Attachment_16_-_Specifications_revised_and_new_issued.pdf

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VA Livermore Phase B, Construct Community Based Outpatient Clinic, and Central Utility Plant, Stockton, CA
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W91238-18-R-0056
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Attachment 16 - Specifications: Revised and New

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Attachment_17_Construction_Temporary_Utilities_Service_Point-of-Connection,_City_of_Stockton.pdf PDF
Attachment_18_-_Wage_Determination.pdf PDF
Attachment_15,_Re-issued_Drawings.pdf PDF
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CBO-_CUP_-_Siemens_Brand_Name_J&A.pdf PDF
Attachment_(13)_Re-Issued_Specifications_01_50_01,Revised_8Nov18(LT8Nov18).pdf PDF
W9123818R0056_Amendment_0002.pdf PDF
W9123818R0056_Conformed_Copy_Amendment.pdf PDF
Attachment_14__Re-issued_Drawings.pdf PDF
Attachment_(12)_Specifications-working.pdf PDF
Attachment_(11)_Office_Complex_and_Contractor_Laydown_(05NOV).pdf PDF
A03.10_Final_Stockton_Phased_B_Combined_JA_for_posting_Redacted.pdf PDF
Attachment_(10)_RMS_Submittal_Register(5Nov18).xlsx XLSX spreadsheet
Attachment_(09)_AE_Drawing_Revisions_.pdf PDF
W9123818R0056_Amendment_0001.pdf PDF
Phase_B_Site_Visit_Sign-In_Sheets.pdf PDF
W9123818R0056_Stockton_CBOC_and_CUP_Solicitation.pdf PDF
ATTACHMENT_7_-_APPENDIX_B_-_EQUIPMENT_CUT_SHEETS.pdf PDF
ATTACHMENT_5_-_DRAWINGS_VOLUME_B3.pdf PDF
ATTACHMENT_1_-_STATEMENT_OF_WORK.pdf PDF
ATTACHMENT_3_-_DRAWINGS_VOLUME_B1.pdf PDF
ATTACHMENT_6_-_APPENDIX_A_-_GEOTECHNICAL_ENGINEERING_REPORT.pdf PDF
ATTACHMENT_2_-_SPECIFICATIONS.pdf PDF
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Dept. of Veterans Affairs – VA Livermore Re-Alignment and Closure

Part B, Stockton CBOC 09-01-15

DESIGN CLARIFICATIONS AM-0003 19 NOV 18

22 11 00 - 1

SECTION 22 11 00

FACILITY WATER DISTRIBUTION

PART 1 - GENERAL

1.1 DESCRIPTION

A. Domestic water systems, cold water, hot water, hot water return, chilled cold water, and dental water, including piping, equipment and all necessary accessories as designated in this section.

B. A complete listing of all acronyms and abbreviations are included in

Section 22 05 11, COMMON WORK RESULTS FOR PLUMBING.

1.2 RELATED WORK

A. Section 01 00 00, GENERAL REQUIREMENTS.

B. Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES.

C. Section 01 81 13, SUSTAINABLE CONSTRUCTION REQUIREMENTS.

D. Section 01 91 00, GENERAL COMMISSIONING REQUIREMENTS.

E. Section 07 84 00, FIRESTOPPING.

F. Section 07 92 00, JOINT SEALANTS.

G. Section 09 91 00, PAINTING.

H. Section 13 05 41, SEISMIC RESTRAINT REQUIREMENTS FOR NON-STRUCTURAL

COMPONENTS: Seismic Restraint.

I. Section 22 05 11, COMMON WORK RESULTS FOR PLUMBING.

J. Section 22 07 11, PLUMBING INSULATION.

K. SECTION 22 08 00, COMMISSIONING OF PLUMBING SYSTEMS.

L. SECTION 22 61 13.74, DENTAL COMPRESSED-AIR PIPING

M. SECTION 22 62 19.74, DENTAL VACUUM AND EVACUATION EQUIPMENT

1.3 APPLICABLE PUBLICATIONS

A. The publications listed below form a part of this specification to the extent referenced. The publications are referenced in the text by the basic designation only.

B. American Society of Mechanical Engineers (ASME):

A13.1-2007 (R2013)......Scheme for Identification of Piping Systems

B16.11-2011.............Forged Fittings, Socket-Welding and Threaded

B16.15-2013 ............Cast Copper Alloy Threaded Fittings: Classes

125 and 250

B16.18-2012.............Cast Copper Alloy Solder Joint Pressure

Fittings

B16.22-2013.............Wrought Copper and Copper Alloy Solder-Joint

Pressure Fittings

DESIGN CLARIFICATIONS AM-0003 19 NOV 18

22 11 00 - 2

B16.24-2011.............Cast Copper Alloy Pipe Flanges and Flanged

Fittings: Classes 150, 300, 600, 900, 1500, and

B16.51-2013.............Copper and Copper Alloy Press-Connect Fittings

ASME Boiler and Pressure Vessel Code -

BPVC Section IX-2015....Welding, Brazing, and Fusing Qualifications

C. American Society of Sanitary Engineers (ASSE):

1010-2004...............Performance Requirements for Water Hammer

Arresters

D. American Society for Testing and Materials (ASTM):

A269/A269M-2014e1.......Standard Specification for Seamless and Welded

Austenitic Stainless Steel Tubing for General

Service

A312/A312M-2015.........Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless

Steel Pipes

A403/A403M-2014.........Standard Specification for Wrought Austenitic

Stainless Steel Piping Fittings

A536-1984 (R2014).......Standard Specification for Ductile Iron

Castings

A733-2013...............Standard Specification for Welded and Seamless

Carbon Steel and Austenitic Stainless Steel

Pipe Nipples

B32-2008 (R2014)........Standard Specification for Solder Metal

B43-2014................Standard Specification for Seamless Red Brass

Pipe, Standard Sizes

B61-2008 (R2013)........Standard Specification for Steam or Valve

Bronze Castings

B62-2009................Standard Specification for Composition Bronze or Ounce Metal Castings

B88-2014................Standard Specification for Seamless Copper

Water Tube

B584-2014...............Standard Specification for Copper Alloy Sand

Castings for General Applications

B687-1999 (R2011).......Standard Specification for Brass, Copper, and

Chromium-Plated Pipe Nipples

C919-2012...............Standard Practice for Use of Sealants in

Acoustical Applications

DESIGN CLARIFICATIONS AM-0003 19 NOV 18

22 11 00 - 3

D2000-2012..............Standard Classification System for Rubber

Products in Automotive Applications

E1120-2008..............Standard Specification for Liquid Chlorine

E1229-2008..............Standard Specification for Calcium Hypochlorite

D1785...................Standard Specification for Poly(Vinyl Chloride)

(PVC) Plastic Pipe, Schedules 40, 80, and 120

D2665...................Standard Specification for PolyVinyl Chloride)

(PVC) Plastic Drain, Waste, and Vent Pipe and

Fittings

F794....................Standard Specification for PolyVinyl Chloride)

(PVC) Profile Gravity Sewer Pipe and Fittings

Based on Controlled Inside Diameter

F1866...................Standard Specification for Poly (Vinyl

Chloride) (PVC) Plastic Schedule 40 Drainage and DWV Fabricated Fittings

E. American Water Works Association (AWWA):

C110-2012...............Ductile-Iron and Gray-Iron Fittings

C151-2009...............Ductile Iron Pipe, Centrifugally Cast

C153-2011...............Ductile-Iron Compact Fittings

C203-2008...............Coal-Tar Protective Coatings and Linings for

Steel Water Pipelines - Enamel and Tape - Hot

Applied

C213-2007...............Fusion-Bonded Epoxy Coating for the Interior and Exterior of Steel Water Pipelines

C651-2014...............Disinfecting Water Mains

F. American Welding Society (AWS):

A5.8M/A5.8-2011-AMD1....Specification for Filler Metals for Brazing and

Braze Welding

G. International Code Council (ICC):

IPC-2012................International Plumbing Code

H. Manufacturers Specification Society (MSS):

SP-58-2009..............Pipe Hangers and Supports - Materials, Design, Manufacture, Selection, Application, and

Installation

SP-72-2010a.............Ball Valves with Flanged or Butt-Welding Ends for General Service

SP-110-2010.............Ball Valves Threaded, Socket-Welding, Solder

Joint, Grooved and Flared Ends

DESIGN CLARIFICATIONS AM-0003 19 NOV 18

22 11 00 - 4

I. NSF International (NSF):

61-2014a................Drinking Water System Components – Health

Effects

372-2011................Drinking Water System Components – Lead Content

J. Plumbing and Drainage Institute (PDI):

PDI-WH 201-2010.........Water Hammer Arrestors

K. Department of Veterans Affairs:

H-18-8-2013.............Seismic Design Handbook

L. National Fire Protection Association

NFPA 99 – 2015..........Health Care Facilities Code

1.4 SUBMITTALS

A. Submittals, including number of required copies, shall be submitted in accordance with Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND

SAMPLES.

B. SD-02 Shop Drawings

C. Information and material submitted under this section shall be marked

“SUBMITTED UNDER SECTION 22 11 00, FACILITY WATER DISTRIBUTIONS”, with applicable paragraph identification.

D. Manufacturer's Literature and Data including: Full item description and optional features and accessories. Include dimensions, weights, materials, applications, standard compliance, model numbers, size, and capacity.

1. All items listed in Part 2 - Products.

E. Complete operating and maintenance manuals including wiring diagrams, technical data sheets and information for ordering replacement parts:

1. Include complete list indicating all components of the systems.

2. Include complete diagrams of the internal wiring for each item of equipment.

3. Diagrams shall have their terminals identified to facilitate installation, operation and maintenance.

F. Completed System Readiness Checklist provided by the CxA and completed by the Contractor, signed by a qualified technician and dated on the date of completion, in accordance with the requirements of Section 22

08 00, COMMISSIONING OF PLUMBING SYSTEMS.

G. Submit training plans and instructor qualifications in accordance with the requirements of Section 22 08 00, COMMISSIONING OF PLUMBING

SYSTEMS.

DESIGN CLARIFICATIONS AM-0003 19 NOV 18

22 11 00 - 5

1.5 QUALITY ASSURANCE

A. SD-07 Certificates

B. A certificate shall be submitted prior to welding of steel piping showing the Welder’s certification. The certificate shall be current and no more than one year old. Welder’s qualifications shall be in accordance with ASME BPVC Section IX.

C. All grooved joint couplings, fittings, valves, and specialties shall be the products of a single manufacturer. Grooving tools shall be by the same manufacturer as the groove components.

D. All pipe, couplings, fittings, and specialties shall bear the identification of the manufacturer and any markings required by the applicable referenced standards.

E. Bio-Based Materials: For products designated by the USDA’s Bio-

Preferred Program, provide products that meet or exceed USDA recommendations for bio-based content, so long as products meet all performance requirements in this specifications section. For more information regarding the product categories covered by the Bio-

Preferred Program, visit http://www.biopreferred.gov.

1.6 SPARE PARTS

A. SD-04 Samples

A. Bor mechanical press-connect fittings, provide tools required for each pipe size used at the facility.

1.7 AS-BUILT DOCUMENTATION

A. Submit manufacturer’s literature and data updated to include submittal review comments and any equipment substitutions.

B. Submit operation and maintenance data updated to include submittal review comments, substitutions and construction revisions shall be in electronic version on compact disc or DVD inserted into a three ring binder. All aspects of system operation and maintenance procedures, including piping isometrics, wiring diagrams of all circuits, a written description of system design, control logic, and sequence of operation shall be included in the operation and maintenance manual. The operations and maintenance manual shall include troubleshooting techniques and procedures for emergency situations. Notes on all special systems or devices shall be included. A list of recommended spare parts (manufacturer, model number, and quantity) shall be furnished. Information explaining any special knowledge or tools the http://www.biopreferred.gov/

DESIGN CLARIFICATIONS AM-0003 19 NOV 18

22 11 00 - 6 owner will be required to employ shall be inserted into the As-Built documentation.

C. The installing contractor shall maintain as-built drawings of each completed phase for verification; and, shall provide the complete set at the time of final systems certification testing. As-built drawings are to be provided, and a copy of them in Auto-CAD version latest provided on compact disk or DVD. Should the installing contractor engage the testing company to provide as-built or any portion thereof, it shall not be deemed a conflict of interest or breach of the ‘third party testing company’ requirement.

D. Certification documentation shall be provided to COR 10 working days prior to submitting the request for final inspection. The documentation shall include all test results, the names of individuals performing work for the testing agency on this project, detailed procedures followed for all tests, and certificate if applicable that all results of tests were within limits specified. If a certificate is not available, all documentation shall be on the Certifier’s letterhead.

PART 2 - PRODUCTS

2.1 MATERIALS

A. SD-03 Product Data

B. Material or equipment containing a weighted average of greater than

0.25 percent lead are prohibited in any potable water system intended for human consumption, and shall be certified in accordance with NSF 61 or NSF 372. Endpoint devices used to dispense water for drinking shall meet the requirements of NSF 61, Section 9.

C. Plastic pipe, fittings, and solvent cement shall meet NSF 14 and shall be NSF listed for the service intended.

2.2 UNDERGROUND WATER SERVICE CONNECTIONS TO BUILDINGS

A. From inside face of exterior wall to a distance of approximately 1500 mm (5 feet) outside of building and underground inside building, material to be the same for the size specified inside the building.

B. 75 mm (3 inch) Diameter and Greater: Ductile iron, AWWA C151, 2413 kPa

(350 psig) pressure class, exterior bituminous coating, and cement lined. Bio-based materials shall be utilized when possible. Provide flanged and anchored connection to interior piping.

Under 75 mm (3 inch) Diameter: Copper tubing, ASTM B88, Type K, seamless, annealed. Fittings are as specified in paragraph “Above

DESIGN CLARIFICATIONS AM-0003 19 NOV 18

22 11 00 - 7

Ground (Interior) Water Piping”. Use brazing alloys, AWS A5.8M/A5.8, Classification BCuP.

A. PVC Piping – Underslab

1. For corrosive soil underground piping.

2. PVC, AWWA Pipe: AWWA C900, Class 200, with bell end with gasket, and with spigot end.

3. Comply with UL 1285 for fire-service mains if indicated.

4. PVC Fabricated Fittings: AWWA C900, Class 200, with bell-and-spigot or double-bell ends. Include elastomeric gasket in each bell.

5. PVC Molded Fittings: AWWA C907, Class 150, with bell-and-spigot or double-bell ends. Include elastomeric gasket in each bell.

6. Push-on-Joint, Ductile-Iron Fittings: AWWA C110, ductile- or gray-iron standard pattern or AWWA C153, ductile-iron compact pattern.

a. Gaskets: AWWA C111, rubber.

7. Mechanical-Joint, Ductile-Iron Fittings: AWWA C110, ductile- or gray-iron standard pattern or AWWA C153, ductile-iron compact pattern.

a. Glands, Gaskets, and Bolts: AWWA C111, ductile- or gray-iron glands, rubber gaskets, and steel bolts.

8. Solvent-Cement Joints: All surfaces shall be cleaned and dry prior to applying the primer and solvent cement. Installation practices shall comply with ASTM F402. The joint shall conform to ASTM D2855 and ASTM D2665 appendices.

9. Provide PVC to cast iron adaptor for connecting above floor cast iron piping to underslab PVC piping.

2.3 ABOVE GROUND (INTERIOR) WATER PIPING

A. Pipe: Copper tube, ASTM B88, Type K or L, drawn. For pipe 150 mm (6 inches) and larger, stainless steel, ASTM A312, schedule 10 shall be used.

B. Fittings for Copper Tube:

1. Wrought copper or bronze castings conforming to ASME B16.18 and

B16.22. Unions shall be bronze, MSS SP-72, MSS SP-110, solder or braze joints. Use lead-free solder for all soldered joints.

2. Grooved fittings, 50 to 150 mm (2 to 6 inch) wrought copper ASTM

B75/B75M C12200, 125 to 150 mm (5 to 6 inch) bronze casting ASTM

B584, C84400. Mechanical grooved couplings, 2070 kpa (300 psig) minimum ductile iron, ASTM A536 Grade 448-310-12 (Grade 65-45-12), or malleable iron, ASTM A47/A47M Grade 22410 (Grade 32510) housing, with EPDM gasket, steel track head bolts, ASTM A183, coated with copper colored alkyd enamel.

DESIGN CLARIFICATIONS AM-0003 19 NOV 18

22 11 00 - 8

3. Mechanical press-connect fittings for copper pipe and tube shall conform to the material and sizing requirements of ASME B16.51, NSF

61 approved, 50 mm (2 inch) size and smaller mechanical press-connect fittings, double pressed type, with EPDM (ethylene propylene diene monomer) non-toxic synthetic rubber sealing elements and un-pressed fitting identification feature.

4. Mechanically formed tee connection: Form mechanically extracted collars in a continuous operation by drilling pilot hole and drawing out tube surface to form collar, having a height of not less than three times the thickness of tube wall. Adjustable collaring device shall ensure proper tolerance and complete uniformity of the joint.

Notch and dimple joining branch tube in a single process to provide free flow where the branch tube penetrates the fitting. Braze joints.

5. Flanged fittings, bronze, class 150, solder-joint ends conforming to

ASME B16.24.

C. Piping and Fittings for Dental Water Supply:

1. Stainless steel, ASTM A312, Schedule 10, annealed type 316L welded seamless stainless steel piping with stainless steel compression fittings. Provide on dental water supply from dental water treatment filter to dental chair floor box water supply connection.

2. Stainless steel double ferrule compression type fittings, Type 316, material conforming to ASTM A182.

D. Adapters: Provide adapters for joining pipe or tubing with dissimilar end connections.

E. Solder: Lead-free conforming to ASTM B32 alloy type Sb5, HA or HB.

Provide non-corrosive flux.

F. Brazing alloy: AWS A5.8M/A5.8, brazing filler metals shall be BCuP series for copper to copper joints and BAg series for copper to steel joints.

2.4 EXPOSED WATER PIPING

A. Finished Room: Use full iron pipe size chrome plated brass piping for exposed water piping connecting fixtures, casework, cabinets, equipment and reagent racks when not concealed by apron including those furnished by the Government or specified in other sections.

1. Pipe: ASTM B43, standard weight.

DESIGN CLARIFICATIONS AM-0003 19 NOV 18

22 11 00 - 9

2. Fittings: ASME B16.15 cast bronze threaded fittings with chrome finish.

3. Nipples: ASTM B687, Chromium-plated.

4. Unions: MSS SP-72, MSS SP-110, brass or bronze with chrome finish.

Unions 65 mm (2-1/2 inches) and larger shall be flange type with approved gaskets.

B. Unfinished Rooms, Mechanical Rooms and Kitchens: Chrome-plated brass piping is not required. Paint piping systems as specified in Section 09

91 00, PAINTING.

2.5 TRAP PRIMER WATER PIPING

A. Pipe: Copper tube, ASTM B88, type K, hard drawn.

B. Fittings: Bronze castings conforming to ASME B16.18 Solder joints.

C. Solder: ASTM B32 alloy type Sb5. Provide non-corrosive flux.

2.6 STRAINERS

A. Provide on high pressure side of pressure reducing valves, on suction side of pumps, on inlet side of indicating and control instruments and equipment subject to sediment damage and where shown on drawings.

Strainer element shall be removable without disconnection of piping.

B. Water: Basket or "Y" type with easily removable cover and brass strainer basket.

C. Body: Less than 75 mm (3 inches), brass or bronze; 75 mm (3 inches) and greater, cast iron or semi-steel.

2.7 DIELECTRIC FITTINGS

A. Provide dielectric couplings or unions between pipes of dissimilar metals.

2.8 STERILIZATION CHEMICALS

A. Hypochlorite: ASTM E1120.

B. Liquid Chlorine: ASTM E1229.

2.9 WATER HAMMER ARRESTER

A. Closed copper tube chamber with permanently sealed 413 kPa (60 psig) air charge above a Double O-ring piston. Two high heat Buna-N 0-rings pressure packed and lubricated with FDA approved silicone compound. All units shall be designed in accordance with ASSE 1010. Access shall be provided where devices are concealed within partitions or above ceilings. Size and install in accordance with PDI-WH 201 requirements.

Provide water hammer arrestors at:

1. All solenoid valves.

2. All single and groups of two or more flush valves.

DESIGN CLARIFICATIONS AM-0003 19 NOV 18

22 11 00 - 10

3. All quick opening or closing valves.

4. All medical washing equipment.

2.10 DENTAL WATER SYSTEMS AND EQUIPMENT

a. Dental Water: Dental Water supply filtration system shall be EPA

83315-2 registered, ISO 13485 certified and CE certified, dental water system, FDA cleared, and suitable for direct feed of 7 operatories.

Unit shall be wall mounted, six stage filtration, including Class B ultraviolet irradiation disinfection of many micro-organisms, such as

Pseudomonas, Streptococcus, Legionella, and Mycobacterium Tuberculosis.

Unit shall be capable of producing 1,000 to 10,000 L (264 to 2,641 gallons) of dental water.

1. Provide polyurethane tubing manifold for seven connections. Tubing shall be polyurethane tubing ether-based, complies with FDA CFR 21, suitable for distilled, deionized, or reverse osmosis water.

Fitting shall be John Guest, or equal, Acetal Fittings with food grade EPDM O-ring. Extend individual polyurethane tubing to each of seven floor boxes and make final connections.

2. Provide remote control water valve and piping system complete with full size bypass, valves, solenoid valve, and filter with control panel for remote close and open of solenoid valve in Dental Suite.

2.11 DEIONIZED WATER TUBING AND FITTING

A. Schedule 80 (PP) homopolymer polypropylene pressure rated piping with

SDR ratio of 11, conforming to ASTM D4101, and Schedule 80 fitting conforming to ASTM D4101 and ASTM D2146 for thermal socket fusion joints, and 150 PSI rated.

PART 3 - EXECUTION

3.1 INSTALLATION

A. General: Comply with the International Plumbing Code and the following:

1. Install branch piping for water from the piping system and connect to all fixtures, valves, cocks, outlets, casework, cabinets and equipment, including those furnished by the Government or specified in other sections.

2. Pipe shall be round and straight. Cutting shall be done with proper tools. Pipe, except for plastic and glass, shall be reamed to remove burrs and a clean smooth finish restored to full pipe inside diameter.

3. All pipe runs shall be laid out to avoid interference with other work/trades.

DESIGN CLARIFICATIONS AM-0003 19 NOV 18

22 11 00 - 11

4. Install union and shut-off valve on pressure piping at connections to equipment.

5. Pipe Hangers, Supports and Accessories:

a. All piping shall be supported per the IPC, H-18-8 Seismic Design

Handbook, MSS SP-58, and SMACNA as required.

b. Shop Painting and Plating: Hangers, supports, rods, inserts and accessories used for pipe supports shall be shop coated with zinc chromate primer paint. Electroplated copper hanger rods, hangers and accessories may be used with copper tubing.

c. Floor, Wall and Ceiling Plates, Supports, Hangers:

1) Solid or split un-plated cast iron.

2) All plates shall be provided with set screws.

3) Pipe Hangers: Height adjustable clevis type.

4) Adjustable Floor Rests and Base Flanges: Steel.

5) Concrete Inserts: "Universal" or continuous slotted type.

6) Hanger Rods: Mild, low carbon steel, fully threaded or

Threaded at each end with two removable nuts at each end for positioning rod and hanger and locking each in place.

7) Pipe Hangers and Riser Clamps: Malleable iron or carbon steel.

Pipe Hangers and riser clamps shall have a copper finish when supporting bare copper pipe or tubing.

8) Rollers: Cast iron.

9) Self-drilling type expansion shields shall be "Phillips" type, with case hardened steel expander plugs.

10) Hangers and supports utilized with insulated pipe and tubing shall have 180 degree (minimum) metal protection shield centered on and welded to the hanger and support. The shield thickness and length shall be engineered and sized for distribution of loads to preclude crushing of insulation without breaking the vapor barrier. The shield shall be sized for the insulation and have flared edges to protect vapor-retardant jacket facing. To prevent the shield from sliding out of the clevis hanger during pipe movement, center-ribbed shields shall be used.

11) Miscellaneous Materials: As specified, required, directed or as noted on the drawings for proper installation of hangers, supports and accessories. If the vertical distance exceeds 6.1 m (20 feet) for cast iron pipe additional support shall be

DESIGN CLARIFICATIONS AM-0003 19 NOV 18

22 11 00 - 12 provided in the center of that span. Provide all necessary auxiliary steel to provide that support.

12) With the installation of each flexible expansion joint, provide piping restraints for the upstream and downstream section of the piping at the flexible expansion joint. Provide calculations supporting the restraint length design and type of selected restraints. Restraint calculations shall be based on the criteria from the manufacturer regarding their restraint design.

6. Install chrome plated cast brass escutcheon with set screw at each wall, floor and ceiling penetration in exposed finished locations and within cabinets and millwork.

7. Penetrations:

a. Firestopping: Where pipes pass through fire partitions, fire walls, smoke partitions, or floors, install a fire stop that provides an effective barrier against the spread of fire, smoke, and gases as specified in Section 07 84 00, FIRESTOPPING.

Completely fill and seal clearances between raceways and openings with the firestopping materials.

b. Waterproofing: At floor penetrations, completely seal clearances around the pipe and make watertight with sealant as specified in

Section 07 92 00, JOINT SEALANTS. Bio-based materials shall be utilized when possible.

c. Acoustical sealant: Where pipes pass through sound rated walls, seal around the pipe penetration with an acoustical sealant that is compliant with ASTM C919.

8. Mechanical press-connect fitting connections shall be made in accordance with the manufacturer’s installation instructions. The tubing shall be fully inserted into the fitting and the tubing marked at the shoulder of the fitting. The fitting alignment shall be checked against the mark on the tubing to assure the tubing is fully engaged (inserted) in the fitting. Ensure the tube is completely inserted to the fitting stop (appropriate depth) and squared with the fitting prior to applying the pressing jaws onto the fitting. The joints shall be pressed using the tool(s) approved by the manufacturer. Minimum distance between fittings shall be in accordance with the manufacturer’s requirements. When the pressing

DESIGN CLARIFICATIONS AM-0003 19 NOV 18

22 11 00 - 13 cycle is complete, visually inspect the joint to ensure the tube has remained fully inserted, as evidenced by the visible insertion mark.

B. Domestic Water piping shall conform to the following:

1. Grade all lines to facilitate drainage. Provide drain valves at bottom of risers and all low points in system. Design domestic hot water circulating lines with no traps.

2. Connect branch lines at bottom of main serving fixtures below and pitch down so that main may be drained through fixture. Connect branch lines to top of main serving only fixtures located on floor above.

3.2 TESTS

A. General: Test system either in its entirety or in sections. Submit testing plan to COR 10 working days prior to test date.

B. SD-06 Test Reports

C. Potable Water System: Test after installation of piping and domestic water heaters, but before piping is concealed, before covering is applied, and before plumbing fixtures are connected. Fill systems with water and maintain hydrostatic pressure of 1035 kPa (150 psig) gage for two hours. No decrease in pressure is allowed. Provide a pressure gage with a shutoff and bleeder valve at the highest point of the piping being tested. Pressure gauge shall have 1 psig increments.

D. All Other Piping Tests: Test new installed piping under 1-1/2 times actual operating conditions and prove tight.

E. The test pressure shall hold for the minimum time duration required by the applicable plumbing code or authority having jurisdiction.

3.3 STERILIZATION

A. After tests have been successfully completed, thoroughly flush and sterilize the interior domestic water distribution system in accordance with AWWA C651.

B. Use liquid chlorine or hypochlorite for sterilization.

3.4 COMMISSIONING

A. SD-11 Closeout Submittals

B. Provide commissioning documentation in accordance with the requirements of Section 22 08 00, COMMISSIONING OF PLUMBING SYSTEMS.

C. Components provided under this section of the specification will be tested as part of a larger system.

DESIGN CLARIFICATIONS AM-0003 19 NOV 18

22 11 00 - 14

3.5 DEMONSTRATION AND TRAINING

A. Provide services of manufacturer’s technical representative for 8 hours to instruct VA Personnel in operation and maintenance of the system.

B. Submit training plans and instructor qualifications in accordance with the requirements of Section 22 08 00, COMMISSIONING OF PLUMBING

- - - E N D - - -

DESIGN CLARIFICATIONS AM-0003 19 NOV 18

22 14 00 - 1

SECTION 22 14 00

FACILITY STORM DRAINAGE

A. This section describes the requirements for storm drainage systems, including piping and all necessary accessories as designated in this section.

B. A complete listing of all acronyms and abbreviations are included in

Section 22 05 11, COMMON WORK RESULTS FOR PLUMBING.

1.2 RELATED WORK

A. Section 01 00 00, GENERAL REQUIREMENTS.

B. Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES.

C. Section 01 81 13, SUSTAINABLE CONSTRUCTION REQUIREMENTS.

D. Section 01 91 00, GENERAL COMMISSIONING REQUIREMENTS.

E. Section 07 84 00, FIRESTOPPING: Penetrations in rated enclosures.

F. Section 07 92 00, JOINT SEALANTS.

G. Section 09 91 00, PAINTING: Preparation and finish painting and identification of piping systems.

H. Section 13 05 41, SEISMIC RESTRAINT REQUIREMENTS FOR NON-STRUCTURAL

COMPONENTS: Seismic Restraint

I. Section 22 05 11, COMMON WORK RESULTS FOR PLUMBING: Pipe Hangers and

Supports, Materials Identification.

K. Section 22 07 11, PLUMBING INSULATION.

L. SECTION 22 08 00, COMMISSIONING OF PLUMBING SYSTEMS.

1.3 APPLICABLE PUBLICATIONS

A. The publications listed below form a part of this specification to the extent referenced. The publications are referenced in the text by the basic designation only.

B. American Society of Mechanical Engineers (ASME):

A112.6.4-2003 (R2012) ..Roof, Deck, and Balcony Drains

A13.1-2007 (R2013)......Scheme for Identification of Piping Systems

B1.20.1-2013............Pipe Threads, General Purpose, Inch

B16.12-2009 (R2014).....Cast Iron Threaded Drainage Fittings

B16.23-2011.............Cast Copper Alloy Solder Joint Drainage

Fittings - DWV

B16.29-2012.............Wrought Copper and Wrought Copper Alloy Solder-

Joint Drainage Fittings – DWV

DESIGN CLARIFICATIONS AM-0003 19 NOV 18

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C. American Society for Testing and Materials (ASTM):

A47/A47M-1999 (R2014)...Standard Specification for Ferritic Malleable

Iron Castings

A53/A53M-2012...........Standard Specification for Pipe, Steel, Black

And Hot-Dipped, Zinc-coated Welded and Seamless

A74-2013a...............Standard Specification for Cast Iron Soil Pipe and Fittings

A183-2014...............Standard Specification for Carbon Steel Track

Bolts and Nuts

A536-1984(R2014)........Standard Specification for Ductile Iron

Castings

A733-2013...............Standard Specification for Welded and Seamless

Carbon Steel and Austenitic Stainless Steel

Pipe Nipples

A888-2013a..............Standard Specification for Hubless Cast Iron

Soil Pipe and Fittings for Sanitary and Storm

Drain, Waste, and Vent Piping Applications

B32-2008 (R2014)........Standard Specification for Solder Metal

B306-2013...............Standard Specification for Copper Drainage Tube

(DWV)

B584-2014...............Standard Specification for Copper Alloy Sand

Castings for General Applications

B828-2002 (R2010).......Standard Practice for Making Capillary Joints by Soldering of Copper and Copper Alloy Tube and Fittings

B813-2010...............Standard Specification for Liquid and Paste

Fluxes for Soldering of Copper and Copper Alloy

Tube

C564-2014...............Standard Specification for Rubber Gaskets for

Cast Iron Soil Pipe and Fittings

C1173-2010 (R2014)......Standard Specification for Flexible Transition

Couplings for Underground Piping Systems

D2000-2012..............Standard Classification System for Rubber

Products in Automotive Applications

D1785...................Standard Specification for Poly(Vinyl Chloride)

(PVC) Plastic Pipe, Schedules 40, 80, and 120

DESIGN CLARIFICATIONS AM-0003 19 NOV 18

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D2665...................Standard Specification for PolyVinyl Chloride)

(PVC) Plastic Drain, Waste, and Vent Pipe and

Fittings

F794....................Standard Specification for PolyVinyl Chloride)

(PVC) Profile Gravity Sewer Pipe and Fittings

Based on Controlled Inside Diameter

F1866...................Standard Specification for Poly (Vinyl

Chloride) (PVC) Plastic Schedule 40 Drainage and DWV Fabricated Fittings

D. Copper Development Association (CDA):

A4015-2011..............Copper Tube Handbook

E Cast Iron Soil Pipe Institute (CISPI):

301-2012................Standard Specification for Hubless Cast Iron

Soil Pipe and Fittings for Sanitary and Storm

Drain, Waste, and Vent Piping Applications

310-2012................Standard Specification for Coupling for Use in

Connection with Hubless Cast Iron Soil Pipe and

Fittings for Sanitary and Storm Drain, Waste, and Vent Piping Applications

F. International Code Council (ICC):

IPC-2012................International Plumbing Code

1.4 SUBMITTALS

A. Submittals, including number of required copies, shall be submitted in accordance with Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND

SAMPLES.

B. SD-02 Shop Drawings

C. Information and material submitted under this section shall be marked

“SUBMITTED UNDER SECTION 22 14 00, FACILITY STORM DRAINAGE”, with applicable paragraph identification.

D. SD-03 Product Data

E. Manufacturer's Literature and Data including: Full item description and optional features and accessories. Include dimensions, weights, materials, applications, standard compliance, model numbers, size, and capacity.

1. Pipe and Fittings.

2. Specialty Pipe Fittings.

3. Cleanouts.

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4. Roof Drains.

5. Overflow Drains.

6. Balcony drains.

6. Expansion Joints.

7. Downspout Nozzles.

8. Sleeve Flashing Devices.

DF Detailed shop drawing of clamping device and extensions when required in connection with the waterproofing membrane.

G. Completed System Readiness Checklist provided by the CxA and completed by the contractor, signed by a qualified technician and dated on the date of completion, in accordance with the requirements of Section 22

08 00, COMMISSIONING OF PLUMBING SYSTEMS.

H. Submit training plans and instructor qualifications in accordance with the requirements of Section 22 08 00, COMMISSIONING OF PLUMBING

SYSTEMS.

1.5 QUALITY ASSURANCE

A. Bio-Based Materials: For products designated by the USDA’s Bio-

Preferred Program, provide products that meet or exceed USDA recommendations for bio-based content, so long as products meet all performance requirements in this specifications section. For more information regarding the product categories covered by the Bio-

Preferred Program, visit http://www.biopreferred.gov.

1.6 AS-BUILT DOCUMENTATION

A. SD-11 Closeout Submittals

AB Submit manufacturer’s literature and data updated to include submittal review comments and any equipment substitutions.

C. Submit operation and maintenance data updated to include submittal review comments, substitutions and construction revisions shall be in electronic version on compact disc or DVD inserted into a three ring binder. All aspects of system operation and maintenance procedures, including piping isometrics, wiring diagrams of all circuits, a written description of system design, control logic, and sequence of operation shall be included in the operation and maintenance manual. The operations and maintenance manual shall include troubleshooting techniques and procedures for emergency situations. Notes on all special systems or devices such as damper and door closure interlocks shall be included. A List of recommended spare parts (manufacturer, DESIGN CLARIFICATIONS AM-0003 19 NOV 18

22 14 00 - 5 model number, and quantity) shall be furnished. Information explaining any special knowledge or tools the owner will be required to employ shall be inserted into the As-Built documentation.

D. The installing contractor shall maintain as-built drawings of each completed phase for verification; and, shall provide the complete set at the time of final systems certification testing. As-built drawings are to be provided, and a copy of them in Auto-CAD version //____// provided on compact disk or DVD. Should the installing contractor engage the testing company to provide as-built or any portion thereof, it shall not be deemed a conflict of interest or breach of the ‘third party testing company’ requirement.

E. Certification documentation shall be provided to COR 10 working days prior to submitting the request for final inspection. The documentation shall include all test results, the names of individuals performing work for the testing agency on this project, detailed procedures followed for all tests, and certification that all results of tests were within limits specified.

PART 2 - PRODUCTS

2.1 STORM WATER DRAIN PIPING

A. Cast Iron Storm Pipe and Fittings:

1. Cast iron storm pipe and fittings shall be used for the following applications:

a. Pipe buried in or in contact with earth.

b. Extension of pipe to a distance of approximately 1500 mm (5 feet) outside of building walls.

a. Interior storm piping above grade.

b. All mechanical equipment rooms or other areas containing mechanical air handling equipment.

2. The cast iron storm pipe shall be bell and spigot, or hubless (plain end or no-hub) as required by selected jointing method.

3. The material for all pipe and fittings shall be cast iron soil pipe and fittings and shall conform to the requirements of CISPI 301, ASTM A888, or ASTM A74.

4. Joints for hubless pipe and fittings shall conform to the manufacturer’s installation instructions. Couplings for hubless joints shall conform to CISPI 310, and FM 1680. Joints for hub and spigot pipe shall be installed with compression gaskets conforming to the requirements of ASTM C564.

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B. Copper Tube, (DWV): May be used for piping above ground.

1. The copper DWV tube shall be drainage type, drawn temper conforming to ASTM B306.

2. The copper drainage fittings shall be cast copper or wrought copper conforming to ASME B16.23 or ASME 16.29.

3. The joints shall be lead free, using a water flushable flux, and conforming to ASTM B32.

C. PVC Piping

1. Use for corrosive soil underground piping.

2. PVC Cellular-Core Pipe And Fittings: ASTM F891, Sewer and Drain

Series, PS 50 minimum stiffness, PVC cellular-core pipe with plain ends for solvent-cemented joints. Fittings: ASTM D3034, SDR 35, PVC socket-type fittings.

3. PVC Corrugated Sewer Piping

a. For corrosive soil underground piping. Pipe: ASTM F949, PVC, corrugated pipe with bell-and-spigot ends for gasketed joints.

Fittings: ASTM F949, PVC molded or fabricated, socket type.

Gaskets: ASTM F477, elastomeric seals.

4. PVC Profile Sewer Piping

a. For corrosive soil underground piping. Pipe: ASTM F794, PVC profile, gravity sewer pipe with bell-and-spigot ends. Fittings:

ASTM D3034, PVC with bell ends. Gaskets: ASTM F477, elastomeric seals.

5. PVC Type PSM Sewer Piping

a. For corrosive soil underground piping. Pipe: ASTM D3034 SDR 35, PVC Type PSM sewer pipe with bell-and-spigot ends. Fittings: ASTM

D3034, PVC with bell ends. Gaskets: ASTM F477, elastomeric seals.

6. PVC Gravity Sewer Piping

a. For corrosive soil underground piping. Pipe and fittings shall be

ASTM F679, PVC gravity sewer pipe with bell-and-spigot ends.

Gaskets: ASTM F477, elastomeric seals for gasketed joints.

7. PVC Pressure Piping

a. For corrosive soil underground piping. Pipe: AWWA C900, Class 200

PVC pipe with bell-and-spigot ends for gasketed joints. Fittings:

AWWA C900, Class 200 PVC pipe with bell ends. Gaskets: ASTM F477, elastomeric seals.

8. For PVC piping, solvent cement joints shall be used for joints. All surfaces shall be cleaned and dry prior to applying the primer and solvent cement. Installation practices shall comply with ASTM F402.

The joint shall conform to ASTM D2855 and ASTM D2665 appendices.

9. Provide PVC to cast iron adaptor for connecting above floor cast iron piping to underslab PVC piping.

D. Roof drain piping and body of drain in locations where the outdoor conditions are subject to freezing shall be insulated.

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2.2 SPECIALTY PIPE FITTINGS

A. Transition pipe couplings shall join piping with small differences in outside diameters or be of different materials. End connections shall be of the same size and compatible with the pipes being joined. The transition coupling shall be unshielded, elastomeric, sleeve type reducing or transition pattern conforming with ASTM C1173 and include shear ring and corrosion resistant metal tension band and tightening mechanism on each end. The transition coupling sleeve coupling shall be of the following material:

1. For cast iron soil pipes, the sleeve material shall be rubber conforming to ASTM C564.

2. Dissimilar pipes, the sleeve material shall be PVC conforming to

ASTM D5926, or other material compatible with the pipe materials being joined.

B. Dielectric fittings shall conform to ASSE 1079 with a pressure rating of 861 kPa (125 psig) at a minimum temperature of 82 degrees C (180 degrees F). The end connection shall be solder joint copper alloy and threaded ferrous.

C. Dielectric flanges shall conform to ASSE 1079 with a pressure rating of

1035 kPa (150 psig). The flange shall be a factory fabricated, bolted, companion flange assembly. The end connection shall be threaded or solder-joint copper alloy and threaded ferrous.

D. Dielectric flange insulating kits shall be of non-conducting materials for field assembly of companion flanges with a pressure rating of 1035 kPa (150 psig). The gasket shall be neoprene or phenolic. The bolt sleeves shall be phenolic or polyethylene. The washers shall be phenolic with steel backing washers.

E. Dielectric nipples shall be electroplated steel and shall conform with

ASTM F1545 with a pressure ratings of 2070 kPa (300 psig) at 107 degrees C (225 degrees F). The end connection shall be male threaded.

2.4 CLEANOUTS

A. Cleanouts shall be the same size as the pipe, up to 100 mm (4 inches);

not less than 100 mm (4 inches) for larger pipe. Cleanouts shall be easily accessible and shall be gastight and watertight. A minimum clearance of 600 mm (24 inches) shall be provided for clearing a clogged storm sewer line.

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B. Cleanouts shall be provided at or near the base of the vertical stacks with the cleanout plug located approximately 600 mm (24 inches) above the floor. The cleanouts shall be extended to the wall access cover.

Cleanout shall consist of sanitary tees. Nickel bronze square frame and stainless steel cover with minimum opening of 150 mm by 150 mm (6 inch by 6 inch) shall be provided at each wall cleanout.

C. In horizontal runs above grade, cleanouts shall consist of cast brass tapered screw plug in fitting or caulked/no hub cast iron ferrule.

Plain end (no-hub) piping in interstitial space or above ceiling may use plain end (no-hub) blind plug and clamp.

2.5 ROOF DRAINS AND CONNECTIONS

A. Roof Drains: Roof Drains (RD) shall be cast iron with clamping device for making watertight connection and shall conform with ASME A112.6.4.

Free openings through strainer shall be twice area of drain outlet. For roof drains not installed in connection with a waterproof membrane, a soft copper membrane shall be provided 300 mm (12 inches) in diameter greater than outside diameter of drain collar. An integral gravel stop shall be provided for drains installed on roofs having built up roofing covered with gravel or slag. Integral no-hub, soil pipe gasket or threaded outlet connection shall be provided.

1. Flat Roofs: The roof drain shall be a combination roof drain and overflow drain unit with combination membrane flashing clamp / gravel stops, double top set plate, and cast iron dome shaped strainer with integral flange not less than 300 mm (12 inches) in diameter. For an insulated roof, a roof drain / overflow drain combination with an adjustable drainage collar shall be provided, which can be raised or lowered to meet required insulation heights.

The overflow drain shall have internal 51 mm (2-inch) high water dam integral to the drain body. The bottom section shall serve as roof drain during construction before insulation is installed.

7. Roof drains in areas subject to freezing shall have heat tape and shall be insulated.

B. Expansion Joints: Expansions joints shall be heavy cast iron with cast brass or PVC expansion sleeve having smooth bearing surface working freely against a packing ring held in place and under pressure of a bolted gland ring, forming a water and air tight flexible joint.

Asbestos packing is prohibited.

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C. Downspout Nozzle: The downspout nozzle fitting shall be of nickel bronze, unfinished, with internal pipe thread for connection to cast iron rainwater leader and overflow drain piping.

2.6 BALCONY DECK DRAINS

A. AD-1 Area Drain (Primary balcony drain): Area drain shall comply with

ASME A112.6.3. A caulking flange, inside gasket, or hubless connection shall be provided for connection to cast iron pipe, screwed or no hub outlets for connection to steel pipe. The drain body shall be provided with sump receiver and underdeck clamping device. Drain body connection shall be bottom outlet. Puncturing membrane other than for drain opening will not be permitted. Double drainage pattern area drains shall have integral seepage pan for embedding into floor construction, and weep holes to provide adequate drainage from pan to drain pipe. Strainer shall be heavy-duty 152 mm (6-inch) square stainless steel. An extension shall be provided to level strainer flush with finish deck surface.

B. AD-2 Area Drain (Overflow drain): Area drain shall be 50 mm (2-inch) shallow trench drain, Type 304 austenitic stainless steel construction, complete with stainless steel heel proof grating, straight sections, and outlet section. Sections shall be standard 500 mm and 1000 mm

(19.68 and 39.37 inches) long. Provide sections to extend the entire length of the balcony.

2.7 WATERPROOFING

A. A sleeve flashing device shall be provided at points where pipes pass through membrane waterproofed floors or walls. The sleeve flashing device shall be manufactured, cast iron fitting with clamping device that forms a sleeve for the pipe floor penetration of the floor membrane. A galvanized steel pipe extension shall be included in the top of the fitting that will extend 50 mm (2 inches) above finished floor and galvanized steel pipe extension PVC pipe extension in the bottom of the fitting that will extend through the floor slab. A waterproofed caulked joint shall be provided at the top hub.

PART 3 - EXECUTION

3.1 PIPE INSTALLATION

A. The pipe installation shall comply with the requirements of the IPC and these specifications.

B. Branch piping shall be installed from the piping system and connect to all drains and outlets.

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C. Pipe shall be round and straight. Cutting shall be done with proper tools. Pipe, except for glass, shall be reamed to remove burrs and a clean smooth finish restored to full pipe inside diameter.

D. All pipe runs shall be laid out to avoid interference with other work/trades.

E. The piping shall be installed above accessible ceilings to allow for ceiling panel removal.

F. Unless otherwise stated on the documents, minimum horizontal slope shall be one inch for every 2.44 m (8 feet) (1 percent slope) of pipe length.

G. The piping shall be installed free of sags and bends.

H. Seismic restraint shall be installed where required by code.

I. Changes in direction for storm drainage piping shall be made using appropriate branches, bends and long sweep bends. Sanitary tees and short sweep ¼ bends may be used on vertical stacks if change in direction of flow is from horizontal to vertical. Long turn double wye branch and 1/8 bend fittings shall be used if two drains are installed back to back or side by side with common drain pipe. Do not change direction of flow more than 90 degrees. Proper size of standard increaser and reducers shall be used if pipes of different sizes are connected. Reducing size of drainage piping in direction of flow is prohibited.

J. Buried storm drainage piping shall be laid beginning at the low point of each system. Piping shall be installed true to grades and alignment indicated with unbroken continuity of invert. Hub ends shall be placed upstream. Required gaskets shall be installed according to manufacturer’s written instruction for use of lubricants, cements, and other installation requirements. Bio-based materials shall be utilized when possible.

K. Cast iron piping shall be installed according to CISPI’s “Cast Iron

Soil Pipe and Fittings Handbook,” Chapter IV, “Installation of Cast

Iron Soil Pipe and Fittings”

L. Aboveground copper tubing shall be installed according to CDA A4015.

3.2 JOINT CONSTRUCTION

A. Hub and spigot, cast iron piping with gasket joints shall be joined in accordance with CISPI’s “Cast Iron Soil Pipe and Fittings Handbook” for compression joints.

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B. Hub and spigot, cast iron piping with calked joints shall be joined in accordance with CISPI’s “Cast Iron Soil Pipe and Fittings Handbook” for lead and oakum calked joints.

C. Hubless, cast iron piping shall be joined in accordance with CISPI’s

“Cast Iron Soil Pipe and Fittings Handbook” for hubless piping coupling joints.

D. For threaded joints, thread pipe with tapered pipe threads according to

ASME B1.20.1. The threads shall be cut full and clean using sharp disc cutters. Threaded pipe ends shall be reamed to remove burrs and restored to full pipe inside diameter. Pipe fittings and valves shall be joined as follows:

1. Apply appropriate tape or thread compound to external pipe threads unless dry seal threading is required by the pipe service

2. Pipe sections with damaged threads shall be replaced with new undamaged sections of pipe at no additional time or cost to

Government.

E. Copper tube and fittings with soldered joints shall be joined according to ASTM B828. A water flushable, lead free flux conforming to ASTM B813 and a lead free alloy solder conforming to ASTM B32 shall be used.

F. For PVC piping, solvent cement joints shall be used for joints. All surfaces shall be cleaned and dry prior to applying the primer and solvent cement. Installation practices shall comply with ASTM F402. The joint shall conform to ASTM D2855 and ASTM D2665 appendices.

3.3 SPECIALTY PIPE FITTINGS

A. Transition coupling shall be installed at pipe joints with small differences in pipe outside diameters.

B. Dielectric fittings shall be installed at connections of dissimilar metal piping and tubing.

3.4 PIPE HANGERS, SUPPORTS AND ACCESSORIES

A. All piping shall be supported according to the IPC, Section 22 05 11, COMMON WORK RESULTS FOR PLUMBING, and these specifications.

B. Hangers, supports, rods, inserts and accessories used for Pipe supports shall be shop coated with zinc Chromate primer paint. Electroplated copper hanger rods, hangers and accessories may be used with copper tubing.

C. Horizontal piping and tubing shall be supported within 300 mm (12 inches) of each fitting or coupling.

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D. Horizontal cast iron piping shall be supported with the following maximum horizontal spacing and minimum hanger rod diameters:

1. NPS 1-1/2 to NPS 2 (DN 40 to DN 50): 1500 mm (60 inches) with 10 mm

(3/8 inch) rod.

2. NPS 3 (DN 80): 1500 mm (60 inches) with 15 mm (1/2 inch) rod.

3. NPS 4 to NPS 5 (DN 100 to DN 125): 1500 mm (60 inches) with 18 mm

(5/8 inch) rod.

4. NPS 6 to NPS 8 (DN 150 to DN 200): 1500 mm (60 inches) with 20 mm

(3/4 inch) rod.

5. NPS 10 to NPS 12 (DN 250 to…

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