bafbrwhq15140.pdf

SECTION 15140 REPAIR WING HEADQUARTERS, BLDG 706

DOMESTIC WATER PIPING CRWU 06-2071

06/09/09 15140-1 BUCKLEY AFB

SECTION 15140 - DOMESTIC WATER PIPING

PART 1 - GENERAL

1.01 SUMMARY:

A. Section Includes:

1. Aboveground domestic water pipes, tubes, fittings, and specialties inside the building.

2. Specialty valves.

3. Flexible connectors.

1.02 REFERENCES:

A. Applicable Standards (latest edition):

1. American Water Works Association (AWWA):

a. C651 - Disinfecting Water Mains.

b. C652 - Disinfection of Water-Storage Facilities.

2. American Welding Society (AWS):

a. A5.8/A5.8M - Filler Metals for Brazing and Braze Welding.

3. ASME International (ASME):

a. B1.20.1 - Pipe Threads, General Purpose, Inc.

b. B16.18 - Cast Copper Alloy Solder Joint Pressure Fittings.

c. B16.21 - Nonmetallic Flat Gaskets for Pipe Flanges.

d. B16.22 - Wrought Copper and Copper Alloy Solder Joint Pressure Fittings.

e. B16.24 - Cast Copper Alloy Pipe Flanges and Flanged Fittings: Classes 150, 300, 400, 600, 900, 1500, and 2500.

f. B16.39 - Malleable Iron Threaded Pipe Unions.

g. B18.2.1 - Square and Hex Bolts and Screws, Inch Series.

h. B31.9 - Building Services Piping.

4. ASTM International (ASTM):

a. A47/A47M - Ferritic Malleable Iron Castings.

b. A53/A53M - Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless.

c. A106/A106M - Seamless Carbon Steel Pipe for High-Temperature Service.

d. B32 - Solder Metal.

e. B75 - Seamless Copper Tube.

f. B75M - Seamless Copper Tube [Metric].

g. B88 - Seamless Copper Water Tube.

h. B88M - Seamless Copper Water Tube [Metric].

i. B584 - Copper Alloy Sand Castings for General Applications.

j. B813 - Liquid and Paste Fluxes for Soldering of Copper and Copper Alloy Tube.

k. B828 - Practice for Making Capillary Joints by Soldering of Copper and Copper

Alloy Tube and Fittings.

l. C1107 - Practice for Making Capillary Joints by Soldering of Copper and Copper

Alloy Tube and Fittings.

m. C1107 - Packaged Dry, Hydraulic-Cement Grout (Nonshrink).

n. F2014 - Non-Reinforced Extruded Tee Connections for Piping Applications.

5. Copper Development Association Inc.

a. Copper Tube Handbook.

6. Manufacturers Standardization Society of the Valve and Fittings Industry Inc. (MSS):

a. SP-69 - Pipe Hangers and Supports - Selection and Application.

SECTION 15140 REPAIR WING HEADQUARTERS, BLDG 706

BUCKLEY AFB 15140-2 06/09/09

b. 61 - Drinking Water System Components - Health Effects.

7. American Society of Civil Engineers/Structural Engineering Institute (ASCE/SEI):

a. 7 - Minimum Design Loads for Buildings and Other Structures.

1.03 PERFORMANCE REQUIREMENTS:

A. Seismic Performance: Domestic water piping and support and installation shall withstand effects of earthquake motions determined according to ASCE/SEI 7.

1.04 SUBMITTALS:

A. General: Submit each item in this Article in accordance with SECTION 15050 - BASIC

MECHANICAL MATERIALS AND METHODS.

B. Product Data: For the following products:

1. Specialty valves.

2. Flexible connectors.

3. Schedule of Materials: Submit schedule of pipe materials used for each application.

C. Water Samples: Specified in "Cleaning" Article.

D. Field quality-control reports.

1.05 QUALITY ASSURANCE:

A. Piping materials shall bear label, stamp, or other markings of specified testing agency.

B. Comply with NSF 61 for potable domestic water piping and components.

1.06 PROJECT CONDITIONS:

A. Interruption of Existing Water Service: Do not interrupt water service to facilities occupied by

Owner or others unless permitted under the following conditions and then only after arranging to provide temporary water service according to requirements indicated:

1. Notify Contracting Officer no fewer than two days in advance of proposed interruption of water service.

2. Do not proceed with interruption of water service without Contracting Officer written permission.

1.07 COORDINATION:

A. Coordinate sizes and locations of concrete bases with actual Equipment provided.

PART 2 - PRODUCTS

2.01 PIPING MATERIALS:

A. Comply with requirements in "Piping Schedule" Article for applications of pipe, tube, fitting materials, and joining methods for specific services, service locations, and pipe sizes.

2.02 COPPER TUBE AND FITTINGS:

A. Hard Copper Tube: ASTM B88, Type L (ASTM B88M, Type B) water tube, drawn temper.

1. Cast-Copper Solder-Joint Fittings: ASME B16.18, pressure fittings.

2. Wrought-Copper Solder-Joint Fittings: ASME B16.22, wrought-copper pressure fittings.

3. Bronze Flanges: ASME B16.24, Class 150, with solder-joint ends.

4. Copper Unions: MSS SP-123, cast-copper-alloy, hexagonal-stock body, with ball-and-socket, metal-to-metal seating surfaces, and solder-joint or threaded ends.

5. Copper-Tube Extruded-Tee Connections:

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06/09/09 15140-3 BUCKLEY AFB

a. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

(1) T-DRILL Industries Inc.

b. Description: Tee formed in copper tube according to ASTM F 2014.

6. Grooved-Joint Copper-Tube Appurtenances:

a. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

(1) Anvil International.

(2) Victaulic Company.

b. Copper Grooved-End Fittings: ASTM B75 (ASTM B75M) copper tube or ASTM B584 bronze castings.

c. Grooved-End-Tube Couplings: Copper-tube dimensions and design similar to AWWA C606. Include ferrous housing sections, EPDM-rubber gaskets suitable for hot and cold water, and bolts and nuts.

2.03 PIPING JOINING MATERIALS:

A. Pipe-Flange Gasket Materials: AWWA C110, rubber, flat face, 1/8 inch (3.2 mm) thick or

ASME B16.21, nonmetallic and asbestos free, unless otherwise indicated; full-face or ring type unless otherwise indicated.

B. Metal, Pipe-Flange Bolts and Nuts: ASME B18.2.1, carbon steel unless otherwise indicated.

C. Solder Filler Metals: ASTM B32, lead-free alloys. Include water-flushable flux according to

ASTM B813.

2.04 SPECIALTY VALVES:

A. Comply with requirements in SECTION 15110 - VALVES for general-duty metal valves.

B. Comply with requirements in SECTION 15145 - DOMESTIC WATER PIPING

SPECIALTIES for balancing valves, drain valves, backflow preventers, and vacuum breakers.

2.05 FLEXIBLE CONNECTORS:

A. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

1. Hyspan Precision Products, Inc.

2. Metraflex, Inc.

B. Bronze-Hose Flexible Connectors: Corrugated-bronze tubing with bronze wire-braid covering and ends brazed to inner tubing.

1. Working-Pressure Rating: Minimum 200 psig (1380 kPa).

2. End Connections NPS 2 (DN 50) and Smaller: Threaded copper pipe or plain-end copper tube.

3. End Connections NPS 2-1/2 (DN 65) and Larger: Flanged copper alloy.

C. Stainless-Steel-Hose Flexible Connectors: Corrugated-stainless-steel tubing with stainless-steel wire-braid covering and ends welded to inner tubing.

1. Working-Pressure Rating: Minimum 200 psig (1380 kPa).

2. End Connections NPS 2 (DN 50) and Smaller: Threaded steel-pipe nipple.

3. End Connections NPS 2-1/2 (DN 65) and Larger: Flanged steel nipple.

PART 3 - EXECUTION

3.01 PIPING INSTALLATION:

SECTION 15140 REPAIR WING HEADQUARTERS, BLDG 706

BUCKLEY AFB 15140-4 06/09/09

A. Drawing plans, schematics, and diagrams indicate general location and arrangement of domestic water piping. Indicated locations and arrangements are used to size pipe and calculate friction loss, expansion, and other design considerations. Install piping as indicated unless deviations to layout are approved on Coordination Drawings.

B. Install copper tubing under building slab according to CDA's "Copper Tube Handbook."

C. Install shutoff valve, hose-end drain valve, strainer, pressure gauge, and test tee with valve, inside the building at each domestic water service entrance. Comply with requirements in SECTION 15122 - METERS AND GAUGES for pressure gauges and SECTION 15145 - DOMESTIC WATER PIPING SPECIALTIES for drain valves and strainers.

D. Install shutoff valve immediately upstream of each dielectric fitting.

E. Install water-pressure-reducing valves downstream from shutoff valves. Comply with requirements in SECTION 15145 - DOMESTIC WATER PIPING SPECIALTIES for pressure-reducing valves.

F. Install domestic water piping level without pitch and plumb.

G. Install piping concealed from view and protected from physical contact by building occupants unless otherwise indicated and except in equipment rooms and service areas.

H. Install piping indicated to be exposed and piping in equipment rooms and service areas at right angles or parallel to building walls. Diagonal runs are prohibited unless specifically indicated otherwise.

I. Install piping above accessible ceilings to allow sufficient space for ceiling panel removal, and coordinate with other services occupying that space.

J. Install piping adjacent to equipment and specialties to allow service and maintenance.

K. Install piping to permit valve servicing.

L. Install nipples, unions, special fittings, and valves with pressure ratings the same as or higher than system pressure rating used in applications below unless otherwise indicated.

M. Install piping free of sags and bends.

N. Install fittings for changes in direction and branch connections.

O. Install unions in copper tubing at final connection to each piece of equipment, machine, and specialty.

P. Install thermostats in hot-water circulation piping. Comply with requirements in SECTION

15122 - METERS AND GAUGES for thermometers.

Q. Install thermometers on inlet and outlet piping from each water heater. Comply with requirements in SECTION 15122 - METERS AND GAUGES for thermometers.

3.02 JOINT CONSTRUCTION:

A. Ream ends of pipes and tubes and remove burrs. Bevel plain ends of steel pipe.

B. Remove scale, slag, dirt, and debris from inside and outside of pipes, tubes, and fittings before assembly.

C. Threaded Joints: Thread pipe with tapered pipe threads according to ASME B1.20.1. Cut threads full and clean using sharp dies. Ream threaded pipe ends to remove burrs and restore full ID. Join pipe fittings and valves as follows:

D. Apply appropriate tape or thread compound to external pipe threads.

E. Damaged Threads: Do not use pipe or pipe fittings with threads that are corroded or damaged.

F. Soldered Joints: Apply ASTM B813, water-flushable flux to end of tube. Join copper tube and fittings according to ASTM B828 or CDA's "Copper Tube Handbook."

G. Extruded-Tee Connections: Form tee in copper tube according to ASTM F2014. Use tool designed for copper tube; drill pilot hole, form collar for outlet, dimple tube to form seating stop, and braze branch tube into collar.

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H. Copper-Tubing Grooved Joints: Roll groove end of tube. Assemble coupling with housing, gasket, lubricant, and bolts. Join copper tube and grooved-end fittings according to AWWA C606 for roll-grooved joints.

I. Flanged Joints: Select appropriate asbestos-free, nonmetallic gasket material in size, type, and thickness suitable for domestic water service. Join flanges with gasket and bolts according to

ASME B31.9.

J. Dissimilar-Material Piping Joints: Make joints using adapters compatible with materials of both piping systems.

3.03 VALVE INSTALLATION:

A. General-Duty Valves: Comply with requirements in SECTION 15110 - VALVES for valve installations.

B. Install shutoff valve close to water main on each branch and riser serving plumbing fixtures or equipment, on each water supply to equipment, and on each water supply to plumbing fixtures that do not have supply stops. Use ball or gate valves for piping NPS 2 (DN 50) and smaller.

Use butterfly or gate valves for piping NPS 2-1/2 (DN 65) and larger.

C. Install drain valves for equipment at base of each water riser, at low points in horizontal piping, and where required to drain water piping. Drain valves are specified in SECTION 15145 -

DOMESTIC WATER PIPING SPECIALTIES.

1. Hose-End Drain Valves: At low points in water mains, risers, and branches.

2. Stop-and-Waste Drain Valves: Instead of hose-end drain valves where indicated.

D. Install balancing valve in each hot-water circulation return branch and discharge side of each pump and circulator. Set balancing valves partly open to restrict but not stop flow. Use ball valves for piping NPS 2 (DN 50) and smaller and butterfly valves for piping NPS 2-1/2 (DN 65) and larger. Comply with requirements in SECTION 15145 - DOMESTIC WATER PIPING SPECIALTIES for balancing valves.

3.04 FLEXIBLE CONNECTOR INSTALLATION:

A. Install flexible connectors in suction and discharge piping connections to each domestic water pump and in suction and discharge manifold connections to each domestic water booster pump.

B. Install bronze-hose flexible connectors in copper domestic water tubing.

C. Install stainless-steel-hose flexible connectors in steel domestic water piping.

3.05 HANGER AND SUPPORT INSTALLATION:

A. Comply with requirements in SECTION 15071 - MECHANICAL VIBRATION AND

SEISMIC CONTROLS for seismic-restraint devices.

B. Comply with requirements in SECTION 15060 - HANGERS AND SUPPORTS for pipe hanger and support products and installation.

1. Vertical Piping: MSS Type 8 or 42, clamps.

2. Individual, Straight, Horizontal Piping Runs:

a. 100 Feet (30 m) and Less: MSS Type 1, adjustable, steel clevis hangers.

b. Longer Than 100 Feet (30 m): MSS Type 43, adjustable roller hangers.

c. Longer Than 100 Feet (30 m) If Indicated: MSS Type 49, spring cushion rolls.

3. Multiple, Straight, Horizontal Piping Runs 100 Feet (30 m) or Longer: MSS Type 44, pipe rolls. Support pipe rolls on trapeze.

4. Base of Vertical Piping: MSS Type 52, spring hangers.

C. Support vertical piping and tubing at base and at each floor.

SECTION 15140 REPAIR WING HEADQUARTERS, BLDG 706

BUCKLEY AFB 15140-6 06/09/09

D. Rod diameter may be reduced one size for double-rod hangers, to a minimum of 3/8 inch (10 mm).

E. Install hangers for copper tubing with the following maximum horizontal spacing and minimum rod diameters:

1. NPS 3/4 (DN 20) and Smaller: 60 inches (1500 mm) with 3/8-inch (10-mm) rod.

2. NPS 1 and NPS 1-1/4 (DN 25 and DN 32): 72 inches (1800 mm) with 3/8-inch (10-mm) rod.

3. NPS 1-1/2 and NPS 2 (DN 40 and DN 50): 96 inches (2400 mm) with 3/8-inch (10-mm) rod.

4. NPS 2-1/2 (DN 65): 108 inches (2700 mm) with 1/2-inch (13-mm) rod.

5. NPS 3 to NPS 5 (DN 80 to DN 125): 10 feet (3 m) with 1/2-inch (13-mm) rod.

F. Install supports for vertical copper tubing every 10 feet (3 m).

G. Support piping and tubing not listed in this article according to MSS SP-69 and manufacturer's written instructions.

3.06 CONNECTIONS:

A. Drawings indicate general arrangement of piping, fittings, and specialties.

B. Install piping adjacent to equipment and machines to allow service and maintenance.

C. Connect domestic water piping to exterior water-service piping. Use transition fitting to join dissimilar piping materials.

D. Connect domestic water piping to water-service piping with shutoff valve; extend and connect to the following:

1. Water Heaters: Cold-water inlet and hot-water outlet piping in sizes indicated, but not smaller than sizes of water heater connections.

2. Plumbing Fixtures: Cold- and hot-water supply piping in sizes indicated, but not smaller than required by plumbing code. Comply with requirements in DIVISION 15 plumbing fixture Sections for connection sizes.

3. Equipment: Cold- and hot-water supply piping as indicated, but not smaller than equipment connections. Provide shutoff valve and union for each connection. Use flanges instead of unions for NPS 2-1/2 (DN 65) and larger.

3.07 IDENTIFICATION:

A. Identify system components. Comply with requirements in SECTION 15075 -

MECHANICAL IDENTIFICATION for identification materials and installation.

B. Label pressure piping with system operating pressure.

3.08 FIELD QUALITY CONTROL:

A. Perform tests and inspections.

B. Piping Inspections:

1. Do not enclose, cover, or put piping into operation until it has been inspected and approved by authorities having jurisdiction.

2. During installation, notify authorities having jurisdiction at least one day before inspection must be made. Perform tests specified below in presence of authorities having jurisdiction:

a. Roughing-in Inspection: Arrange for inspection of piping before concealing or closing-in after roughing-in and before setting fixtures.

b. Final Inspection: Arrange final inspection for authorities having jurisdiction to observe tests specified below and to ensure compliance with requirements.

SECTION 15140 REPAIR WING HEADQUARTERS, BLDG 706

06/09/09 15140-7 BUCKLEY AFB

3. Reinspection: If authorities having jurisdiction find that piping will not pass tests or inspections, make required corrections and arrange for reinspection.

4. Reports: Prepare inspection reports and have them signed by authorities having jurisdiction.

C. Piping Tests:

1. Fill domestic water piping. Check components to determine that they are not air bound and that piping is full of water.

2. Test for leaks and defects in new piping and parts of existing piping that have been altered, extended, or repaired. If testing is performed in segments, submit a separate report for each test, complete with diagram of portion of piping tested.

3. Leave new, altered, extended, or replaced domestic water piping uncovered and unconcealed until it has been tested and approved. Expose work that was covered or concealed before it was tested.

4. Cap and subject piping to static water pressure of 50 psig (345 kPa) above operating pressure, without exceeding pressure rating of piping system materials. Isolate test source and allow to stand for four hours. Leaks and loss in test pressure constitute defects that must be repaired.

5. Repair leaks and defects with new materials and retest piping or portion thereof until satisfactory results are obtained.

6. Prepare reports for tests and for corrective action required.

D. Domestic water piping will be considered defective if it does not pass tests and inspections.

E. Prepare test and inspection reports.

3.09 ADJUSTING:

A. Perform the following adjustments before operation:

1. Close drain valves, hydrants, and hose bibbs.

2. Open shutoff valves to fully open position.

3. Open throttling valves to proper setting.

4. Adjust balancing valves in hot-water-circulation return piping to provide adequate flow.

a. Manually adjust ball-type balancing valves in hot-water-circulation return piping to provide flow of hot water in each branch.

b. Adjust calibrated balancing valves to flows indicated.

5. Remove plugs used during testing of piping and for temporary sealing of piping during installation.

6. Remove and clean strainer screens. Close drain valves and replace drain plugs.

7. Remove filter cartridges from housings and verify that cartridges are as specified for application where used and are clean and ready for use.

8. Check plumbing specialties and verify proper settings, adjustments, and operation.

3.10 CLEANING:

A. Clean and disinfect potable domestic water piping as follows:

1. Purge new piping and parts of existing piping that have been altered, extended, or repaired before using.

2. Use purging and disinfecting procedures prescribed by authorities having jurisdiction; if methods are not prescribed, use procedures described in either AWWA C651 or AWWA C652 or follow procedures described below:

a. Flush piping system with clean, potable water until dirty water does not appear at outlets.

SECTION 15140 REPAIR WING HEADQUARTERS, BLDG 706

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b. Fill and isolate system according to either of the following:

(1) Fill system or part thereof with water/chlorine solution with at least 50 ppm

(50 mg/L) of chlorine. Isolate with valves and allow to stand for 24 hours.

(2) Fill system or part thereof with water/chlorine solution with at least 200 ppm

(200 mg/L) of chlorine. Isolate and allow to stand for three hours.

c. Flush system with clean, potable water until no chlorine is in water coming from system after the standing time.

d. Submit water samples in sterile bottles to authorities having jurisdiction. Repeat procedures if biological examination shows contamination.

B. Prepare and submit reports of purging and disinfecting activities.

C. Clean interior of domestic water piping system. Remove dirt and debris as work progresses.

3.11 PIPING SCHEDULE:

A. Transition and special fittings with pressure ratings at least equal to piping rating may be used in applications below unless otherwise indicated.

B. Flanges and unions may be used for aboveground piping joints unless otherwise indicated.

C. Fitting Option: Extruded-tee connections and brazed joints may be used on aboveground copper tubing.

D. Aboveground domestic water piping, NPS 2 (DN 50) and smaller, shall be the following:

1. Hard copper tube, ASTM B88, Type L (ASTM B88M, Type B); cast- or wrought- copper solder-joint fittings; and soldered joints.

E. Aboveground domestic water piping, NPS 2-1/2 to NPS 4 (DN 65 to DN 100), shall be the following:

1. Hard copper tube, ASTM B88, Type L (ASTM B88M, Type B); cast- or wrought- copper solder-joint fittings; and soldered joints.

3.12 VALVE SCHEDULE:

A. Drawings indicate valve types to be used. Where specific valve types are not indicated, the following requirements apply:

1. Shutoff Duty: Use ball or gate valves for piping NPS 2 (DN 50) and smaller. Use butterfly, ball, or gate valves with flanged ends for piping NPS 2-1/2 (DN 65) and larger.

2. Throttling Duty: Use ball or globe valves for piping NPS 2 (DN 50) and smaller. Use butterfly or ball valves with flanged ends for piping NPS 2-1/2 (DN 65) and larger.

3. Hot-Water Circulation Piping, Balancing Duty: Memory-stop balancing valves.

4. Drain Duty: Hose-end drain valves.

B. Use check valves to maintain correct direction of domestic water flow to and from equipment.

C. Iron grooved-end valves may be used with grooved-end piping.

END OF SECTION 15140