33 14 13 - Public Water Utility Distribution Piping.pdf

33 14 13 – PUBLIC WATER UTILITY DISTRIBUTION PIPING

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SECTION 33 14 13 – PUBLIC WATER UTILITY DISTRIBUTION PIPING

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Pipe and fittings for public line, including potable water line.

2. Tapping sleeves and valves.

3. Insertion Valve

4. Valves and fire hydrants.

5. Underground pipe markers.

6. Bedding and cover materials.

B. Related Requirements:

1. Section 03 20 00 – Concrete Reinforcing: Reinforcing steel and required supports for cradles and encasements.

2. Section 03 30 00 – Cast-in-Place Concrete: Concrete for cradles and encasements.

3. Section 33 13 00 – Disinfection of Water Utility Distribution: Disinfection of water mains and appurtenances.

4. Section 33 14 17 – Site Water Service Utility Laterals: Water main service connections.

5. Section 33 14 19 – Valves and Hydrants for Water Utility Service: Fire hydrants, valves, and valve boxes for fire hydrant and water main installations.

1.2 REFERENCE STANDARDS

A. American Association of State Highway and Transportation Officials:

1. AASHTO T 180 - Standard Method of Test for Moisture-Density Relations of Soils

Using a 4.54-kg (10-lb) Rammer and a 457-mm (18-in.) Drop.

B. American Society of Mechanical Engineers:

1. ASME B16.1 - Gray Iron Pipe Flanges and Flanged Fittings: Classes 25, 125, and

250.

C. ASTM International:

1. ASTM A36 - Standard Specification for Carbon Structural Steel.

2. ASTM A123 - Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on

Iron and Steel Products.

3. ASTM A307 - Standard Specification for Carbon Steel Bolts, Studs, and Threaded

Rod 60 000 PSI Tensile Strength.

4. ASTM D698 - Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Standard Effort (12 400 ft-lbf/ft3 (600 kN-m/m3).

5. ASTM D1557 - Standard Test Methods for Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 ft-lbf/ft3 (2,700 kN-m/m3).

6. ASTM D3035 - Standard Specification for Polyethylene (PE) Plastic Pipe (DR-PR)

Based on Controlled Outside Diameter.

7. ASTM D3139 - Standard Specification for Joints for Plastic Pressure Pipes Using

Flexible Elastomeric Seals.

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8. ASTM D6938 - Standard Test Method for In-Place Density and Water Content of Soil and Soil-Aggregate by Nuclear Methods (Shallow Depth).

9. ASTM F477 - Standard Specification for Elastomeric Seals (Gaskets) for Joining Plastic Pipe.

D. American Water Works Association:

1. AWWA C104 - Cement-Mortar Lining for Ductile-Iron Pipe and Fittings.

2. AWWA C105 - Polyethylene Encasement for Ductile-Iron Pipe Systems.

3. AWWA C110 - Ductile-Iron and Gray-Iron Fittings.

4. AWWA C111 - Rubber-Gasket Joints for Ductile-Iron Pressure Pipe and Fittings.

5. AWWA C115 - Flanged Ductile-Iron Pipe with Ductile-Iron or Gray-Iron Threaded

Flanges.

6. AWWA C151 - Ductile-Iron Pipe, Centrifugally Cast.

7. AWWA C153 - Ductile-Iron Compact Fittings.

8. AWWA C200 - Steel Water Pipe, 6 In. (150 mm) and Larger.

9. AWWA C203 - Coal-Tar Protective Coatings and Linings for Steel Water Pipelines

- Enamel and Tape - Hot-Applied.

10. AWWA C205 - Cement-Mortar Protective Lining and Coating for Steel Water Pipe

- 4 In. (100 mm) and Larger - Shop Applied.

11. AWWA C206 - Field Welding of Steel Water Pipe.

12. AWWA C207 - Steel Pipe Flanges for Waterworks Service - Sizes 4 In. Through 144

In. (100 mm Through 3,600 mm).

13. AWWA C208 - Dimensions for Fabricated Steel Water Pipe Fittings.

14. AWWA C213 - Fusion-Bonded Epoxy Coating for the Interior and Exterior of Steel

Water Pipelines.

15. AWWA C500 - Metal-Seated Gate Valves for Water Supply Service.

16. AWWA C600 - Installation of Ductile-Iron Mains and Their Appurtenances.

17. AWWA C605 - Underground Installation of Polyvinyl Chloride (PVC) Pressure Pipe and Fittings for Water.

18. AWWA C606 - Grooved and Shouldered Joints.

19. AWWA M6 - Water Meters - Selection, Installation, Testing, and Maintenance.

E. Manufacturers Standardization Society of the Valve and Fittings Industry:

1. MSS SP-60 - Connecting Flange Joints between Tapping Sleeves and Tapping

Valves.

1.3 SUBMITTALS

A. Section 01 33 00 – Submittal Procedures: Requirements for submittals.

B. Product Data: Submit data on pipe materials, pipe fittings, valves, and accessories.

C. Shop Drawings: Indicate piping layout, including piping specialties.

D. Manufacturer's Certificate: Certify that products meet or exceed specified requirements.

1.4 CLOSEOUT SUBMITTALS

A. Section 01 77 00 – Closeout Procedures: Requirements for submittals.

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B. Project Record Documents: Record actual locations of piping mains, valves, connections, thrust restraints, and invert elevations.

C. Identify and describe unexpected variations to subsoil conditions or discovery of uncharted utilities.

1.5 QUALITY ASSURANCE

A. Valves: Mark valve body with manufacturer's name and pressure rating.

B. Design Criteria:

1. Use only one type and class of pipe in any continuous line of waterline, unless otherwise indicated on the Drawings.

2. Use pipe and fittings designed to withstand imposed trench loadings and conditions at the various locations.

1.6 DELIVERY, STORAGE, AND HANDLING

A. Section 01 61 00 – Product Requirements: Requirements for transporting, handling, storing, and protecting products.

B. Deliver and store valves in shipping containers with manufacturer's labeling in place and inspect for damage.

C. Block individual and stockpiled pipe lengths to prevent moving.

D. Do not place pipe or pipe materials on private property or in areas obstructing pedestrian or vehicle traffic.

E. Exercise each manual valve operator through at least two (2) full open and close cycles at least once every two (2) months, or more frequently if required by manufacturer.

F. Thoroughly inspect pipe, pipe linings, fittings, valves, and all related materials for defects prior to being unloaded and again prior to being installed. Repair or replace any defective, damaged, or unsound material, as determined by Engineer, at no additional cost to Owner. Remove defective products and materials from site at Contractor's expense.

G. Store all valves with rubber seats out of sunlight with discs or plugs opened slightly off seat (3 to 5 degrees).

1.7 EXISTING CONDITIONS

A. Field Measurements:

1. Verify field measurements prior to fabrication.

2. Indicate field measurements on Shop Drawings.

PART 2 - PRODUCTS

2.1 GENERAL

A. All piping, fittings, and appurtenances shall be NSF 61 approved/certified.

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2.2 WATER PIPING

A. Ductile-Iron Pipe:

1. Comply with AWWA C151.

2. Bituminous Outside Coating: Comply with AWWA C151.

3. Pipe Mortar Lining:

a. Comply with AWWA C104.

b. Double thickness.

4. Pipe Class:

a. Comply with AWWA C151.

b. Class 52.

5. Fittings:

a. Material: Ductile iron, AWWA C110.

b. Compact Fittings: Comply with AWWA C153.

c. Coating and Lining:

1) Bituminous Coating: Comply with AWWA C110.

2) Cement Mortar Lining: Comply with AWWA C104, double thickness.

6. Joints:

a. Mechanical and Push-on Joints: Comply with AWWA C111.

b. Restrained Joints: Boltless, push-on type, joint restraint independent of joint seal.

2.3 TAPPING SLEEVES AND VALVES

A. Tapping Sleeves:

1. Manufacturers:

a. Kennedy Valve Company

b. Mueller Co.

c. Or approved equal.

2. Description:

a. Material: Stainless Steel

b. Type: Dual compression.

c. Outlet Flange Dimensions and Drilling: Comply with ASME B16.1, Class

200 and MSS SP-60.

B. Tapping Valves:

1. Manufacturers:

a. Kennedy Valve Company

b. Mueller Co.

c. Or approved equal.

2. Description:

a. Comply with AWWA C500.

b. Type: Resilient wedge with non-rising stem.

c. Inlet Flanges: Comply with ASME B16.1, Class 200 and MSS SP-60.

d. Mechanical Joint Outlets: Comply with AWWA C111.

e. Operation:

1) Square operating nut.

2) Opening Direction: Left.

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3. Mark manufacturer's name and pressure rating on valve body.

2.4 TEMPORARY LINE STOPS

A. Manufacturers:

a. JCM Industries.

b. Or approved equal.

B. Description

a. Pressure Rating: 250 psi.

b. Body: 304 Stainless Steel or Epoxy Coated Carbon Steel.

c. Blind Flange and Flange: ANSI Class 150.

d. Completion Plug: Push and Pin Style.

e. Gasket: SBR, NBR, or Buna-N.

2.5 COUPLINGS

A. Manufacturer:

1. Romac.

2. Smith-Blair.

3. Or approved equal.

B. Description:

1. Body: ASTM A36 Steel

2. Restraint Gland: Ductile iron meeting ASTM A536.

3. Gasket: Nitrile (BUNA-N) compounded to resist oil, alkalies, and hydrocarbon fluids.

4. Bolts and nuts: Type 304 or 316 stainless steel

5. Finish: Fusion bonded epoxy coating.

6. Transition couplings must be restrained joint.

2.6 VALVES AND FIRE HYDRANTS

A. Valves and Hydrants: As specified in Section 33 14 19 – Valves and Hydrants for Water Utility Service: Fire hydrants, valves, and valve boxes for fire hydrant and water main installations.

2.7 UNDERGROUND PIPE MARKERS

A. Plastic Ribbon Tape:

1. Refer to 33 05 53 – Identification for Utilities Piping and Equipment.

2.8 VALVE BOXES

A. Manufacturers:

1. Tyler Utilities.

2. Bingham & Taylor.

3. Ford.

4. Or approved equal.

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B. Description:

1. 12-inch Diameter Valves and Smaller:

a. Material: Cast iron.

b. Coating: Tar or asphaltic compound; interior and exterior.

c. Type: Two piece; screw.

2. Lid Inscription: WATER.

2.9 CONCRETE ENCASEMENT AND CRADLES

A. Concrete:

1. As specified in Section 03 30 00 – Cast-in-Place Concrete.

2. Type: reinforced, air entrained.

3. Compressive Strength: 4,000psi at 28 days.

4. Finish: Rough troweled.

B. Concrete Reinforcement: As specified in Section 03 20 00 – Concrete Reinforcing.

2.10 ACCESSORIES

A. Concrete for Thrust Restraints: As specified in Section 03 30 00 – Cast-in-Place Concrete.

B. Steel Rods, Bolt, Lugs, and Brackets:

1. Comply with ASTM A36 or ASTM A307.

2. Grade A carbon steel.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Section 01 73 00 – Execution Requirements: Requirements for installation examination.

B. Verify that existing utility water main size, location, and invert are as indicated on Drawings.

3.2 PREPARATION

A. Section 01 73 00 – Execution Requirements: Requirements for installation preparation.

B. Pipe Cutting:

1. Cut pipe ends square, ream pipe and tube ends to full pipe diameter, and remove burrs.

2. Use only equipment specifically designed for pipe cutting; use of chisels or hand saws is not permitted.

3. Grind edges smooth with beveled end for push-on connections.

C. Remove scale and dirt on inside and outside before assembly.

3.3 INSTALLATION

A. Bedding:

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1. Excavation:

a. Excavate pipe trench as specified in Section 31 23 33 – Trenching and

Backfilling for Utilities for Work of this Section.

b. Hand trim excavation for accurate placement of pipe to elevations as indicated on Drawings.

2. Dewater excavations to maintain dry conditions and to preserve final grades at bottom of excavation.

3. Provide sheeting and shoring as specified in Section 31 23 33 – Trenching and

Backfilling for Utilities.

B. Piping:

1. Install pipe according to AWWA C600.

2. Handle and assemble pipe according to manufacturer instructions and as indicated on Drawings.

3. Steel Rods, Bolt, Lugs, and Brackets: Coat buried steel with one coat of coal tar coating before backfilling.

4. Maintain 10 feet horizontal separation of water main from sewer piping, unless otherwise shown on the Drawings.

5. Install ductile-iron piping and fittings according to AWWA C600.

6. Route pipe in straight line; re-lay pipe that is out of alignment or grade.

7. High Points:

a. Install pipe with no high points.

b. If unforeseen field conditions arise that necessitate high points, install air release valves or blow-off assembly as directed by Engineer.

8. Bearing:

a. Install pipe to have bearing along entire length of pipe.

b. Excavate bell holes to permit proper joint installation.

c. Do not lay pipe in wet or frozen trench.

9. Prevent foreign material from entering pipe during placement.

10. Install pipe to allow for expansion and contraction without stressing pipe or joints.

11. Close pipe openings with watertight plugs during Work stoppages.

12. Install access fittings to permit disinfection of water system performed under

Section 33 13 00 – Disinfection of Water Utility Distribution.

13. Cover:

a. Establish elevations of buried piping with not less than 4 feet of cover.

b. Measure depth of cover from final surface grade to top of pipe barrel.

14. Pipe Markers:

a. Install plastic ribbon tape continuous buried 24 inches below finish grade, above piping.

b. Coordinate with trench Work as specified in Section 31 23 33 – Trenching and Backfilling for Utilities.

C. Valves and Hydrants:

1. Install valves and hydrants as specified in Section 33 14 19 – Valves and Hydrants for Water Utility Service: Fire hydrants, valves, and valve boxes for fire hydrant and water main installations.

D. Tapping Sleeves and Valves:

Herbert, Rowland & Grubic, Inc. 33 14 13 - 8 009280.0426

1. As indicated on Drawings and according to manufacturer instructions.

E. Thrust Restraints:

1. Provide valves, tees, bends, caps, and plugs with concrete thrust blocks.

2. Pour concrete thrust blocks against undisturbed earth.

3. Locate thrust blocks at each elbow or change of pipe direction to resist resultant force and to ensure that pipe and fitting joints will be accessible for repair.

4. Provide thrust restraint bearing on subsoil in accordance with details on

Drawings.

5. Install tie rods, clamps, setscrew retainer glands, or restrained joints.

6. Protect metal-restrained joint components against corrosion by applying a bituminous coating or encasing metal area using concrete mortar.

7. Do not encase pipe and fitting joints to flanges.

8. Install thrust blocks, tie rods, and joint restraint at dead ends of water main.

F. Service Connections:

1. As specified in Section 33 14 17 – Site Water Service Utility Laterals.

G. Backfilling: Backfill around sides and to top of pipe as specified in Section 31 23 33 – Trenching and Backfilling for Utilities.

H. Hydrostatic Testing for Water Piping System:

1. As specified in Section 33 05 05.31 – Hydrostatic Testing.

I. Disinfection of Potable Water Piping System:

1. As specified in Section 33 13 00 – Disinfecting of Water Utility Distribution.

END OF SECTION 33 14 13