VA 22 11 00-2011 FACILITY WATER DISTRIBUTION.pdf

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1、05-11 22 11 00 - 1 SECTION 22 11 00 FACILITY WATER DISTRIBUTION SPEC WRITER NOTE: Delete between /-/ if not applicable to project. Also delete any other item or paragraph not applicable in the section and renumber the paragraphs. PART 1 - GENERAL 1.1 DESCRIPTION A. Domestic water systems, including

2、piping, equipment and all necessary accessories as designated in this section. 1.2 RELATED WORK A. Section 07 84 00, FIRESTOPPING: Penetrations in rated enclosures B. Section 09 91 00, PAINTING: Preparation and finish painting and identification of piping systems. C. Section 22 05 11, COMMON WORK RE

3、SULTS FOR PLUMBING. D. Section 23 07 11, HVAC, PLUMBING, AND BOILER PLANT INSULATION, PIPE INSULATION. E. SECTION 22 08 00, COMMISSIONING OF PLUMBING SYSTEMS: Requirements for commissioning, systems readiness checklist, and training. 1.3 SUBMITTALS A. Submit in accordance with Section 01 33 23, SHOP

4、 DRAWINGS, PRODUCT DATA, AND SAMPLES. B. Manufacturers Literature and Data: 1. All items listed in Part 2 - Products. 1.4 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 desi

5、gnation only. B. American National Standards Institute (ANSI): American Society of Mechanical Engineers (ASME): (Copyrighted Society) A13.12007 . Scheme for Identification of Piping Systems B16.3-2006 . Malleable Iron Threaded Fittings Classes 150 and 300 B16.9-2007. Gray Iron Threaded Fittings Clas

6、ses 125 and 250 B16.9-2007 . Factory-Made Wrought Butt Welding Fittings ANSI/ASME B16.11-2009 Forged Fittings, Socket-Welding and Threaded ANSI/ASME Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-05-11 22 11 00 - 2 B16.12-2009 . Cast Iron Threaded D

7、rainage Fittings ANSI/ASME B16.15-2006 . Cast Bronze Threaded Fittings Classes 125 and 250 ANSI/ASME B16.18-01 (R2005) Cast Copper Alloy Solder-Joint Pressure Fittings ANSI/ASME B16.22-01 (R2005) Wrought Copper and Copper Alloy Solder Joint Pressure Fittings ANSI/ASME Element ANSI/ASME NSF/ANSI 61 D

8、rinking Water System Components - Health Effects C. American Society for Testing and Materials (ASTM): A47/A47M-99(2009) Ferritic Malleable Iron Castings Revision 1989 A53/A53M-07 Pipe, Steel, Black And Hot-Dipped, Zinc-coated Welded and Seamless A183-03(2009) Carbon Steel Track Bolts and Nuts A2691

9、0 Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service A312/A312M-09 Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes A403/A403M-10a . Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings A536-84(2009)

10、 Ductile Iron Castings A733-03(2009) Welded and Seamless Carbon Steel and Austenitic Stainless Steel Pipe Nipples B32-08 . Solder Metal B61-08 . Steam or Bronze Castings B62-09 . Composition Bronze or Ounce Metal Castings B75-02 . Seamless Copper Tube B88-09 . Seamless Copper Water Tube B300-10 AWWA

11、 Standard for Hypochlorites B301-10 AWWA Standard for Liquid Chlorine B584-09a . Copper Alloy Sand Castings for General Applications Revision A B687-99(2005) e1 . Brass, Copper, and Chromium-Plated Pipe Nipples D1785-06 . Standard Specification for Poly (Vinyl Chloride) (PVC) Plastic Pipe, Schedules

12、 40, 80, and 120 D2000-08 . Rubber Products in Automotive Applications Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-05-11 22 11 00 - 3 D4101-09 . Propylene Plastic Injection and Extrusion Materials D2447-03 . Polyethylene (PE) Plastic Pipe, Schedu

13、le 40 and 80, Based on Outside Diameter D2564-04(2009) e1 Solvent Cements for Poly (Vinyl Chloride) (PVC) Plastic Pipe and Fittings D4101-09 . Propylene Plastic Injection and Extrusion Materials E1120-08 . Standard Specification For Liquid Chlorine E1229-08 . Standard Specification For Calcium Hypoc

14、hlorite D. American Water Works Association (AWWA): C110-08 Ductile Iron and Gray Iron Fittings - 75 mm thru 1200 mm (3 inch thru 48 inches) for Water and other liquids AWWA/ANSI C151/A21.51-09 . Ductile-Iron Pipe, Centrifugally Cast in Metal Molds or Sand-Lined Molds, for Water or Other Liquids AWW

15、A/ ANSI C153/A21.53-06 . AWWA Standard for Ductile-Iron Compact Fittings for Water Service AWWA/ANSI C203-08 Coal-Tar Protective Coatings and Linings for Steel Water Pipelines - Enamel and Tape - Hot Applied AWWA/ANSI C213-07 Fusion Bonded Epoxy Coating For The Interior 80 mm (3 inches) and larger,

16、cast iron or semi-steel. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-05-11 22 11 00 - 8 2.7 DIELECTRIC FITTINGS A. Provide dielectric couplings or unions between ferrous and non-ferrous pipe. 2.8 STERILIZATION CHEMICALS A. Hypochlorites ANSI/AWWA

17、 B300-10 B. Liquid Chlorine ANSI/AWWA B301-10 2.9 WATER HAMMER ARRESTER: A. Closed copper tube chamber with permanently sealed 410 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 b

18、e designed in accordance with ASSE 1010 for sealed wall installations without an access panel. Size and install in accordance with Plumbing and Drainage Institute requirements (PDI WH 201). Provide water hammer arrestors at: 1. All solenoid valves. 2. All groups of two or more flush valves. 3. All q

19、uick opening or closing valves. 4. All medical washing equipment. 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, ca

20、binets 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 full size after cutting. 3. All pipe runs shall be laid out to avoid

21、interference with other work. 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 International Plumbing Code, Chapter No. 3. b. Shop Painting and Plating: Hangers, supports, rods, ins

22、erts and accessories used for pipe supports shall be shop coated with red Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-05-11 22 11 00 - 9 lead or zinc chromate primer paint. Electroplated copper hanger rods, hangers and accessories may be used wit

23、h copper tubing. c. Floor, Wall and Ceiling Plates, Supports, Hangers: 1) Solid or split unplated 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 continu

24、ous 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) Riser Clamps: Malleable iron or steel. 8) Rollers: Cast iron. 9) Self-drilling type expansion shields shal

25、l be “Phillips“ type, with case hardened steel expander plugs. 10) Hangers and supports utilized with insulated pipe and tubing shall have 180 degree (min.) metal protection shield Centered on and welded to the hanger and support. The shield shall be 4 inches in length and be 16 gauge steel. The shi

26、eld shall be sized for the insulation. 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 m (20 feet) for cast iron pipe additional support shall be provided in the

27、 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 restra

28、int length design and type of selected restraints. 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. Fire Stopping: Where pipes pass through fire partitions, fi

29、re walls, smoke partitions, or floors, install a fire stop that provides an effective barrier against the spread of fire, smoke Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-05-11 22 11 00 - 10 and gases as specified in Section 07 84 00, FIRESTOPPI

30、NG. Completely fill and seal clearances between raceways and openings with the fire stopping 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. B. Piping shall conform to th

31、e following: 1. Domestic Water: a. 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. b. Connect branch lines at bottom of main serving fixtures below and pitch down so that main ma

32、y 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. B. Potable Water System: Test after installation of piping and domestic water heaters, but before piping is conceal

33、ed, before covering is applied, and before plumbing fixtures are connected. Fill systems with water and maintain hydrostatic pressure of 690 kPa (100 psi) 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 pipi

34、ng being tested. C. Reagent Grade Water Systems: Fill system with water and maintain hydrostatic pressure of 690 kPa (100 psi) gage during inspection and prove tight. D. All Other Piping Tests: Test new installed piping under 1 1/2 times actual operating conditions and prove tight. SPEC WRITER NOTE:

35、 Following paragraph shall be included only for new buildings or major additions. 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 hypochlorites fo

36、r sterilization. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-05-11 22 11 00 - 11 3.4 COMMISSIONING A. Provide commissioning documentation accordance with the requirements of Section 22 08 00 COMMISSIONING OF PLUMBING SYSTEMS for all inspection, s

37、tartup, and contractor testing required above and required by the System Readiness Checklist provided by the Commissioning Agent. B. Components provided under this section of the specification will be tested as part of a larger system. Refer to Section 22 08 00 COMMISSIONING OF PLUMBING SYSTEMS and related sections for contractor responsibilities for system commissioning. - - - E N D - - - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-