33 14 16 - Site Water Utility Distribution Piping.pdf

33 14 16 - SITE WATER UTILITY DISTRIBUTION PIPING

Herbert, Rowland & Grubic, Inc. 33 14 16 - 1 005153.0436

SECTION 33 14 16 - SITE WATER UTILITY DISTRIBUTION PIPING

PART 1 - GENERAL

1.1 SUMMARY

1. Section Includes:

1. Pipe and fittings for Site water line, including domestic water lines.

2. Valves: gate and ball.

3. Yard Hydrants.

4. Underground pipe markers.

5. Valve boxes.

6. Bedding and cover materials.

2. Related Requirements:

1. Section 03 30 00 - Cast-in-Place Concrete: Concrete for thrust restraints.

2. Section 31 05 13 - Soils for Earthwork: Soils for backfill in trenches.

3. Section 31 05 16 - Aggregates for Earthwork: Aggregate for backfill in trenches.

4. Section 31 23 16 - Excavation: Product and execution requirements for excavation and backfill.

5. Section 31 23 16.13 - Trenching: Execution requirements for trenching.

1.2 REFERENCE STANDARDS

1. 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.

2. American Society of Mechanical Engineers:

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

250.

2. ASME B16.18 - Cast Copper Alloy Solder-Joint Pressure Fittings.

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

3. American Society of Sanitary Engineering:

1. ASSE 1012 - Performance Requirements for Backflow Preventers with an

Intermediate Atmospheric Vent.

2. ASSE 1013 - Performance Requirements for Reduced Pressure Principle Backflow

Preventers and Reduced Pressure Principle Fire Protection Backflow Preventers.

4. ASTM International:

1. ASTM A48 - Standard Specification for Gray Iron Castings.

2. ASTM B88 - Standard Specification for Seamless Copper Water Tube.

3. ASTM C858 - Standard Specification for Underground Precast Concrete Utility

Structures.

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).

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6. ASTM D1785 - Standard Specification for Poly(Vinyl Chloride) (PVC) Plastic Pipe, Schedules 40, 80, and 120.

7. ASTM D2241 - Standard Specification for Poly(Vinyl Chloride) (PVC) Pressure- Rated Pipe (SDR Series).

8. ASTM D2466 - Standard Specification for Poly(Vinyl Chloride) (PVC) Plastic Pipe Fittings, Schedule 40.

9. ASTM D3035 - Standard Specification for Polyethylene (PE) Plastic Pipe (DR-PR) Based on Controlled Outside Diameter.

10. ASTM D3139 - Standard Specification for Joints for Plastic Pressure Pipes Using Flexible Elastomeric Seals.

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

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

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

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

6. AWWA C502 - Dry-Barrel Fire Hydrants.

7. AWWA C504 - Rubber-Seated Butterfly Valves, 3 In. (75 mm) Through 72 In.

(1,800 mm).

8. AWWA C508 - Swing-Check Valves for Waterworks Service, 2-In. Through 24-In.

(50-mm Through 600-mm) NPS.

9. AWWA C509 - Resilient-Seated Gate Valves for Water Supply Service.

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

11. AWWA C606 - Grooved and Shouldered Joints.

12. AWWA C700 - Cold-Water Meters - Displacement Type, Bronze Main Case.

13. AWWA C701 - Cold-Water Meters - Turbine Type, for Customer Service.

14. AWWA C702 - Cold-Water Meters - Compound Type.

15. AWWA C706 - Direct-Reading, Remote-Registration Systems for Cold-Water

Meters.

16. AWWA C900 - Polyvinyl Chloride (PVC) Pressure Pipe and Fabricated Fittings, 4 In.

Through 12 In. (100 mm Through 300 mm), for Water Transmission and Distribution.

17. AWWA C901 - Polyethylene (PE) Pressure Pipe and Tubing, 1/2 In.(13 mm) Through 3 In.(76 mm) for Water Service.

18. AWWA C906 - Polyethylene (PE) Pressure Pipe and Fittings, 4 In. (100 mm) Through 63 In. (1,600 mm), for Water Distribution and Transmission.

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

6. American Welding Society:

1. AWS A5.8 - Specification for Filler Metals for Brazing and Braze Welding.

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

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

Valves.

8. UL:

1. UL 246 - Hydrants for Fire-Protection Service.

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1.3 SUBMITTALS:

1. Section 01 33 00 - Submittal Procedures: Requirements for submittals.

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

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

4. Field Quality-Control Submittals: Indicate results of Contractor-furnished tests and inspections.

1.4 CLOSEOUT SUBMITTALS:

1. Section 01 77 00 - Closeout Requirements: Requirements for submittals.

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

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

1.5 QUALITY ASSURANCE:

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

2. Perform Work according to applicable standards.

3. Maintain copies of each standard affecting Work of this Section on Site.

PART 2 - PRODUCTS

2.1 WATER PIPING:

1. PVC:

1. ASTM D1785, Schedule 40.

2. Fittings: ASTM D2466, PVC.

3. Joints:

1) Comply with ASTM D2855.

2) Type: Solvent weld.

2.2 GENERAL VALVE REQUIREMENTS:

1. All valves shall be constructed of first quality materials which have strength, wearing, and corrosion resistance characteristics entirely suitable for the types of service for which the individual valves are designated. Except where noted otherwise, valves designated for water service shall conform to pertinent sections of the latest revision of AWWA C500 Specifications. Cast iron valve bodies and parts shall meet the requirements of the latest revision of ASTM Designation A-126, "Standard Specifications for Gray Iron Castings for Valves, Flanges, and Pipe Fittings, Class B."

2. All valve body castings shall be clean, sound, and without defects of any kind. No plugging, welding, or repairing of defects will be allowed.

3. Valves shall have flanged or grooved ends for exposed service and mechanical joint ends for buried service, unless otherwise shown on the Contract Drawings or specified herein.

Flanged ends shall be flat faced, 125 lb. American Standard unless otherwise shown or specified in accordance with ANSI B16.1. Grooved ends shall comply with AWWA C606 and be suitable for installation with couplings of the same manufacture. All bolt heads and nuts shall be hexagonal of American Standard size. The Contractor shall be responsible for coordinating connecting piping. Valves with screwed ends shall be made tight with Teflon tape. Unions are required at all screwed joint valves.

Herbert, Rowland & Grubic, Inc. 33 14 16 - 4 005153.0436

2.3 PVC BALL VALVE:

1. Manufacturer:

1. Spears.

2. ASAHI/AMERICA.

3. Or equal.

2. Description:

1. Minimum Working Pressure: 235 psig at 73 deg. F.

2. Maximum Process Fluid Temperature: 70 deg. F.

3. Ports: Full size.

4. End Connections:

1) Flanged: Comply with ASME B16.5.

2) Union.

2.4 “Y” (WYE) TYPE STRAINER:

1. 2 inch and Smaller: Class 150, threaded bronze body 300 psi CWP, Y pattern with 1/32-inch stainless steel perforated screen.

2.5 COUPLINGS:

1. Extended Range Couplings:

1) Manufacturers:

2) Romac Industries Macro HP.

3) Or equal.

4) Furnish materials according to AWWA standards.

5) Description:

1. Couplings shall be manufactured in accordance with the design, testing and performance standards of AWWA C219, and be suitable for use for the applicable piping material. Fittings shall have epoxy manufacturer applied epoxy coating. Center sleeve shall be constructed of Ductile Iron meeting ASTM A536. End Rings shall be cast from Ductile Iron with color coding to identify pipe material and size. Gaskets shall be composed of EPDM Rubber and have size and end ring color code embossed on material.

2. Restrained Extended Range Couplings:

1. Manufacturers:

1) Romac Industries Alpha, or equal.

2) Furnish materials according to AWWA standards.

2. Description:

1. Coupling shall provide restrained joints for connecting plain pipe ends.

Coupling body shall be ductile iron, meeting or exceeding the requirements of ASTM A536, Grade 65-45-12. The restraint mechanism shall consist of a plurality of ductile iron grippers, meeting or exceeding ASTM A536, Grade 65- 45-12. Grippers shall be actuated by properly torqued rotating end rings.

Grippers shall distribute the load evenly around the pipe circumference.

Where used in the design of the coupling, draw hook fasteners shall be 304L stainless steel. Bolts and nuts shall be e-coated, 304 stainless steel provided with anti-galling protection. Coupling shall be coated with an epoxy. Work pressure: up to 350 psi. Coupling shall accommodate up to 4 degrees of deflection per end.

Herbert, Rowland & Grubic, Inc. 33 14 16 - 5 005153.0436

2.6 UNDERGROUND PIPE MARKERS:

1. Underground Warning Tape:

1) Tape shall be capable of being detected with inductive methods, and shall comply with the following requirements:

2) Printed polyethylene tape, six inches minimum width, color coded, one inch minimum lettering, and suitable for installation in all soil types.

3) Color shall be blue for waterlines.

4) Tape shall be color coded according to Pennsylvania One Call standards.

5) Tape shall be clearly and permanently labeled to indicate type of underground utility, such as “CAUTION: WATERLINE” for waterlines.

2. Tracer Wire:

a. Electronic detection materials for nonconductive piping products.

Unshielded, 10 AWG, TH/THW-insulated copper wire.

b. Color: Blue.

2.7 CONCRETE ENCASEMENT:

1. Concrete:

1. Compressive Strength: 3000 psi at 28 days.

2. Finish: Rough troweled.

2.8 THRUST BLOCKING:

1. Flowable Fill Concrete (Controlled Low Strength Material):

1. Compressive Strength: Excavatable.

2. Finish: Rough troweled.

3. As specified in 31 23 23.33 Flowable Fill.

2.9 MATERIALS:

1. Bedding and Backfill Cover:

1. Bedding and cover: AASTHO No. 8 (for pipes less than 24” diameter), AASHTO No.

57 (for pipes 24” diameter and greater), as specified in Section 31 05 16 - Aggregates for Earthwork.

2. Soil Backfill from above Pipe to Finish Grade: Unimproved surfaces - Suitable Backfill per Section 31 05 13 - Soils for Earthwork, Improved and Paved surfaces - PennDOT 2A per Section 31 05 16 – Aggregates for Earthwork.

3. Suitable Backfill: No rocks more than 6 inches in diameter, frozen earth, or foreign matter.

2.10 MATERIALS

1. Bedding and Cover:

1. Bedding and cover: AASHTO No. 8, as specified in Section 31 05 16 - Aggregates for Earthwork.

2. Soil Backfill from above Pipe to Finish Grade: Suitable Backfill and Embankment Material as specified in Section 31 05 13 - Soils for Earthwork..

3. Subsoil: No rocks more than 6 inches in diameter, frozen earth, or foreign matter.

2.11 ACCESSORIES

1. Thrust Restraints: As specified in Section 33 05 09.33 - Thrust Restraint for Utility Piping.

2. Concrete Thrust Blocking: Flowable Fill CLSM – excavatable, as specified in Section 31 23

23.33 – Flowable Fill.

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2.12 SOURCE QUALITY CONTROL:

1. Provide shop inspection and testing of completed assembly.

2. Certificate of Compliance:

1. If manufacturer is approved by authorities having jurisdiction, submit certificate of compliance indicating Work performed at manufacturer's facility conforms to Contract Documents.

PART 3 - EXECUTION

3.1 EXAMINATION:

1. Section 01 73 00 - Execution Requirements: Requirements for installation examination.

2. Determine exact location and size of valves from Drawings.

3. Identify required lines, levels, contours, and datum locations.

4. Verify that elevations of existing facilities prior to excavation and installation of valves and hydrants are as indicated on Drawings.

3.2 PREPARATION:

1. Section 01 73 00 - Execution Requirements: Requirements for installation preparation.

2. Locate, identify, and protect from damage utilities to remain.

3. Do not interrupt existing utilities without permission and without making arrangements to provide temporary utility services.

1. Notify Engineer not less than 5 days in advance of proposed utility interruption.

2. Do not proceed without written permission from Architect/Engineer.

3.3 INSTALLATION:

1. Perform trench excavation, backfilling, and compaction as specified in Section 31 23 16.13

– Trenching.

2. Except where noted otherwise herein, all valves shall be installed and tested in accordance with the latest revision of AWWA C509. Before installation, all valves shall be lubricated, manually opened and closed to check their operation, and the interior of the valves shall be thoroughly cleaned. Valves shall be placed in the positions shown on the Drawings and as indicated by Owner. Joints shall be made as directed under Project Documents. The valves shall be so located that they are easily accessible for operating purposes, and shall bear no stresses due to loads from the adjacent pipe.

3. Install valves and hydrants in conjunction with pipe laying.

4. Provide buried valves with valve boxes installed flush with finished grade.

5. All valve boxes shall be placed so as not to transmit shock or stress to the valve and shall be centered and plumb over the operating nut of the valve.

6. Provide support blocking and drainage gravel while installing fire hydrants; do not block drain hole.

7. Orientation:

1. Set valves and hydrants plumb.

2. Set fire hydrants with pumper nozzle facing roadway.

3. Set fire hydrants with centerline of pumper nozzle 18 inches above finished grade and with safety flange not more than 6 inches nor less than 2 inches above grade.

8. After main-line pressure testing, flush fire hydrants and check for proper drainage.

9. Disinfection of Water Piping System: Flush and disinfect valves and hydrants with water mains as specified in Section 33 01 10.58 - Disinfection of Water Utility Piping Systems.

Herbert, Rowland & Grubic, Inc. 33 14 16 - 7 005153.0436

3.4 FIELD QUALITY CONTROL:

1. Section 01 40 00 - Quality Requirements: Requirements for inspecting and testing.

2. Testing: Pressure test valves and hydrants with water mains as specified in Section 33 05

05.31 – Hydrostatic Testing.

3. Manhole and Cover: As specified in Section 33 05 61 – Concrete Manholes.

4. Disinfection:

1. Flush and disinfect system as specified in Section 33 01 10.58 - Disinfecting of Water Utility Piping.

3.5 TOLERANCES:

1. Section 01 40 00 - Quality Requirements: Requirements for inspecting and testing.

2. Compaction Testing for Bedding and Backfill: Consult Geotechnical report.

3. When tests indicate Work does not meet specified requirements, remove Work, replace, and retest.

END OF SECTION