SECTION 15004
DETAIL PIPING SPECIFICATION - CEMENT-LINED DUCTILE IRON PIPE AND FITTINGS
PART 1 GENERAL
1.1 SECTION INCLUDES
A. Cement-lined ductile iron pipe.
B. Grey cast iron or ductile iron fittings.
1.2 RELATED SECTION
A. Section 15000 - Plant Piping – General: See referenced section for additional requirements.
1.3 SUBMITTALS
A. As specified in Section 15000.
PART 2 PRODUCTS
2.1 PIPE
A. General Pipe Requirements: Centrifugally cast, Grade 60-42-10 iron, ANSI/AWWA C151/A21.51, cement-lined and seal-coated in accordance with ANSI/AWWA C104/A21.4, 250 psi minimum working pressure.
B. Buried pipe Requirements: Minimum thickness Class 53 as specified in ANSI/AWWA C151/A21.51, Tables 51.4 and 51.5.
C. Requirements for specific types of pipes:
1. Exposed Flanged Pipe: Minimum thickness class 53 as specified in ANSI/AWWA C115/A21.15, Table 15.1.
2. Grooved End Pipe 3-inches and larger:
a. Conform to AWWA C606 rigid radius cut grooved pipe on all exposed piping unless otherwise noted.
b. Conform to AWWA C606 for all flexible radius cut grooved pipe as noted.
c. Conform to the following minimum Thicknesses Classes:
1) 3 to 16 inch piping: Class 53.
2) 18 inch piping: Class 54.
3) 20 inch piping: Class 55.
4) 24 inch piping and larger: Class 56.
3. Mechanical Pipe: Conforming to the requirements of ANSI/AWWA C111/A21.11.
4. Push-On: Conforming to the requirements of ANSI/AWWA C111/A21.11.
2.2 JOINTS
A. Flanged, grooved end, mechanical joint, or push-on as specified in Section 15000.
B. Refer to the pipe schedule in the Drawings for specific joint type required for some services.
C. Provide fittings and all coupling components from the same manufacturer to assure uniformity and compatibility of grooved end piping components.
D. Provide joint restraint as follows:
1. At all elbows (except 90° elbows) and all joints within 20 feet of all elbows.
2. At all 90° elbows and all joints within 40 feet of all 90° elbows.
E. Accomplish joint restraint by using push-on joint restraint gaskets from American Ductile Iron Pipe Fast-Grip gasket of U.S. Pipe Field Lok gasket, or equal, or mechanical joints with multiple wedge retainer glands, EBAA Iron Sales MEG-A-LUG series 1100, or approved equal.
2.3 FITTINGS
A. General Construction: Gray or ductile iron, 150 psi minimum working pressure, cement- lined and seal-coated.
B. Provide tapping bosses on fittings where taps are shown.
C. Requirements for specific types of fittings:
1. Flanged: ANSI/AWWA C110/A21.10 and ANSI B16.1, faced and drilled 125- pound ANSI standard.
2. Grooved End: ANSI/AWWA C110/A21.10, ANSI/AWWA C606, and ANSI B16.1, radius cut grooved, rigid joint, as manufactured by Victaulic, Gustin- Bacon, or equal.
3. Mechanical Joint: Full body mechanical joint fittings meeting ANSI/AWWA C110/A21.10 with the joint meeting the requirements of ANSI/AWWA C111/A21.11.
4. Push-On: ANSI/AWWA C110/A21.10 and ANSI/AWWA C153/A21.53, American Ductile Iron Pipe, Fastite Joint; or U.S. Pipe and Foundry, Tyton Joint, or equal.
D. Compact ductile iron mechanical joint fittings, ANSI/AWWA C153/A21.53, Clow Corporation or equal, may be substituted for the mechanical joint fittings specified above.
2.4 FLANGES
A. ANSI A21.15/AWWA C115, thread on flanges with 250 psi working pressure and ANSI 125-pound drilling.
B. Grooved end pipe adaptor flanges shall be malleable iron, ASTM A 47, or ductile iron, ASTM A 536, Victaulic Style 31, Gustin-Bacon, or equal.
2.5 COUPLINGS
A. Grooved end pipe couplings shall be malleable iron, ASTM A47, or ductile iron, ASTM A536, Victaulic Style 31, Gustin-Bacon, or equal.
2.6 BOLTS & NUTS
A. Flanged: Type 316 stainless, ASTM A 193, Grade B8M hex head bolts and ASTM A 194, Grade 8M hex head nuts. Size, length, and number as shown in AWWA C110 and AWWA C115.
B. Mechanical Joint: In accordance with ANSI/AWWA C153/A21.53.
C. Grooved End: Manufacturer's standard.
2.7 GASKETS
A. Mechanical or Push-on Joints: Natural rubber (styrene butadiene copolymer) conforming to ANSI/AWWA C111/ A21.11.
B. Flanged Joints:
1. Provide 1/8-inch thick, cloth-inserted natural rubber (styrene butadiene copolymer) conforming to applicable parts of ANSI B16.21 and AWWA C207.
2. Gasket material: Suitable for use in sewage or potable waterlines and free from corrosive alkali or acid ingredients.
3. Gasket type:
a. Full-face type for 125-pound FF flanges and 250-pound FF flanges up to 12-inches in diameter.
b. For sizes 14-inches and greater, use ring gaskets.
C. Grooved End Joints:
1. Provide manufacturer's flush-seal type specifically designed for cast surfaces.
2. Properties: As designated in ASTM D 2000 for the required service.
3. Dimensions: Conforming to AWWA C 606.
2.8 LUBRICANT
A. Provide manufacturer's standard lubricant for push-on or mechanical joint piping.
PART 3 EXECUTION
3.1 HANDLING PIPE
A. Care shall be taken not to damage the cement lining when handling the pipe.
3.2 CUTTING PIPE
A. Cut pipe with milling type cutter, rolling pipe cutter, or abrasive saw cutter. Do not flame cut.
3.3 DRESSING CUT ENDS
A. Dress cut ends of pipe in accordance with the type of joint to be made.
B. Dress cut ends of mechanical joint pipe to remove sharp edges or projections which may damage the rubber gasket.
C. Dress cut ends of push-on joint pipe by beveling, as recommended by the pipe manufacturer.
D. Dress cut ends of pipe for flexible couplings, flanged coupling adapters, and grooved end pipe couplings as recommended by the coupling or adaptor manufacturer.
3.4 FABRICATION OF FLANGED PIPE
A. Flanged pipe shall be fabricated in the shop, not in the field, and delivered to the jobsite with flanges in place and properly faced. Threaded flanges shall be individually fitted and machine tightened on matching threaded pipe by the manufacturer.
B. Flanges shall be faced after fabrication in accordance with ANSI A21.15/AWWA C115.
3.5 JOINTING PIPE
A. Flanged:
1. Thoroughly clean all oil, grease, and foreign material from the faces of the flanges before connecting flanged pipe.
2. Check all rubber gaskets for proper fit and cleanliness.
3. Take care to assure proper seating of the flange gasket.
4. Tighten bolts so that the pressure on the gasket is uniform.
5. Use torque-limiting wrenches to ensure uniform bearing insofar as possible.
6. Removed and reset gasket and retighten bolts at joints that leak during retightening.
B. Grooved end:
1. Install in accordance with the manufacturers printed instructions.
2. Clean ends, coupling, and gasket before assembly.
C. Mechanical and Push-On Joint:
1. Join pipe with mechanical or push-on type joints in accordance with the manufacturer's recommendations.
2. Provide all special tools and devices, such as special jacks, chokers, and similar items required for proper installation.
3. Furnished pipe manufacturer's gasket lubricant. No substitute lubricants will be permitted.
4. Install mechanical joints in accordance with the instructions in ANSI/AWWA C600 and ANSI/AWWA C111/A21.11.
3.6 TESTING
A. All lines shall be tested as listed in the Pipe Schedule shown on the Drawings.
B. Follow the testing procedures specified in Section 15000.
3.7 CORROSION PROTECTION
A. As specified in Section 15000.
3.8 SUPPORTS AND HANGERS
A. As specified in Section 15000.
3.9 GENERAL INSTALLATION OF EXPOSED PIPING
A. As specified in Section 15000.
END OF SECTION
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