GENERAL
The standard materials set forth are the current Water Department requirements for water main construction and shall be subject to review and change periodically by the Commissioners.
WATER MAIN MATERIALS
All pipe, fittings, and accessories shall conform to the requirements of the latest edition of the following standard specifications as applicable:
AMERICAN NATIONAL STANDARDS INSTITUTE STANDARDS
A21.4 CementMortar Lining for CastIron and DuctileIron Pipe and Fittings for Water
A21.11 RubberGasket Joints for CastIron and DuctileIron Pressure Pipe and Fittings
A21.51 DuctileIron Pipe, Centrifugally Cast in Metal Molds or SandLined Molds, for Water or Other Liquids
A21.53 DuctileIron Compact Fittings, 3in. through 16in. for Water and Other Liquids
PIPE
Unless otherwise indicated or specified, ductileiron pipe shall be at least thickness Class 52 for pipe 12in. and smaller and at least thickness Class 51 for pipe 14in. and larger. Pressure class pipe will not be accepted. Pipe shall be U.S. Pipe or Griffin.
Fittings. Fittings shall conform to the requirements of the abovementioned ANSI A21.53 and shall have a pressure rating of 350 pounds per square inch. All fittings will be cast of ductile iron and shall be mechanical joint. They will be restrained with the Mega-Lug retainer gland.
Joints. Joints for pushon and mechanicaljoint pipe shall conform to ANSI A21.11. Ringtype gaskets, suitable for exposure to the liquid within the pipe, shall be used. Bolts for any joint shall be of the highstrength lowalloy steel type, except as otherwise noted. All mechanical-joints shall be formed using a restrained mechanical gland.
Restrained Mechanical Gland. Restrained Mechanical Gland shall be EBAA Iron’s Mega-Lug ® retainer gland or other non-set-screw type retainer gland that will not void the warrantee of the pipe manufacturer.
Couplings. Couplings shall be HYMAX. The couplings shall be provided with high strength, low alloy, corrosion resistant bolts and nuts.
Couplings shall be provided with gaskets of a composition suitable for exposure to the liquid within the pipe.
Lining and Coating. The inside of pipe and fittings shall be given a cement lining and bituminous seal coat in accordance with ANSI A21.4. Particular care shall be used to insure proper bonding of the seal coat. Lining shall be double thickness.
The outside of buried pipe and fittings shall be coated with the standard bituminous coating specified under the appropriate ANSI Standard Specification for the pipe and fittings.
Joint Lubrication. Joint lubrication for gaskets shall be suitable for lubricating the parts of the joint assembly. The lubricant shall be non-toxic, shall not support the growth of bacteria, and shall have no deteriorating effects on the gasket material. It shall not impart taste or odor to water in the pipe. The lubricant containers shall be labeled
with the trade name or trademark and the pipe manufacturer’s name. The lubrication shall be only that recommended by the pipe and fitting manufacturers. No other lubricant is acceptable.
VALVE, HYDRANT AND SERVICE CONNECTIONS
Gate Valves. Gate valves shall be 150-lb. nonrising stem, iron-body, bronze-mounted, resilient-seated wedge type gate valves having mechanical-joint ends, and shall conform to the AWWA Standard for Gate Valves for Water and Other Liquids, Designation C509. Gate valves shall open right (clockwise) and be M&H, Clow or U.S. Pipe.
Hydrants. Hydrants shall conform in design and manufacture to the latest issue of AWWA Standard C502 “Dry Barrel Fire Hydrants”. Hydrants shall be M&H 929.
Hydrants shall comply with the following:
a. Main Valve Opening: 5.25 inches
b. Outlets:
2 – 2.50 inch hose connections
1 – 4.50 inch steamer connection
c. Operating Nut Size: Pentagon 1.50 inches point to flat
d. Direction of Opening: Clockwise (OPEN RIGHT)
e. Bury Length: 5.5 feet
f. Sub-Seat Material: Bronze
g. Model: Traffic (breakaway design)
h. Color: Match Service Zone Fire Hydrant Standards
Valve Boxes. Valve boxes shall be of rough, even-grained cast-iron and of the adjustable, slip, heavy-pattern Buffalo 64 type. The boxes shall be adjustable through at least 6-in. vertically without reduction of the lap between sections to less than 4-in. Valve boxes shall be of North American origin. Valve box covers shall be labeled “WATER”.
Service Connections
The corporation stop shall be all bronze construction 1” with a Teflon coated ball and AWWA-type (CC) inlet threads with compression outlet. 200 PSI working pressure. Corporations shall be Mueller, Ford, Red Hed or McDonald T Compression.
The curb stop without drain shall be all bronze construction 1” with a Teflon coated ball suitable for PE tubing compression connections. 200 PSI working pressure. Curb Stops shall be Mueller, Ford, Red Hed or McDonald T Compression.
The curb box shall be of the telescoping type and be of North American origin. Curb box covers shall be labeled “WATER”.
Plastic tubing shall be PE Type, rated for 200 PSI working pressure.
The service saddle shall be enamel coated ductile iron or bronze with double band stainless steel straps. Saddle shall have an NBR gasket for use with potable water. Saddles shall be Dresser, Smith Blair, Mueller, Romac or Ford.
Meter Pit shall conform to AWWA Standard C800 (ASTM B-62) and shall include a Cast Iron double lid cover with an asphalt black paint conforming to ASTM A48-92, Class 25 as manufactured by the Ford Meter Box Company or an approved equal.
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