10-331100 - Water Utility Piping.pdf

Salt Lake School District – Nibley Park School

331100 - 1 Water Utility Piping

SECTION 331100 – WATER UTILITY PIPING

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

B. Codes and Standards:

1. Plumbing Code Compliance: Comply with applicable portions of National Standard

Plumbing Code pertaining to selection and installation of potable water system materials and products.

2. Water Purveyor Compliance: Comply with requirements of Purveyor supplying water to project, obtain required permits and inspections.

3. NFPA Compliance: Install fire water systems in accordance with NFPA 24 "Standard for Installation of Private Fire Service Mains and Their Appurtenances".

4. Local Fire Department/Marshall Regulations: Comply with governing regulations pertaining to hydrants, including hose unit threading and similar matching of connections.

5. UL Compliance: Provide fire hydrants that comply with UL 246 "Hydrants for Fire-Protection Service", and are listed by UL.

1.2 SUMMARY

A. This Section includes pressure water pipes and fire systems outside the building, with the following components:

1. Special fittings for expansion and deflection.

2. Pipes and valves.

3. Fire Hydrants.

1.3 DEFINITIONS

A. PVC: Polyvinyl chloride plastic.

B. DI: Ductile Iron pressure pipe.

1.4 PERFORMANCE REQUIREMENTS

A. Pressure Rating: 175 psi static water pressure for all pipes and fittings. Pipe joints shall be water tight.

1.5 SUBMITTALS

A. Product Data: For the following:

1. Special pipe fittings.

2. Fire hydrants

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3. Valves.

4. Valve boxes and appurtenances.

5. Pipes.

6. Disinfection reports and practices

7. Product Data: Submit manufacturer's technical product data and installation instructions for fire water system materials and products.

8. Maintenance Data: Submit maintenance data and parts lists for fire water system materials and products. Include this data, product data, shop drawings, and record drawings in maintenance manual.

B. Shop Drawings: For the following:

1. Thrust Blocks: Include plans, elevations, sections, details, and forces for thrust blocks for each size of pipe and type of bend.

C. Coordination Drawings: Show pipe sizes, locations, and elevations. Show other piping in same trench and clearances from storm drainage system piping and sewer system piping. Indicate interface and spatial relationship between piping and proximate structures.

D. Profile Drawings: Show system piping in elevation. Draw profiles at horizontal scale of not less than 1 inch equals 50 feet and vertical scale of not less than 1 inch equals 5 feet. Indicate manholes and piping. Show types, sizes, materials, and elevations of other utilities crossing system piping.

E. Field quality-control test reports.

1.6 DELIVERY, STORAGE, AND HANDLING

A. Do not store plastic pipe, and fittings in direct sunlight.

B. Protect pipe, pipe fittings, and seals from dirt and damage.

1.7 PROJECT CONDITIONS

A. Interruption of Water Service: Do not interrupt service to facilities occupied by Owner or others unless permitted under the following conditions and then only after arranging to provide temporary service according to requirements indicated:

1. Notify Architect, Construction Manager, and Owner no fewer than two days in advance of proposed interruption of service. Coordinate interruptions during weekly meetings and at pre-construction meeting.

2. Do not proceed with interruption of service without Architect's, Construction Manager's, and Owner's written permission.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. In other Part 2 articles where titles below introduce lists, the following requirements apply to product selection:

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1. Available Manufacturers: Subject to compliance with requirements, manufacturers offering products that may be incorporated into the Work.

2. Line Markers:

a. Allen Systems Inc.

b. Seton Name Plate Corp.

c. Engineer Approved Equal.

3. Pipe Strainers:

a. "Automatic" Sprinkler Corp. of America; Div. A-T-O Inc.

b. Cleveland Gear Co.; Sub of Vesper Corp.

c. Grinnell Fire Protection Systems Co., Inc.

d. Hersey Products Inc.; Hersey Div.

e. Mueller Steam Specialty; Div. of Core Industries Inc.

f. Neptune Water Meter Co.

g. Rockwell International Corp.; Municipal & Utility Div.

h. Rockwood Systems Corp.

i. Zurn Industries Inc.; Fluid Handling Div.

4. Detector Meter: Not Required

5. Gate Valves:

a. American Valve Mfg. Corp.

b. American-Darling Valve; Div. of American Cast Iron Pipe Co.

c. Clow Corp.; Valve Div.

d. Dresser Mfg. Div. of ITT Grinnell Valve Co. Inc.

e. Fairbanks Co.

f. Kennedy Valve; Div. of ITT Grinnell Valve Co., Inc.

g. Stockham Valves & Fittings Inc.

h. United Brass Works Inc.

i. United States Pipe and Foundry Co.

j. Waterous Co.

6. Check Valves:

a. American-Darling Valve; Div. of American Cast Iron Pipe Co.

b. Clow Corp.; Valve Corp.

c. Fairbanks Co.

d. Kennedy Valve; Div. of ITT Grinnell Valve Co., Inc.

e. Mueller Co.

f. Nibbco Inc.

g. Stockham Valves & Fittings Inc.

h. Walworth Co.

i. Waterous Co.

7. Yard Hydrants

a. Josam Mfg. Co.

b. Smith (Jay R.) Mfg. Co.

c. Zern Industries, Inc.; Hydromechanics Div.

8. Fire Hydrants: Approved by authority having jurisdiction.

9. Backflow Preventors: Approved by authority having jurisdiction.

2.2 IDENTIFICATION

A. Underground –Type Plastic Line Markers: Manufacturer's standard permanent, bright-colored, continuous-printed plastic tape, intended for direct-burial service; not less than 6" wide x 4 mils thick. Provide blue tape with black printing reading "CAUTION WATER LINE BURIED

BELOW".

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B. Nonmetallic Piping Label: If nonmetallic piping is used for water service, provide engraved plastic laminate, label permanently affixed to main electrical meter panel stating "THIS

STRUCTURE HAS A NONMETALLIC WATER SERVICE".

2.3 PIPING MATERIALS

A. Refer to Part 3 "Piping Applications" Article for applications of pipe, fitting, and joining materials.

B. Provide piping materials and factory-fabricated piping products of sizes, types, pressure ratings, and capacities indicated. Where not indicated, provide proper selection as determined by Installer to comply with installation requirements. Provide sizes and types matching piping and equipment connections; provide fittings of materials which match pipe materials used in potable water systems. Where more than one type of materials or products are indicated, selection is Installer's option.

C. Piping: Provide pipe fittings and accessories of same material and weight/class as pipes, with joining method as indicated.

D. Ductile Iron Pipe: Polyethylene wrapped Ductile Iron Class 350, with cement mortar lining complying with AWWA C104.

1. Fitting: Ductile iron AWWA C110; cement lined AWWA C104; and rubber-gasket joints, AWWA C111.

E. PVC Pipe: AWWA C900 Class 200 Pipe for gasketed joints and using ASTM F 477, elastomeric seals.

1. Fittings NPS 4 to NPS 8: PVC pressure fittings complying with AWWA C907, for gasketed joints and using ASTM F 477, elastomeric seals.

2. Fittings NPS 10 and Larger: Ductile-iron, compact fittings complying with AWWA C153, for push-on joints and using AWWA C111, rubber gaskets.

2.4 WATER METER

A. Water Meter, Meter Set and lid will be provided by water purveyor after payment of connection fees.

B. Contractor to supply concrete meter box and accessories needed to make installation of water meter.

2.5 VALVES

A. Gate Valves: UL-listed, 175 psi working pressure for 12" and smaller, 150 psi for sizes larger than 12". Threaded, flanged, hub, or other end configurations to suit size of valve and piping connection. Inside screw type for use with indicator post, iron body bronze mounted, non- rising stem, solid wedge disc.

B. Check Valves: UL-listed, 175 psi working pressure for 2" through 12", 150 psi for sizes larger than 12". Swing type, iron body bronze mounted with metal-to-metal or rubber-faced checks.

Threaded, flanged, or hub end, to suit size and piping connections.

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2.6 FIRE HYDRANT

A. Provide cast-iron body fire hydrants, compression type, opening against pressure and closing with pressure, base valve design, 200 psi working pressure, with 1/4" gage tapping and bronze plug in standpipe, conforming to the latest edition of AWWA C-502, "Dry Barrel Fire Hydrants."

Hydrants shall be of the type required by the local water purveyor in who’s jurisdiction the hydrant is being installed.

B. Features: Provide the following features:

1. Size: 5" valve opening.

2. Direction to Open Hydrant: Left.

3. Size and Shape of Operating and Cap Nuts: Pentagon 1-1/2" point to flat.

4. Hose Nozzles: 2-1/2" National Standard Thread cap and chain.

5. Pumper Nozzles: 5" National Standard Thread cap and chain.

6. Depth of Trench: 4'-6".

7. Connnection to Main: 6" mechanical joint.

2.7 ACCESSORIES

A. Anchorages: Provide anchorages for tees, wyes, crosses, plugs, caps, bends, valves, and hydrants. After installation, apply full coat of asphalt or other acceptable corrosion-retarding material to surfaces of ferrous anchorages.

B. Clamps, Straps, and Washers: Steel, ASTM A 506.

C. Rods: Steel, ASTM A 575.

D. Rod Couplings: Malleable-iron, ASTM A 197.

E. Bolts: Steel, ASTM A 307.

F. Cast-Iron Washers: Gray-iron, ASTM A 126.

G. Thrust Restraints: All joints requiring a thrust blocking shall also be secured with mechanical joint restraints in addition to thrust blocks. Mega-Lug type fittings are acceptable upon submittal and approval by the engineer. Concrete shall be, 3,000 psi. AWWA compliant or as otherwise noted in drawings or by the local water purveyor, whichever is more stringent.

2.8 CONCRETE

A. General: Cast-in-place concrete according to ACI 318/318R, ACI 350R, and the following:

1. Cement: ASTM C 150, Type II.

2. Fine Aggregate: ASTM C 33, sand.

3. Coarse Aggregate: ASTM C 33, crushed gravel.

4. Water: Potable.

B. Thrust Blocks, Hydrant Supports, and Pipe Supports: Portland cement design mix, 3000 psi minimum, with 0.58 maximum water-cementitious materials ratio. All water pipe shall be secured at horizontal and vertical bends, tees, plugged tees, reducers and plugs with both thrust blocks and a mechanical joint restraint appropriate for pipe material being installed.

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PART 3 - EXECUTION

3.1 Examination: Examine areas and conditions under which potable water system's materials and products are to be installed. Do not proceed with work until unsatisfactory conditions have been corrected in manner acceptable to Installer.

3.2 EARTHWORK

A. Excavation trenching, and backfilling are specified in Division 31 Section "Earth Moving."

3.3 INSTALLATION

A. Identification: During back-filling/top-soiling of underground fire water piping systems, install continuous underground-type plastic line marker, located directly over buried line at 6" to 8" below finished grade. If pvc pipe is used, install a tracer wire along the top of the pipe, secured with tape, and extending to fire hydrants and valves.

B. Pipe and pipe fittings:

1. Pipe: Install in accordance with AWWA C600 "Standard for Installation of Ductile-Iron

Water Mains and Their Appurtenances".

2. Depth of Cover: Provide minimum depth of cover over underground piping in accordance with NFPA 24, Figure A-8-11 "Recommended Depth of Cover Above Top of Underground Yard Mains" or 60" below finish grade, whichever is greater.

C. Piping Specialties:

1. Pipe Line Strainers: Install as indicated, with valved blowoff piped to drain.

D. Meters: Install as indicated with shutoff valve on either side of meter and valved bypass full line size.

E. Valves: Provide post indicator for control valves.

1. Shutoff Valves: Install shutoff valve ahead of each hydrant.

F. Hydrants: Install fire hydrants in accordance with AWWA M17 "Installation, Operation, and Maintenance of Fire Hydrants".

1. Location: Install fire hydrants minimum of 40'-0" from building outside wall, as indicated, or if not shown.

2. Face hydrants towards drive.

3. Place hydrants so that base of hydrant is even to 6-inches above adjacent top back of curb.

3.4 PIPING APPLICATIONS

A. Pipe:

1. Ductile Iron Pipe: Install in accordance with AWWA C600 "standard for installation of ductile-iron water mains and their appurtenances" and in accordance with instructions from water purveyor.

2. Copper Tube: Install in accordance with CDA "Copper Tube Handbook".

3. PVC Pressure pipe, PVC pressure fittings, gaskets, and gasketed joints.

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B. Depth of Cover: Provide minimum cover over piping of 12" below average local frost depth or 42" below finished grade, whichever is greater.

C. Water Main Connection: Arrange and pay for tap in water main, of size and in location as indicated, from water Purveyor.

D. Water Service Termination: Terminate potable water piping 5'-0" from building foundation in location and invert as indicated. Provide temporary pipe plug for piping extension into building.

1. Mark location with surface marker.

3.5 PIPING INSTALLATION

A. General Locations and Arrangements: Drawing plans and details indicate general location and arrangement of underground water pipes. Location and arrangement of piping layout take design considerations into account. Install piping as indicated, to extent practical. Where specific installation is not indicated, follow piping manufacturer's written instructions.

B. Install proper size increasers, reducers, and couplings where different sizes or materials of pipes and fittings are connected. Reducing size of piping in direction of flow is prohibited.

C. Tunneling: Install pipe under streets or other obstructions that cannot be disturbed by tunneling, jacking, or a combination of both.

D. Install piping according to the following:

1. Install piping with restrained joints at tee fittings and at horizontal and vertical changes in direction. Use corrosion-resistant rods, pipe or fitting manufacturer's proprietary restraint system, or cast-in-place concrete supports or anchors.

2. Install piping with line and grade as indicated or below frost line if not inidcated.

3. Install ductile-iron pressure piping according to AWWA C600 or AWWA M41.

4. Install ductile-iron special fittings according to AWWA C600.

5. Install PVC pressure piping according to AWWA M23 or ASTM D 2774 and

ASTM F 1668.

6. Install PVC water-service piping according to ASTM D 2774 and ASTM F 1668.

3.6 INSTALLATION OF VALVES

A. Install valves with stems pointing up. Provide valve box over underground valves.

3.7 INSTALLATION OF WATER METER AND VAULT

A. Install Water Meter and Vault to comply with City Water Department Standards.

3.8 PIPE JOINT CONSTRUCTION

A. Basic pipe joint construction is specified in Division 33 Section "Common Work Results for Utilities." Where specific joint construction is not indicated, follow piping manufacturer's written instructions.

B. Join pressure piping according to the following:

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1. Join ductile-iron pressure piping according to AWWA C660 or AWWA M41 for push-on joints.

2. Join ductile-iron special fittings according to AWWA C660 or AWWA M41 for push-on joints.

3. Join PVC pressure piping according to AWWA M23 for gasketed joints.

4. Join PVC water-service piping according to ASTM D 2855 for solvent-cemented joints.

C. Join dissimilar pipe materials with pressure-type couplings.

3.9 FIELD QUALITY CONTROL

A. Piping Tests: Conduct piping tests before joints are covered, and after thrust blocks have sufficiently hardened. Fill pipeline with water 24-hrs prior to testing, and apply test pressure to stabilize system.

B. Hydrostatic Tests: Test at not less than 200 psi for 2-hrs, or at 50 psi above maximum static pressure if it is greater than 150 psi.

1. Test fails if leakage exceeds 2-qts per hour per 100 gaskets or joints irrespective of pipe diameter.

2. Increase pressure in 50 psi increments and inspect each joint between increments. Hold at test pressure for one hour, decrease to 0 psi. Slowly increase again to test pressure and hold for one more hour.

C. Operating Tests: Open and close all valves and hydrants under system water pressure. Check dry barrel hydrants for proper drainage.

1. For systems with fire pumps, run pumps during operating tests.

3.10 ADJUSTING AND CLEANING

A. Disinfection of Potable Water System: Flush pipe system with clean potable water until no dirty water appears at point of outlet. Fill system with water-chlorine solution containing at least 50 ppm of chlorine. Valve off system and let stand for 24- hrs minimum. Flush with clean potable water until no chlorine remains in water coming from system.

1. Repeat procedure if contamination is present in bacteriological examination.

B. Disinfection of Water Mains: Flush and disinfect in accordance with AWWA C651 "Standard for Disinfecting Water Mains".

1. Contractor shall submit written verification to Project Manager stating, Disinfection has been completed in strict compliance with specification for this project and with jurisdiction having authority over water system.

3.11 ADJUSTING AND CLEANING

A. Flushing: Flush underground mains and lead-in connections to sprinkler risers before connection is made to sprinklers, standpipes, or other fire protection system piping.

1. Flush at flow rate not less than that indicated in NFPA 24, or at hydraulically calculated water demand rate of the system, whichever is greater.

B. Adjusting: adjust fire hydrants to face street and be have base 2-6 inches above adjacent curb and gutter.

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3.12 CLOSING ABANDONED WATER SYSTEMS

A. Abandoned Piping: Close open ends of abandoned underground piping indicated to remain in place. Include closures strong enough to withstand hydrostatic and earth pressures that may result after ends of abandoned piping have been closed. Use either procedure below:

1. Close open ends of piping with at least 8-inch-thick, brick masonry bulkheads.

2. Close open ends of piping with threaded metal caps, plastic plugs, or other acceptable methods suitable for size and type of material being closed. Do not use wood plugs.

B. Backfill to grade according to Division 31 Section "Earth Moving."

END OF SECTION 331100

B. Thrust Blocks, Hydrant Supports, and Pipe Supports: Portland cement design mix, 3000 psi minimum, with 0.58 maximum water-cementitious materials ratio. All water pipe shall be secured at horizontal and vertical bends, tees, plugged tees, reducers ...

C. Join dissimilar pipe materials with pressure-type couplings.

B. Adjusting: adjust fire hydrants to face street and be have base 2-6 inches above adjacent curb and gutter.

B. Backfill to grade according to Division 31 Section "Earth Moving."