4150.01 A.
DESCRIPTION. Pipe and fittings for constructing water mains.
4150.02
B.
Water Main, Valve, Fire Hydrant, and Appurtenance Materials
Valves, fire hydrants, and appurtenances associated with water main construction.
4150.02 A.
PIPE AND FITTINGS. Water Main. 1.
Polyvinyl Chloride Pipe. Comply with AWWA C900 with ductile iron pipe equivalent outside diameters.
1) 4 inch through 24 inch sizes: DR 18. 2) Sizes over 24 inch: As specified in the contract documents.
Use push-on joint type, except as otherwise required in the contract documents or as authorized by the Engineer. 1) Push-on: According to AWWA C900. 2) Integral Restrained Joint: AWWA C900 pipe with restraining system manufactured integrally into pipe end. 3) Mechanical Restrained Joint: Ductile iron mechanical device designed for joint restraint of AWWA C900 pipe complying with the requirements of ASTM F 1674.
1) Name of manufacturer. 2) Size and class. 3) Spigot insertion depth gage. 4) National Sanitation Foundation (NSF) seal.
2.
Ductile Iron Pipe.
1) 4 inch through 24 inch sizes: Special thickness Class 52 according to AWWA C151. 2) Sizes over 24 inches: As specified in the contract documents.
seal coat.
contract documents or as authorized by the Engineer. 1) Push-on: According to AWWA C111. 2) Mechanical: According to AWWA C111. 3) Restrained, Buried: Pipe manufacturer's standard field removable system. 4) Restrained, in Structures: Restraining gland, flanged or grooved/shouldered. 5) Flanged: According to AWWA C111. 6) Grooved/Shouldered: According to AWWA C606. 7) Gaskets: According to AWWA C111.
1) Name of manufacturer. 2) Size and class. 3) Spigot insertion depth gage.
Water Main, Valve, Fire Hydrant, and Appurtenance Materials 4150.02
B.
C.
Bolts for Water Main and Fittings. Use corrosion resistant bolts. 1.
Tee-bolts and Hexagonal Nuts for Mechanical Joints.
C111.
bolts and nuts.
friction for ease of installation.
2.
Other Bolts and Nuts.
Fittings. 1.
DIP and PVC Pipe.
C153 (ductile iron).
1) For pipe sizes 16 inches and less, use mechanical joint complying with AWWA C111. 2) For pipe sizes greater than 16 inches, use restrained mechanical joint system. Provide follower gland using breakaway torque bolts to engage thrust restraint.
fittings between dissimilar pipes, the minimum pressure rating is the lesser of the two pipes.
removable, and re-installable. 3) Use of alternate restraint systems must be approved by the Engineer.
protective fusion bonded coatings per AWWA C116.
2.
Flange Adapter.
536.
to permanent set.
or carbon steel bolts complying with ASTM A 307.
4150.02
Water Main, Valve, Fire Hydrant, and Appurtenance Materials
3.
D.
E.
Pipe Coupling.
ASTM A 53 or ASTM A 512, or formed carbon steel with a minimum yield of 30,000 psi.
536, or steel meeting or exceeding the requirements of ASTM A 576, grade 1010-1020.
to permanent set.
Concrete Thrust Blocks. 1.
Use Class C concrete.
2.
Refer to the contract documents for dimensions and installation of thrust blocks.
3.
Use for all pipe sizes 16 inches in diameter or smaller when specified.
Pipeline Accessories. 1.
Polyethylene Wrap.
2.
Tracer System. Refer to the contract documents for details. 1) Open Cut.
2) Directional Drilling/Boring.
Water Main, Valve, Fire Hydrant, and Appurtenance Materials 4150.03
g)
b. c. d.
e. F.
Insulation Material: High density, high molecular weight polyethylene.
Ground Rod: 3/8 inch diameter, 60 inch steel rod uniformly coated with metallically bonded electrolytic copper. Ground-rod Clamp: High-strength, corrosion-resistant copper alloy. Splice Kit: Inline resin splice kit with split bolt (1 kV and 5 kV) for use with single conductor and unshielded cable splices in direct bury and submersible applications. Tracer Wire Station: Comply with the contract documents.
Special Gaskets. 1.
For soils contaminated with gasoline, use neoprene or nitrile gaskets.
2.
For soils contaminated with volatile organic compounds, use nitrile or fluorocarbon gaskets.
3.
For other soil contaminants, contact the Engineer for the required gasket.
1.
Controlling Standards. Local plumbing and fire codes.
2.
Materials.
1) Comply with ASTM B 88. 2) Wall Thickness: Type K.
As specified in Article 4150.02, A. Polyethylene wrap is required.
ASTM D 1785, SDR 21, Schedule 80, TypeS joints.
Red, seamless, according to ASTM B 43.
Class 200, according to AWWA C901.
3.
Corporations, Stops, and Stop Boxes. Contact the Engineer for requirements.
H.
Non-shrink Grout. Comply with Materials I.M. 491.13
I.
Casing Pipe. Apply Section 2553.
4150.03
VALVES.
4150.03
A.
B.
C.
D.
Water Main, Valve, Fire Hydrant, and Appurtenance Materials
General. 1.
Valve Body: Manufacturer's name and pressure rating cast on valve body.
2.
Direction of Opening: The opening direction is counterclockwise as viewed from the top, unless specified otherwise in the contract documents or as directed by the Engineer.
3.
Joints.
Apply Article 4150.02, B, for joint nuts and bolts.
drillings according to AWWA C110 or ANSI B16.1 Class 125.
Gate Valves. 1.
Standards: Comply with AWWA C509 (gray iron or ductile iron) or AWWA C515 (ductile iron) and NSF 61
2.
Stem Seals: Double O-rings permanently lubricated between seals. Lubricant certified for use in potable water.
3.
External Bolts and Hex Nuts: Stainless steel according to ASTM A 240, Type 304.
Butterfly Valves. 1.
Standards: Comply with AWWA C504 Class 150B (gray iron or ductile iron) and NSF 61.
2.
Stem: Stainless steel according to ASTM A 240, Type 304, turned, ground, and polished.
3.
For Seat on Body Valves:
edge or stainless steel edge according to ASTM A 240, Type 316, and mechanically fixed stainless steel pins.
body.
4.
For Seat on Disc Valves:
compound seat mechanically retained to the disc.
5.
External Bolts and Hex Nuts: Stainless steel according to ASTM A 240/A 240M, Type 304.
Tapping Valve Assemblies. Use tapping valve assemblies only where specified in the contract documents.
Water Main, Valve, Fire Hydrant, and Appurtenance Materials 4150.04
1.
Tapping Valve. Gate valve complying with AWWA C509 or AWWA C515.
2.
Sleeve.
ANSI B16.1 Class 125.
3.
Minimum Sleeve Length. Apply Table 4150.03-1 Table 4150.03-1: Minimum Sleeve Length Outlet Flange Size, inches
Minimum Sleeve Length, inches
over 12
As approved by the Engineer
4.
Gasket.
5.
Outlet Flange.
6.
Hex Nuts and Bolts. Stainless steel according to ASTM A 240, Type 304.
4150.04
FIRE HYDRANT ASSEMBLY.
A.
Material. Comply with AWWA C502.
B.
Manufacturers. As allowed in the contract documents.
C.
Features. 1.
Breakaway Items: Stem coupling and breakaway flange.
2.
Inlet Nominal Size: 6 inch diameter.
4150.05
D.
Water Main, Valve, Fire Hydrant, and Appurtenance Materials
3.
Inlet Connection Type: Mechanical joint.
4.
Hose Nozzles: Two, each 2 1/2 inches in diameter.
5.
Direction of Opening: Counterclockwise, unless specified otherwise.
6.
Items to be Specified: The following items will be specified in the contract documents.
Painting. 1.
Shop coating according to AWWA C502.
2.
Above grade exterior coating type and color will be selected by the Engineer.
E.
External Bolts and Hex Nuts. Stainless steel according to ASTM A 193, Grade B 8.
F.
Gate Valve. Apply Article 4150.03.
Apply Article 4150.02. 4150.05
APPURTENANCES.
A.
Flushing Device (Blowoff): As specified in the contract documents.
B.
Valve Box. 1.
Applicability: For all buried valves.
2.
Manufacturer: As specified in the contract documents.
3.
Type:
4.
Material: Gray iron.
5.
Cover: Gray iron, labeled "WATER"
6.
Wall Thickness: 3/16 inch, minimum.
7.
Inside Diameter: 5 inches, minimum.
Steel Reinforcement
8.
Length: Adequate to bring top to finish grade, including valve box extensions, if necessary.
9.
Factory Finish: Asphalt coating.
4151.02
C.
Valve Stem Extension. For all buried valves, provide as necessary to raise 2 inch operating nut to within 3 feet of the finish grade. Stem diameter according to valve manufacturer's recommendations, but not less than 1 inch.