIVISION 23 – HEATING, VENTILATING, AND AIR CONDITIONING (HVAC)
23 05 15 05/22 COMMON PIPING FOR HVAC
23 05 93 11/15 TESTING, ADJUSTING, AND BALANCING FOR
HVAC
23 07 00 02/13, CHG 7: 05/20 THERMAL INSULATION FOR MECHANICAL
SYSTEMS
23 08 00.00 20 02/21, CHG 1: 05/21 COMMISSIONING OF MECHANICAL SYSTEMS
23 09 00 02/19, CHG 3: 05/21 INSTRUMENTATION AND CONTROL FOR HVAC
23 09 13 11/15, CHG 2: 05/21 INSTRUMENTATION AND CONTROL DEVICES
FOR HVAC
23 09 23.02 02/19, CHG 1: 02/20 BACNET DIRECT DIGITAL CONTROL FOR HVAC
AND OTHER BUILDING CONTROL SYSTEMS
23 30 00 05/20, CHG 1: 02/22 HVAC AIR DISTRIBUTION
DIVISION 26 - ELECTRICAL
26 20 00 08/19, CHG 3: 11/21 INTERIOR DISTRIBUTION SYSTEM
DIVISION 28 - ELECTRONIC SAFETY AND SECURITY
28 31 76 08/20 INTERIOR FIRE ALARM AND MASS
NOTIFICATION SYSTEM, ADDRESSABLE
-- End of Project Table of Contents --
100% Design Submission
SECTION 23 05 15 Page 1
PART 1 GENERAL
1.1 REFERENCES
SECTION 23 05 15
COMMON PIPING FOR HVAC
05/22
The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.
AMERICAN INSTITUTE OF STEEL CONSTRUCTION (AISC)
AISC 325 (2017) Steel Construction Manual
AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME)
ASME A112.19.2/CSA B45.1 (2018; ERTA 2018) Standard for Vitreous China Plumbing Fixtures and Hydraulic Requirements for Water Closets and Urinals
ASME B16.1 (2020) Gray Iron Pipe Flanges and Flanged
Fittings Classes 25, 125, and 250
ASME B16.3 (2021) Malleable Iron Threaded Fittings, Classes 150 and 300
ASME B16.4 (2021) Gray Iron Threaded Fittings;
Classes 125 and 250
ASME B16.5 (2020) Pipe Flanges and Flanged Fittings NPS 1/2 Through NPS 24 Metric/Inch Standard
ASME B16.9 (2018) Factory-Made Wrought Buttwelding
Fittings
ASME B16.11 (2016) Forged Fittings, Socket-Welding and Threaded
ASME B16.22 (2018) Standard for Wrought Copper and
Copper Alloy Solder Joint Pressure Fittings
ASME B16.25 (2017) Buttwelding Ends
ASME B16.34 (2021) Valves - Flanged, Threaded and Welding End
ASME B16.39 (2020) Standard for Malleable Iron
Threaded Pipe Unions; Classes 150, 250, and 300
ASME B31.3 (2020) Process Piping
ASME B36.10M (2015; Errata 2016) Welded and Seamless
Wrought Steel Pipe
100% Design Submission
SECTION 23 05 15 Page 2
ASME B40.100 (2013) Pressure Gauges and Gauge Attachments
ASME BPVC SEC IX (2017; Errata 2018) BPVC Section
IX-Welding, Brazing and Fusing Qualifications
AMERICAN WELDING SOCIETY (AWS)
AWS A5.8/A5.8M (2019) Specification for Filler Metals for
Brazing and Braze Welding
AWS WHB-2.9 (2004) Welding Handbook; Volume 2, Welding Processes, Part 1
ASTM INTERNATIONAL (ASTM)
ASTM A6/A6M (2021) Standard Specification for General
Requirements for Rolled Structural Steel Bars, Plates, Shapes, and Sheet Piling
ASTM A53/A53M (2020) Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless
ASTM A105/A105M (2021) Standard Specification for Carbon
Steel Forgings for Piping Applications
ASTM A106/A106M (2019a) Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service
ASTM A126 (2004; R 2019) Standard Specification for
Gray Iron Castings for Valves, Flanges, and Pipe Fittings
ASTM A183 (2014; R 2020) Standard Specification for
Carbon Steel Track Bolts and Nuts
ASTM A197/A197M (2000; R 2019) Standard Specification for Cupola Malleable Iron
ASTM A234/A234M (2019) Standard Specification for Piping
Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service
ASTM A276/A276M (2017) Standard Specification for
Stainless Steel Bars and Shapes
ASTM A307 (2021) Standard Specification for Carbon Steel Bolts, Studs, and Threaded Rod 60 000 PSI Tensile Strength
ASTM A312/A312M (2021) Standard Specification for
Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
ASTM A563 (2015) Standard Specification for Carbon
100% Design Submission
SECTION 23 05 15 Page 3
ASTM
B32 and Alloy Steel Nuts
(2020) Standard Specification for Solder Metal
ASTM B62 (2017) Standard Specification for Composition Bronze or Ounce Metal Castings
ASTM B88 (2020) Standard Specification for Seamless Copper Water Tube
ASTM B117 (2019) Standard Practice for Operating Salt Spray (Fog) Apparatus
ASTM B370 (2012; R 2019) Standard Specification for Copper Sheet and Strip for Building Construction
ASTM B749 (2020) Standard Specification for Lead and Lead Alloy Strip, Sheet and Plate Products
ASTM C67/C67M (2021) Standard Test Methods for Sampling and Testing Brick and Structural Clay Tile
ASTM C109/C109M (2021) Standard Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or (50-mm) Cube Specimens)
ASTM C404 (2018) Standard Specification for Aggregates for Masonry Grout
ASTM C476 (2020) Standard Specification for Grout for Masonry
ASTM C553 (2013; R 2019) Standard Specification for Mineral Fiber Blanket Thermal Insulation for Commercial and Industrial Applications
ASTM C920 (2018) Standard Specification for Elastomeric Joint Sealants
ASTM D2000 (2018) Standard Classification System for Rubber Products in Automotive Applications
ASTM E1 (2014) Standard Specification for ASTM Liquid-in-Glass Thermometers
ASTM E84 (2020) Standard Test Method for Surface Burning Characteristics of Building Materials
ASTM E814 (2013a; R 2017) Standard Test Method for Fire Tests of Penetration Firestop Systems
ASTM F104 (2011; R 2020) Standard Classification System for Nonmetallic Gasket Materials
ASTM F2389 (2021) Standard Specification for
100% Design Submission
SECTION 23 05 15 Page 4
Pressure-rated Polypropylene (PP) Piping Systems
FLUID SEALING ASSOCIATION (FSA)
FSA-0017 (1995e6) Standard for Non-Metallic
Expansion Joints and Flexible Pipe Connectors Technical Handbook
MANUFACTURERS STANDARDIZATION SOCIETY OF THE VALVE AND FITTINGS
INDUSTRY (MSS)
MSS SP-58 (2018) Pipe Hangers and Supports -
Materials, Design and Manufacture, Selection, Application, and Installation
MSS SP-67 (2017; Errata 1 2017) Butterfly Valves
MSS SP-70 (2011) Gray Iron Gate Valves, Flanged and
Threaded Ends
MSS SP-72 (2010a) Ball Valves with Flanged or Butt-Welding Ends for General Service
MSS SP-80 (2019) Bronze Gate, Globe, Angle and Check
Valves
MSS SP-110 (2010) Ball Valves Threaded, Socket-Welding, Solder Joint, Grooved and Flared Ends
MSS SP-125 (2010) Gray Iron and Ductile Iron In-Line, Spring-Loaded, Center-Guided Check Valves
NSF INTERNATIONAL (NSF)
NSF/ANSI 14 (2020) Plastics Piping System Components and Related Materials
U.S. DEPARTMENT OF DEFENSE (DOD)
MIL-C-18480 (1982; Rev B; Notice 2 2009) Coating
Compound, Bituminous, Solvent, Coal-Tar Base
MIL-DTL-17813 (2009; Rev H; Supp 1 2009; Notice 1 2013)
Expansion Joints, Pipe, Metallic Bellows, General Specification for
U.S. GENERAL SERVICES ADMINISTRATION (GSA)
CID A-A-1922 (Rev A; Notice 3) Shield, Expansion
(Caulking Anchors, Single Lead)
CID A-A-1923 (Rev A; Notice 3) Shield, Expansion (Lag, Machine and Externally Threaded Wedge Bolt Anchors)
CID A-A-1924 (Rev A; Notice 3) Shield, Expansion (Self
100% Design Submission
SECTION 23 05 15 Page 5
Drilling Tubular Expansion Shell Bolt Anchors
CID A-A-1925 (Rev A; Notice 3) Shield Expansion (Nail
Anchors)
CID A-A-55614 (Basic; Notice 2) Shield, Expansion (Non-Drilling Expansion Anchors)
CID A-A-55615 (Basic; Notice 3) Shield, Expansion (Wood
Screw and Lag Bolt Self-Threading Anchors
UNDERWRITERS LABORATORIES (UL)
UL 1479 (2015; Reprint May 2021) Fire Tests of Through-Penetration Firestops
1.2 GENERAL REQUIREMENTS
Section 23 30 00 HVAC AIR DISTRIBUTION applies to work specified in this section
Submit Records of Existing Conditions consisting of the results of Contractor's survey of work area conditions and features of existing structures and facilities within and adjacent to the jobsite.
Commencement of work constitutes acceptance of the existing conditions.
Include with Equipment Foundation Data for piping systems all plan dimensions of foundations and relative elevations, equipment weight and operating loads, horizontal and vertical loads, horizontal and vertical clearances for installation, and size and location of anchor bolts.
Submit Fabrication Drawings for pipes, valves and specialties consisting of fabrication and assembly details to be performed in the factory.
Submit Material, Equipment, and Fixture Lists for pipes, valves and specialties including manufacturer's style or catalog numbers, specification and drawing reference numbers, warranty information, and fabrication site information. Provide a complete list of construction equipment to be used.
Submit Manufacturer's Standard Color Charts for pipes, valves and specialties showing the manufacturer's recommended color and finish selections.
Include with Listing of Product Installations for piping systems identification of at least 5 units, similar to those proposed for use, that have been in successful service for a minimum period of 5 years.
Include in the list purchaser, address of installation, service organization, and date of installation.
Submit Record Drawings for pipes, valves and accessories providing current factual information including deviations and amendments to the drawings, and concealed and visible changes in the work.
Submit Connection Diagrams for pipes, valves and specialties indicating the relations and connections of devices and apparatus by showing the general physical layout of all controls, the interconnection of one system (or portion of system) with another, and internal tubing, wiring, and
100% Design Submission
SECTION 23 05 15 Page 6 other devices.
Submit Coordination Drawings for pipes, valves and specialties showing coordination of work between different trades and with the structural and architectural elements of work. Detail all drawings sufficiently to show overall dimensions of related items, clearances, and relative locations of work in allotted spaces. Indicate on drawings where conflicts or clearance problems exist between various trades.
1.3 SUBMITTALS
Government approval is required for submittals with a "G" or "S" classification. Submittals not having a "G" or "S" classification are for Contractor Quality Control approval. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:
SD-01 Preconstruction Submittals
Material, Equipment, and Fixture Lists; G
SD-02 Shop Drawings
Record Drawings; G
Connection Diagrams; G
Coordination Drawings; G
Fabrication Drawings; G
Installation Drawings; G
SD-03 Product Data
Pipe and Fittings; G
Piping Specialties; G
Valves; G
Miscellaneous Materials; G
Supporting Elements; G
Equipment Foundation Data; G
SD-04 Samples
Manufacturer's Standard Color Charts; G
SD-05 Design Data
Pipe and Fittings; G
Piping Specialties; G
Valves; G
SD-06 Test Reports
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SECTION 23 05 15 Page 7
Hydrostatic Tests; G
Air Tests; G
Valve-Operating Tests; G
Drainage Tests; G
System Operation Tests; G
SD-07 Certificates
Record of Satisfactory Field Operation; G
List of Qualified Permanent Service Organizations; G
Listing of Product Installations; G
Records of Existing Conditions; G
Surface Resistance; G
Shear and Tensile Strengths; G
Temperature Ratings; G
Bending Tests; G
Flattening Tests; G
Transverse Guided Weld Bend Tests; G
SD-10 Operation and Maintenance Data
Operation and Maintenance Manuals; G
1.4 QUALITY ASSURANCE
1.4.1 Material and Equipment Qualifications
Provide materials and equipment that are standard products of manufacturers regularly engaged in the manufacture of such products, which are of a similar material, design and workmanship. Provide standard products in satisfactory commercial or industrial use for 2 years prior to bid opening. The 2-year use includes applications of equipment and materials under similar circumstances and of similar size. Ensure the product has been for sale on the commercial market through advertisements, manufacturers' catalogs, or brochures during the 2 year period.
1.4.2 Alternative Qualifications
Products having less than a two-year field service record are acceptable if a certified record of satisfactory field operation for not less than 6000 hours, exclusive of the manufacturer's factory or laboratory tests, can be shown.
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SECTION 23 05 15 Page 8
1.4.3 Service Support
Ensure the equipment items are supported by service organizations. Submit a certified list of qualified permanent service organizations for support of the equipment which includes their addresses and qualifications.
Select service organizations that are reasonably convenient to the equipment installation and able to render satisfactory service to the equipment on a regular and emergency basis during the warranty period of the contract.
1.4.4 Manufacturer's Nameplate
Provide a nameplate on each item of equipment bearing the manufacturer's name, address, model number, and serial number securely affixed in a conspicuous place; the nameplate of the distributing agent is not acceptable.
1.4.5 Modification of References
In each of the publications referred to herein, consider the advisory provisions to be mandatory, as though the word, "shall" had been substituted for "should" wherever it appears. Interpret references in these publications to the "authority having jurisdiction," or words of similar meaning, to mean the Contracting Officer.
1.4.5.1 Definitions
For the International Code Council (ICC) Codes referenced in the contract documents, advisory provisions are considered mandatory, the word "should" is interpreted as "shall." Reference to the "code official" is interpreted to mean the "Contracting Officer." For Navy owned property, interpret references to the "owner" to mean the "Contracting Officer."
For leased facilities, references to the "owner" is interpreted to mean the "lessor." References to the "permit holder" are interpreted to mean the "Contractor."
1.4.5.2 Administrative Interpretations
For ICC Codes referenced in the contract documents, the provisions of Chapter 1, "Administrator," do not apply. These administrative requirements are covered by the applicable Federal Acquisition Regulations (FAR) included in this contract and by the authority granted to the Officer in Charge of Construction to administer the construction of this project. References in the ICC Codes to sections of Chapter 1, are applied as appropriate by the Contracting Officer and as authorized by his administrative cognizance and the FAR.
1.5 DELIVERY, STORAGE, AND HANDLING
Handle, store, and protect equipment and materials to prevent damage before and during installation in accordance with the manufacturer's recommendations, and as approved by the Contracting Officer. Replace damaged or defective items.
1.6 ELECTRICAL REQUIREMENTS
Furnish motors, controllers, disconnects and contactors with their respective pieces of equipment. Ensure motors, controllers, disconnects
100% Design Submission
SECTION 23 05 15 Page 9 and contactors conform to and have electrical connections provided under Section 26 20 00 INTERIOR DISTRIBUTION SYSTEM. Furnish internal wiring for components of packaged equipment as an integral part of the equipment.
Extended voltage range motors is not permitted. Provide controllers and contactors with a maximum of 120 volt control circuits, and auxiliary contacts for use with the controls furnished. When motors and equipment furnished are larger than sizes indicated, include the cost of additional electrical service and related work under the section that specified that motor or equipment. Provide power wiring and conduit for field installed equipment under and conform to the requirements of Section 26 20 00
INTERIOR DISTRIBUTION SYSTEM.
1.7 INSTRUCTION TO GOVERNMENT PERSONNEL
When specified in other sections, furnish the services of competent instructors to give full instruction to the designated Government personnel in the adjustment, operation, and maintenance, including pertinent safety requirements, of the specified equipment or system.
Provide instructors thoroughly familiar with all parts of the installation and trained in operating theory as well as practical operation and maintenance work.
Give instruction during the first regular work week after the equipment or system has been accepted and turned over to the Government for regular operation. The number of man-days (8 hours per day) of instruction furnished is as specified in the individual section. When more than 4 man-days of instruction are specified, use approximately half of the time for classroom instruction. Use other time for instruction with the equipment or system.
When significant changes or modifications in the equipment or system are made under the terms of the contract, provide additional instruction to acquaint the operating personnel with the changes or modifications.
1.8 ACCESSIBILITY
Install all work so that parts requiring periodic inspection, operation, maintenance, and repair are readily accessible. Install concealed valves, expansion joints, controls, dampers, and equipment requiring access, in locations freely accessible through access doors.
PART 2 PRODUCTS
2.1 PIPE AND FITTINGS
Submit equipment and performance data for pipe and fittings consisting of corrosion resistance, life expectancy, gage tolerances, and grade line analysis. Submit design analysis and calculations consisting of surface resistance, rates of flow, head losses, inlet and outlet design, required radius of bend, and pressure calculations. Also include in data pipe size, shape, and dimensions, as well as temperature ratings, vibration and thrust limitations minimum burst pressures, shut-off and non-shock pressures and weld characteristics.
2.1.1 Type BCS, Black Carbon Steel
Ensure pipe 1/8 through 12 inches is Schedule 40 black carbon steel, conforming to ASTM A53/A53M.
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SECTION 23 05 15 Page 10
Ensure pipe 1/8 through 10 inches is Schedule 40 seamless or electric-resistance welded black carbon steel, conforming to ASTM A53/A53M, Type E, Grade B (electric-resistance welded). Grade A should be used for permissible field bending, in both cases.
Ensure pipe 12 through 24 inches is 0.375-inch wall seamless black carbon steel, conforming to ASTM A53/A53M, Type E, Grade B (electric-resistance welded).
Ensure fittings 2 inches and under are 150-pounds per square inch, gage (psig) working steam pressure (wsp) banded black malleable iron screwed, conforming to ASTM A197/A197M and ASME B16.3.
Ensure unions 2 inches and under are 250 pounds per square inch, wsp female, screwed, black malleable iron with brass-to-iron seat, and ground joint, conforming to ASME B16.39.
Ensure fittings 2-1/2 inches and over are Steel butt weld, conforming to ASTM A234/A234M and ASME B16.9 to match pipe wall thickness.
Ensure flanges 2-1/2 inches and over are 150-pound forged-steel conforming to ASME B16.5, welding neck to match pipe wall thickness.
2.1.2 Type BCS-125, 125-psi Service
Ensure pipe 1/8 through 1-1/2 inches is Schedule 40 steam, Schedule 80 condensate, furnace butt weld, black carbon steel, conforming to ASTM A53/A53M, Type F (furnace butt welded, continuous welded) and
ASME B36.10M.
Ensure pipe 2 through 10 inches is Schedule 40 steam, Schedule 80 condensate, seamless or electric-resistance welded black carbon steel, conforming to ASTM A53/A53M Type E, Grade B (electric-resistance welded) and ASME B36.10M.
Ensure pipe 12 through 24 inches is 0.375-inch wall, electric-resistance welded black carbon steel, conforming to ASTM A53/A53M Type E, Grade B (electric-resistance welded).
Ensure fittings 2 inches and under are 125-psig wsp, cast iron, screwed end, conforming to ASTM A126 Class A and ASME B16.4.
Ensure fittings 2 inches and under are 150-psig wsp banded black malleable iron screwed, conforming to ASTM A197/A197M and ASME B16.3.
Ensure fittings 1 through 2 inches are 2,000-or 3,000-psi water, oil, or gas (wog) to match pipe wall, forged carbon steel socket weld, conforming to ASTM A105/A105M and ASME B16.11.
Ensure fittings 2 inches and under are 125-psig wsp, cast iron, screwed end, conforming to ASTM A126 Class A and ASME B16.4.
Ensure fittings 2-1/2 inches and over are wall thickness to match pipe, long radius butt weld, black carbon steel, conforming to ASTM A234/A234M, Grade WPB and ASME B16.9.
Ensure couplings 2 inches and under are commercial standard weight for Schedule 40 pipe and commercial extra heavy weight for Schedule 80 pipe, black carbon steel where threaded, and 2,000-or 3,000-psi wog forged
100% Design Submission
SECTION 23 05 15 Page 11 carbon steel, conforming to ASTM A105/A105M and ASME B16.11, where welded.
Ensure flanges 2-1/2 inches and over are 150-pound, forged carbon-steel welding neck, with raised face or flat face and concentric serrated finish, conforming to ASTM A105/A105M and ASME B16.5.
Conform grooved pipe couplings and fittings in accordance with paragraph
GROOVED PIPE COUPLINGS AND FITTINGS.
2.1.3 Type GCS, Galvanized Carbon Steel
Ensure pipe 1/2 through 10 inches, and where indicated is Schedule 40 seamless or electric-resistance welded galvanized steel conforming to ASTM A53/A53M, Type E, Grade B (electric-resistance welded) or Type S (seamless).
Ensure pipe 12 inches and over is 0.375-inch wall, seamless, galvanized steel, conforming to ASTM A53/A53M, Grade B.
Ensure fittings 2 inches and under are 150-psig wsp banded galvanized malleable iron screwed, conforming to ASTM A197/A197M and ASME B16.3.
Ensure unions 2 inches and under are 150-psig wsp female, screwed, galvanized malleable iron with brass-to-iron seat and ground joint.
Ensure fittings 2-1/2 inches and over are 125-psig wsp cast-iron flanges and flanged fittings, conforming to ASTM A126, Class A and ASME B16.1.
Conform grooved pipe couplings and fittings in accordance with paragraph
GROOVED PIPE COUPLINGS AND FITTINGS.
As an option, use 150-psig wsp banded galvanized malleable iron screwed fittings, conforming to ASTM A197/A197M and ASME B16.3.
2.1.4 Type CPR, Copper
2.1.4.1 Type CPR-A, Copper Above Ground
Ensure tubing 2 inches and under is seamless copper tubing, conforming to ASTM B88, Type L (hard-drawn for all horizontal and all exposed vertical lines, annealed for concealed vertical lines).
Ensure fittings 2 inches and under are 150-psig wsp wrought-copper solder joint fittings conforming to ASME B16.22.
Ensure unions 2 inches and under are 150-psig wsp wrought-copper solder joint, conforming to ASME B16.22.
Provide brazing rod with Classification BCuP-5, conforming to
AWS A5.8/A5.8M.
Use solder, alloy Sb-5, conforming to ASTM B32.
2.1.5 Polypropylene Pipe
Pipe is manufactured from a PP-R resin meeting the short-term properties and long-term strength requirements of ASTM F2389. Pipe is made in a three layer extrusion process. Piping contains a fiber layer (faser) to restrict thermal expansion. Pipe complies with the rated pressure
100% Design Submission
SECTION 23 05 15 Page 12 requirements of ASTM F2389. Ensure layers are incorporated in the pipe wall to limit thermal expansion to 2 1/4-inches per 100 F per 100-ft. If the hydronic system includes ferrous components, an oxygen barrier is required in pipe wall.
Ensure pipe is certified by NSF International as complying with NSF/ANSI 14, and ASTM F2389.
Ensure pipe wrap or insulation meets the requirements of ASTM E84. Ensure the system has a Flame Spread Classification of less than 25 and Smoke Development rating of less than 50.
Where pipe is exposed to direct UV light for more than 30 days, provide a Factory applied, UV-resistant coating or alternative UV protection.
2.1.6 Grooved Pipe Couplings and Fittings
Provide housing for all couplings, fabricated in two or more parts, of black, ungalvanized malleable iron castings. Ensure coupling gasket is molded synthetic rubber, conforming to ASTM D2000. Ensure coupling bolts are oval-neck, track-head type, with hexagonal heavy nuts conforming to
ASTM A183.
Fabricate all pipe fittings used with couplings of black, ungalvanized malleable iron castings. Where a manufacturer's standard-size malleable iron fitting pattern is not available, approved fabricated fittings may be used.
Fabricate fittings from Schedule 40 or 0.75-inch wall ASTM A53/A53M, Grade B seamless steel pipe; long radius seamless welding fittings with wall thickness to match pipe, conforming to ASTM A234/A234M and ASME B16.9.
2.2 PIPING SPECIALTIES
Submit equipment and performance data for piping specialties consisting of corrosion resistance, life expectancy, gage tolerances, and grade line analysis. Submit design analysis and calculations consisting of surface resistance, rates of flow, head losses, inlet and outlet design, required radius of bend, and pressure calculations. Also include in data pipe size, shape, and dimensions, as well as temperature ratings, vibration and thrust limitations minimum burst pressures, shut-off and non-shock pressures and weld characteristics.
2.2.1 Air Vents
Provide manual air vents using 3/8-inch globe valves.
Provide automatic air vents on pumps, mains, and where indicated using ball-float construction. Ensure the vent inlet is not less than 3/4-inch ips and the outlet not less than 1/4-inch ips. Orifice size is 1/8 inch.
Provide corrosion-resistant steel trim conforming to ASTM A276/A276M. Fit vent with try-cock. Ensure vent discharges air at any pressure up to 150 psi. Ensure outlet is copper tube routed.
2.2.2 Dielectric Connections
Electrically isolate dissimilar pipe metals from each other by couplings, unions, or flanges commercially manufactured for that purpose and rated for the service pressure and temperature.
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SECTION 23 05 15 Page 13
2.2.3 Expansion Vibration Isolation Joints
Construct single or multiple arch-flanged expansion vibration isolation joints of steel-ring reinforced chloroprene-impregnated cloth materials.
Design joint to absorb the movement of the pipe sections in which installed with no detrimental effect on the pipe or connected equipment.
Back flanges with ferrous-metal backing rings. Provide control rod assemblies to restrict joint movement. Coat all nonmetallic exterior surfaces of the joint with chlorosulphonated polyethylene. Provide grommets in limit bolt hole to absorb noise transmitted through the bolts.
Ensure joints are suitable for continuous-duty working temperature of at least 250 degrees F.
Fill arches with soft chloroprene.
Ensure joint, single-arch, movement limitations and size-related, pressure characteristics conform to FSA-0017.
2.2.4 Flexible Pipe
Construct flexible pipe vibration and pipe-noise eliminators of wire-reinforced, rubber-impregnated cloth and cord materials and be flanged. Back the flanges with ferrous-metal backing rings. Ensure service pressure-rating is a minimum 1.5 times actual service, with surge pressure at 180 degrees F.
Construct flexible pipe vibration and pipe noise eliminators of wire-reinforced chloroprene-impregnated cloth and cord materials. Ensure the pipe is flanged. Provide all flanges backed with ferrous-metal backing rings. Coat nonmetallic exterior surfaces of the flexible pipe with an acid- and oxidation-resistant chlorosulphonated polyethylene.
Rate the flexible pipe for continuous duty at 130 psi and 250 degrees F.
Ensure unit pipe lengths, face-to-face, are not less than the following:
INSIDE DIAMETER UNIT PIPE LENGTH
To 2-1/2 inches, inclusive 12 inches
3 to 4 inches, inclusive 18 inches
5 to 12 inches, inclusive 24 inches
3.2.1 Flexible Metallic Pipe
Ensure flexible pipe is the bellows-type with wire braid cover and designed, constructed, and rated in accordance with the applicable requirements of ASME B31.3.
Minimum working pressure rating is 100 psi at 300 degrees F.
Ensure minimum burst pressure is four times working pressure at 300 degrees F. Bellows material is AISI Type 316L corrosion-resistant steel.
Ensure braid is AISI 300 series corrosion-resistant steel wire.
Ensure welded end connections are Schedule 80 carbon steel pipe, 100% Design Submission
SECTION 23 05 15 Page 14 conforming to ASTM A106/A106M, Grade B.
Provide threaded end connections; hex-collared Schedule 40, AISI Type 316L corrosion-resistant steel, conforming to ASTM A312/A312M.
3.2.2 Flexible Metal Steam Hose
Provide a bellows type hose with wire braid cover and designed, constructed, and rated in accordance with the applicable requirements of
ASME B31.3.
Ensure the working steam pressure rating is 125 psi at 500 degrees F.
Ensure minimum burst pressure is four times working steam pressure at 300 degrees F.
Ensure bellows material is AISI Type 316L corrosion-resistant steel.
Braid is AISI Type 300-series corrosion-resistant steel wire.
Provide welded end connections; Schedule 80 carbon steel pressure tube, conforming to ASTM A106/A106M, Grade B.
Provide threaded end connections; hex-collared Schedule 40, AISI Type 316L corrosion-resistant steel, conforming to ASTM A312/A312M.
Ensure flanged end connection rating and materials conform to specifications for system primary-pressure rating.
3.2.3 Metallic Expansion Joints
Provide metallic-bellows expansion joints conforming to MIL-DTL-17813.
Provide Type I expansion joints; (corrugated bellows, unreinforced), Class 1 (single bellows, expansion joint).
Design and construct joints to absorb all of the movements of the pipe sections in which installed, with no detrimental effect on pipe or supporting structure.
Rate, design, and construct joints for pressures to 125 psig and temperatures to 500 degrees F.
Ensure joints have a designed bursting strength in excess of four times their rated pressure.
Ensure joints are capable of withstanding a hydrostatic test of 1.5 times their rated pressure while held at their uncompressed length without leakage or distortion that may adversely affect their life cycle.
Ensure life expectancy is not less than 10,000 cycles.
Ensure movement capability of each joint exceeds calculated movement of piping by 100 percent.
Provide bellows and internal sleeve material of AISI Type 304, 304L, or 321 corrosion-resistant steel.
End connections require no field preparation other than cleaning.
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Butt weld end preparation of expansion joints conform to the same codes and standards requirements as applicable to the piping system materials at the indicated joint location.
Flanges of flanged-end expansion joints conforms to the same codes and standard requirements as are applicable to companion flanges specified for the given piping system at the indicated joint location.
Provide joints, 2-1/2 inches and smaller, with internal guides and limit stops.
Provide joints, 3 inches and larger, with removable external covers, internal sleeves, and purging connection. Size sleeves to accommodate lateral clearance required, with minimum reduction of flow area, and with oversized bellows where necessary. When a sleeve requires a gasket as part of a locking arrangement, provide the gasket used by the manufacturer. Joints without purging connection may be provided; however, remove these from the line prior to, or not installed until, cleaning operations are complete.
Provide the cylindrical end portion of the reinforced bellows element with a thrust sleeve of sufficient thickness to bring that portion within applicable code-allowable stress. Provide 360 degrees support for the element and end-reinforcing ring with the sleeve.
Ensure expansion joints have four, equidistant, permanent tram points clearly marked on each joint end. Locate points to prevent obliteration during installation. Include distance between tram points indicating installed lengths in shop drawings. Overall dimension after joint installation is subject to approval from the Contracting Officer.
Ensure each expansion joint has adjustable clamps or yokes provided at quarter points, straddling the bellows. Overall joint length is set by the manufacturer to maintain joints in manufacturer's recommended position during installation.
Permanently and legibly mark each joint with the manufacturer's name or trademark and serial number; the size, series, or catalog number; bellows material; and directional-flow arrow.
3.2.4 Pressure Gages
Ensure pressure gages conform to ASME B40.100 and to requirements specified herein. Pressure-gage size is 3-1/2 inches nominal diameter.
Ensure case is corrosion-resistant steel, conforming to any of the AISI 300 series of ASTM A6/A6M, with an ASM No. 4 standard commercial polish or better. Equip gages with adjustable red marking pointer and damper-screw adjustment in inlet connection. Align service-pressure reading at midpoint of gage range. Ensure all gages are Grade B or better and be equipped with gage isolators.
Fit steam gages with black steel syphons and steam service pressure-rated gage cocks or valves.
3.2.5 Sight-Flow Indicators
Construct sight-flow indicators for pressure service on 3-inch ips and smaller of bronze with specially treated single- or double-glass sight windows and have a bronze, nylon, or tetrafluoroethylene rotating flow
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SECTION 23 05 15 Page 16 indicator mounted on an AISI Type 304 corrosion-resistant steel shaft.
Body may have screwed or flanged end. Provide pressure- and temperature-rated assembly for the applied service. Flapper flow-type indicators are not acceptable.
3.2.6 Sleeve Couplings
Sleeve couplings for plain-end pipe consist of one steel middle ring, two steel followers, two chloroprene or Buna-N elastomer gaskets, and the necessary steel bolts and nuts.
3.2.7 Thermometers
Ensure thermometers conform to ASTM E1, except for being filled with a red organic liquid. Provide an industrial pattern armored glass thermometer, (well-threaded and seal-welded). Ensure thermometers installed 6 feet or higher above the floor have an adjustable angle body. Ensure scale is not less than 7 inches long and the case face is manufactured from manufacturer's standard polished aluminum or AISI 300 series polished corrosion-resistant steel. Thermometer range is 0 to 180 degrees.
Provide thermometers with nonferrous separable wells. Provide lagging extension to accommodate insulation thickness.
3.2.8 Line Strainers, Water Service
Provide Y-type strainers with removable basket. Ensure strainers in sizes 2-inch ips and smaller have screwed ends; in sizes 2-1/2-inch ips and larger, strainers have flanged ends. Ensure body working-pressure rating exceeds maximum service pressure of installed system by at least 50 percent. Ensure body has cast-in arrows to indicate direction of flow.
Ensure all strainer bodies fitted with screwed screen retainers have straight threads and gasketed with nonferrous metal. For strainer bodies 2-1/2-inches and larger, fitted with bolted-on screen retainers, provide offset blowdown holes. Fit all strainers larger than 2-1/2-inches with manufacturer's standard ball-type blowdown valve. Ensure body material is cast bronze conforming to ASTM B62. Where system material is nonferrous, use nonferrous metal for the metal strainer body material.
Ensure minimum free-hole area of strainer element is equal to not less than 3.4 times the internal area of connecting piping. Strainer screens perforation size is not to exceed 0.045-inch. Ensure strainer screens have finished ends fitted to machined screen chamber surfaces to preclude bypass flow. Strainer element material is AISI Type 304 corrosion-resistant steel.
3.2.9 Line Strainers, Steam Service
Provide Type Y strainers with removable strainer element.
Use flanged body end connections for all valves larger than 2 inches, unless butt weld ends are specified. Use socket weld for sizes 2 inches and under to suit specified piping system end connection and maintenance requirements or be welded.
For strainers located in tunnels, trenches, manholes, and valve pits, use welded end connections.
Body working steam pressure rating is the same as the primary valve rating for system in which strainer is installed, except where welded end
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SECTION 23 05 15 Page 17 materials requirements result in higher pressure ratings. Ensure body has integral cast or forged arrows to indicate direction of flow. Provide strainer bodies with blowdown valves that have discharge end plugged with a solid metal plug. Make closure assembly with tetrafluoroethylene tape.
Ensure bodies fitted with bolted-on screen retainers have offset blowdown holes.
Body materials are manufacturer's standard metallurgical equivalents for service pressures of 150-psi wsp and greater, and for lower pressure ratings where welding is required.
Ensure minimum free-hole area of strainer element is equal to not less than 3.4 times the internal area of connecting piping. Strainer screens perforation size is not to exceed 0.020 inch or equivalent wire mesh.
Strainer screens have finished ends fitted to machined screen chamber surfaces to preclude bypass flow. Strainer element material is AISI Type 304 corrosion-resistant steel and fitted with backup screens where necessary to prevent collapse.
2.3 VALVES
Submit equipment and performance data for valves consisting of corrosion resistance and life expectancy. Submit design analysis and calculations consisting of rates of flow, head losses, inlet and outlet design, and pressure calculations. Also include in data, pipe dimensions, as well as temperature ratings, vibration and thrust limitations, minimum burst pressures, shut-off and non-shock pressures and weld characteristics.
Polypropylene valves will comply with the performance requirements of ASTM F2389. Valves shall conform to ASME B16.34.
2.3.1 Ball and Butterfly Valves
Ensure ball valves conform to MSS SP-72 for flanged valves and MSS SP-110 for screwed-end valves for Figure 1 piece body, vertically split body, top entry three piece body and are rated for service at not less than 175 psig at 200 degrees F. For valve bodies in sizes 2 inches and smaller, use screwed-end connection-type constructed of Class A copper alloy. For valve bodies in sizes 2-1/2 inches and larger, use flanged-end connection type, constructed of Class D material. Balls and stems of valves 2 inches and smaller are manufacturer's standard with hard chrome plating finish.
Balls and stems of valves 2-1/2 inches and larger are manufacturer's standard Class C corrosion-resistant steel alloy with hard chrome plating. Balls of valves 6 inches and larger may be Class D with 900 Brinell hard chrome plating. Ensure valves are suitable for flow from either direction and seal equally tight in either direction. Valves with ball seals held in place by spring washers are not acceptable. Ensure all valves have adjustable packing glands. Seats and seals are fabricated from tetrafluoroethylene.
Ensure butterfly valves conform to MSS SP-67 and are the wafer type for mounting between specified flanges. Ensure valves are rated for 150-psig shutoff and nonshock working pressure. Select bodies of cast ferrous metal conforming to ASTM A126, Class B, and to ASME B16.1 for body wall thickness. Seats and seals are fabricated from resilient elastomer designed for field removal and replacement.
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2.3.2 Drain, Vent, and Gage Cocks
Provide lever handle drain, vent, and gage cocks, ground key type, with washer and screw, constructed of polished ASTM B62 bronze, and rated 125-psi wsp. Ensure end connections are rated for specified service pressure.
Ensure pump vent cocks, and where spray control is required, are UL umbrella-hood type, constructed of manufacturer's standard polished brass.
Ensure cocks are 1/2-inch ips male, end threaded, and rated at not less than 125 psi at 225 degrees F.
2.3.3 Gate Valves (GAV)
Ensure gate valves 2 inches and smaller conform to MSS SP-80. For valves located in tunnels, equipment rooms, factory-assembled equipment, and where indicated use union-ring bonnet, screwed-end type. Make packing of non-asbestos type materials. Use rising stem type valves.
Ensure gate valves 2-1/2 inches and larger, are Type I, (solid wedge disc, tapered seats, steam rated); Class 125 (125-psig steam-working pressure at 353 degrees F saturation); and 200-psig, wog (nonshock), conforming to MSS SP-70 and to requirements specified herein. Select flanged valves, with bronze trim and outside screw and yoke (OS&Y) construction. Make packing of non-asbestos type materials.
2.3.4 Globe and Angle Valves (GLV-ANV)
Ensure globe and angle valves 2 inches and smaller, are 125-pound, 125-psi conforming to MSS SP-80 and to requirements specified herein. For valves located in tunnels, equipment rooms, factory-assembled equipment, and where indicated, use union-ring bonnet, screwed-end type. Ensure disc is free to swivel on the stem in all valve sizes. Composition seating-surface disc construction may be substituted for all metal-disc construction. Make packing of non-asbestos type materials. Ensure disk and packing are suitable for pipe service installed.
Ensure globe and angle valves, 2-1/2 inches and larger, are cast iron with bronze trim. Ensure valve bodies are cast iron conforming to ASTM A126, Class A, as specified for Class 1 valves under MSS SP-80. Select flanged valves in conformance with ASME B16.1. Valve construction is outside screw and yoke (OS&Y) type. Make packing of non-asbestos type materials.
2.3.5 Standard Check Valves (SCV)
Ensure standard check valves in sizes 2 inches and smaller are 125-psi swing check valves except as otherwise specified. Provide lift checks where indicated. Ensure swing-check pins are nonferrous and suitably hard for the service. Select composition type discs. Ensure the swing-check angle of closure is manufacturer's standard unless a specific angle is needed.
Use cast iron, bronze trim, swing type check valves in sizes 2-1/2 inches and larger. Ensure valve bodies are cast iron, conforming to ASTM A126, Class A and valve ends are flanged in conformance with ASME B16.1.
Swing-check pin is AISI Type or approved equal corrosion-resistant steel.
Angle of closure is manufacturer's standard unless a specific angle is needed. Ensure valves have bolted and gasketed covers.
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Provide check valves with external spring-loaded, positive-closure devices and valve ends are mechanical joint.
2.3.6 Nonslam Check Valves (NSV)
Provide check valves at pump discharges in sizes 2 inches and larger with nonslam or silent-check operation conforming to MSS SP-125. Select a valve disc or plate that closes before line flow can reverse to eliminate slam and water-hammer due to check-valve closure. Ensure valve is Class 125 rated for 200-psi maximum, nonshock pressure at 150 degrees F in sizes to 12 inches. Use valves that are fitted with flanges conforming to ASME B16.1. Valve body may be cast iron, or equivalent strength ductile iron. Select disks using manufacturer's standard bronze, aluminum bronze, or corrosion-resistant steel. Ensure pins, springs, and miscellaneous trim are manufacturer's standard corrosion-resistant steel. Disk and shaft seals are Buna-N elastomer tetrafluoroethylene.
2.4 MISCELLANEOUS MATERIALS
Submit equipment and performance data for miscellaneous materials consisting of corrosion resistance, life expectancy, gage tolerances, and grade line analysis.
2.4.1 Bituminous Coating
Ensure the bituminous coating is a solvent cutback, heavy-bodied material to produce not less than a 12-mil dry-film thickness in one coat, and is recommended by the manufacturer to be compatible with factory-applied coating and rubber joints.
For previously coal-tar coated and uncoated ferrous surfaces underground, use bituminous coating solvent cutback coal-tar type, conforming to
MIL-C-18480.
2.4.2 Bolting
Ensure flange and general purpose bolting is hex-head and conforms to ASTM A307, Grade B (bolts, for flanged joints in piping systems where one or both flanges are cast iron). Heavy hex-nuts conform to ASTM A563.
Square-head bolts and nuts are not acceptable. Ensure threads are coarse-thread series.
2.4.3 Elastomer Caulk
Use two-component polysulfide- or polyurethane-base elastomer caulking material, conforming to ASTM C920.
2.4.4 Escutcheons
Manufacture escutcheons from nonferrous metals and chrome-plated except when AISI 300 series corrosion-resistant steel is provided. Ensure metals and finish conforms to ASME A112.19.2/CSA B45.1.
Use one-piece escutcheons where mounted on chrome-plated pipe or tubing, and one-piece of split-pattern type elsewhere. Ensure all escutcheons have provisions consisting of setscrews for maintaining a fixed position against a surface.
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2.4.5 Flashing
Ensure sheetlead conforms to ASTM B749, UNS Alloy Number L50049 (intended for use in laboratories and shops in general application).
Ensure sheet copper conforms to ASTM B370 and be not less than 16 ounces per square foot weight.
2.4.6 Flange Gaskets
Provide compressed non-asbestos sheets, conforming to ASTM F104, coated on both sides with graphite or similar lubricant, with nitrile composition, binder rated to 750 degrees F.
2.4.7 Grout
Provide shrink-resistant grout as a premixed and packaged metallic-aggregate, mortar-grouting compound conforming to ASTM C404 and
ASTM C476.
Ensure shrink-resistant grout is a combination of pre-measured and packaged epoxy polyamide or amine resins and selected aggregate mortar grouting compound conforming to the following requirements:
Tensile strength 1,900 psi, minimum
Compressive strength ASTM C109/C109M 14,000 psi, minimum
Shrinkage, linear 0.00012 inch per inch, maximum
Water absorption ASTM C67/C67M 0.1 percent, maximum
Bond strength to 1,000 psi, minimum steel in shear minimum
2.4.8 Pipe Thread Compounds
Use polytetrafluoroethylene tape not less than 2 to 3 mils thick in potable and process water and in chemical systems for pipe sizes to and including 1-inch ips. Use polytetrafluoroethylene dispersions and other suitable compounds for all other applications upon approval by the Contracting Officer; however, do not use lead-containing compounds in potable water systems.
2.5 SUPPORTING ELEMENTS
Submit equipment and performance data for the supporting elements consisting of corrosion resistance, life expectancy, gage tolerances, and grade line analysis.
Provide all necessary piping systems and equipment supporting elements, including but not limited to: building structure attachments;
supplementary steel; hanger rods, stanchions, and fixtures; vertical pipe attachments; horizontal pipe attachments; anchors; guides; and spring-cushion, variable, or constant supports. Ensure supporting elements are suitable for stresses imposed by systems pressures and temperatures and natural and other external forces normal to this facility without damage to supporting element system or to work being supported.
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Ensure supporting elements conform to requirements of ASME B31.3, and MSS SP-58, except as noted.
Ensure attachments welded to pipe are made of materials identical to that of pipe or materials accepted as permissible raw materials by referenced code or standard specification.
Ensure supporting elements exposed to weather are hot-dip galvanized or stainless steel. Select materials of such a nature that their apparent and latent-strength characteristics are not reduced due to galvanizing process. Electroplate supporting elements in contact with copper tubing with copper.
Type designations specified herein are based on MSS SP-58. Ensure masonry anchor group-, type-, and style-combination designations are in accordance with CID A-A-1922, CID A-A-1923, CID A-A-1924, CID A-A-1925 , CID A-A-55614, and CID A-A-55615. Provide support elements, except for supplementary steel, that are cataloged, load rated, commercially manufactured products.
2.5.1 Building Structure Attachments
2.5.1.1 Anchor Devices, Concrete and Masonry
Ensure anchor devices conform to CID A-A-1922, CID A-A-1923, CID A-A-1924, CID A-A-1925, CID A-A-55614, and CID A-A-55615
For cast-in, floor mounted, equipment anchor devices, provide adjustable positions.
Provide built-in masonry anchor devices.
Do not use powder-actuated anchoring devices to support any mechanical systems components.
2.5.1.2 Beam Clamps
Ensure beam clamps are center-loading MSS SP-58 Type 20.
2.5.1.3 C-Clamps
Do not use C-clamps.
2.5.1.4 Inserts, Concrete
Use concrete MSS SP-58 Type 18 inserts When applied to piping in sizes 2 inches ips and larger and where otherwise required by imposed loads, insert and wire a 1-foot length of 1/2-inch reinforcing rod through wing slots. Submit proprietary-type continuous inserts for approval.
2.5.2 Horizontal Pipe Attachments
2.5.2.1 Single Pipes
Support piping in sizes to and including 2-inch ips by MSS SP-58 Type 6 solid malleable iron pipe rings, except that, use split-band-type rings in sizes up to 1-inch ips.
Support piping in sizes through 8-inch ips inclusive by MSS SP-58 Type 1 attachments.
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Use MSS SP-58 Type 1 and Type 6 assemblies on vapor-sealed insulated piping and have an inside diameter larger than pipe being supported to provide adequate clearance during pipe movement.
Where thermal movement of a point in a piping system 4 inches and larger would cause a hanger rod to deflect more than 4 degrees from the vertical or where a horizontal point movement exceeds 1/2 inch, use MSS SP-58 Type 44 through 46 pipe rolls.
Support piping in sizes larger than 8-inch ips with MSS SP-58 Type 44 through 46 pipe rolls.
Use MSS SP-58 Type 40 shields on all insulated piping. Ensure area of the supporting surface is such that compression deformation of insulated surfaces does not occur. Roll away longitudinal and transverse shield edges from the insulation.
Provide insulated piping without vapor barrier on roll supports with MSS SP-58 Type 39 saddles.
Provide spring supports as indicated.
2.5.2.2 Parallel Pipes
Use trapeze hangers fabricated from structural steel shapes, with U-bolts, in congested areas and where multiple pipe runs occur. Ensure structural steel shapes conform to supplementary steel requirements.
2.5.3 Vertical Pipe Attachments
Ensure vertical pipe…
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