02490.00 1108 Section 02490 - Potable Water Service Connection Materials, 2 Inch and Smaller
Description
02490.00Scope - This Section includes the requirements for potable water service connections
2 inches in diameter and smaller, and sampling stations.
Materials
02490.10General - Service line materials shall conform to AWWA C800 and these Specifications
Provide service line materials that are designed for a working pressure of 100 psi. Where high pressure service materials are specified or shown, provide materials that are designed for a working pressure of 150 psi. Use high pressure service materials when service line is hydrostatically tested concur rent with the water main. All Materials in contact with potable water shall conform to ANSI/NSF Standard 61, Drinking Water System Components - Health Effects, or equivalent.
02490.20Saddles - Saddles shall be ductile iron, bronze or stainless steel. Saddles used
for 3/4 inch and 1 inch services shall be single strap saddles and have either AWWA tapered thread or female iron pipe thread outlet. Saddles used for 1 1/2 inch and 2 inch services shall be double strap saddles with female iron pipe thread outlet. Saddles used on asbestos cement or on PVC pipe shall be formed for the pipe and have flat, stainless steel straps.
02490.30Service Connection Valves:
stops for direct tapping shall have AWWA tapered thread inlet and outlet connections compatible with either copper or polyethylene tubing.
saddles shall have either AWWA tapered thread or male iron pipe thread inlets and outlet connections compatible with either copper or polyethylene tubing. Thread patterns for the saddle outlet and corporation stop inlet shall be the same.
have male iron pipe thread inlets and outlet connections compatible with connecting service pipes, or have male iron pipe thread outlets.
meter valves shall have a lock wing.
angled gate valves on all services smaller than 2 inch and shall be non-rising stem, solid disc type with screwed or union bonnet, threaded ends, and a have brass handle. Body, bonnet, operating handle, and disc shall be ASTM B62 bronze. Stems shall be copper silicon alloy, nickel plated steel, or other approved corrosion resistant materials with equal characteristics of strength and durability. The disc shall clear the port area completely in the fully opened position. Threaded ends shall meet the requirements of ANSI B2.1.
02490.40Service Pipe and Fittings :
conforming to the requirements of ASTM B88, Type K.
requirements of AWWA C901. Tubing shall be high molecular mass with a 200 psi rating. Tubing 02490.90 1109 used for 3/4 inch and 1 inch shall be either SDR 7 (iron pipe size) or SDR 9 (copper tube size). Tubing used for 1 1/2 inch and 2 inch shall be SDR 9 (copper tube size).
copper tubing shall be either compression or flare type, insulated or noninsulated.
Fittings used for polyethylene tubing shall be either compression or stab type. Stab type f ittings shall utilize an internal grip ring and O -ring seal. Use stainless steel liners when utilizing compression fittings on polyethylene tubing.
02490.50Meter Setters - Meter setters shall be manufactured and tested according to all applicable
parts of AWWA C800. Meter setters shall be 12 inches in height and shall have an angle meter stop with drilled padlock wing, an angle check valve, and inlet and outlet threads compatible with fittings connecting to service pipes.
Meter setters for 5/8 inch by 3/4 inch, 3/4 inch, and 1 inch services shall have meter saddle nuts for installation and removal of the meter. Meter setters for 1 1/2 inch and 2 inch services shall be equipped with a locking bypass.
02490.60Bronze Nipples and Fittin gs - Bronze threaded nipples and fittings shall meet the
requirements of ANSI B16.15, ASA 125 pound class.
02490.70Meter Boxes:
reinforced concrete or high density polyethylene. High density polyethylene meter boxes and covers shall have a tensile strength conforming to ASTM D638. Meter box covers shall include a reading lid.
cast iron or ductile iron. Construct traffic covers of aluminum, steel, cast iron or ductile iron. Meter boxes and covers shall be designed for continuous H -20 traffic loading.
02490.80Sampling Stations - Sampling stations shall have a 3/4 inch inlet with the depth of bury
indicated, and a 3/4 inch unthreaded nozzle. Enclose the sampling station in a lockable, non-removable, cas t aluminum housing. When opened, the station shall require no key for operation, and the water shall flow in an all -brass waterway. All working parts shall also be of brass and be removable from above ground with no digging. Exterior piping shall be bra ss. Include at each station a copper vent tube with a ball valve to enable the station to be pumped free of standing water to prevent freezing.
02490.90Acceptance - Materials for potable water service connections will be accepted according
to 00165.35 and this Section.