SECTION PIPE & PIPE FITTINGS PART 1 GENERAL

Transcription

1 SECTION PIPE & PIPE FITTINGS PART 1 GENERAL 1.01 DESCRIPTION A. This Section includes the material and bedding requirements for all pipe and pipe fittings for underground pressure and non-pressure piping. B. Related work specified elsewhere includes: Disinfection of Water Lines Pipe & Manhole Leakage Testing Excavating, Trenching & Backfilling Valves & Gates Underground Non-Pressure Piping Underground Pressure Piping C. Abbreviations: (Also see PIPE SCHEDULE ) 1.02 QUALITY ASSURANCE PVC - Poly Vinyl Chloride Pipe ACP - Asbestos Cement Pipe DIP - Ductile Iron Pipe RCP - Reinforced Concrete Pipe HDPE - High Density Polyethylene Pipe A. Pipe and pipe fittings shall be produced in a plant of recognized reputation that is regularly engaged in the production of pipe conforming to the specified standards. Pipe and pipe fittings of the same type shall be the product of a single manufacturer. B. All pipe shall be manufactured in a plant of a member of the following organizations: Pipe DIP RCP Organization Ductile Iron Pipe Research Association American Concrete Pipe Association C. When requested by Engineer, furnish the services of a competent field representative of the manufacturer at the start-up of

2 installation of each type of pipe, to instruct Contractor and Engineer in installation and inspection procedures. The representative, Contractor and Engineer shall inspect the first shipment or shipments of pipe and check dimensional tolerances prior to the installation of the first section of each type of pipe. The representative shall make periodic scheduled visits to the Project as the Work progresses and be present during leakage testing, when requested by Engineer. D. All pipe and pipe fittings shall be made in the United States of America SOURCE QUALITY CONTROL A. General The manufacturer shall test and furnish certificates covering all pipe and fittings supplied under this Section. Select test samples from the run of pipe proposed to be furnished to the Project. Unless Engineer elects to witness such testing, the manufacturer shall select the samples for testing. Advise Engineer at least two (2) weeks in advance of the time and location of the testing. B. Ductile Iron Pipe Inspect and test DIP in accordance with AWWA C151. C. Reinforced Concrete Pipe Test RCP by plant load bearing tests, material tests, concrete cylinder or core tests and inspect completed product. D. HDPE Pipe Test and inspect in accordance with ADP manufacturer s recommendations. E. PVC Pipe Test and inspect in accordance with Uni-Bell F. Additional Testing In addition to the tests required above, Owner may perform additional testing on pipe delivered to the Project site SUBMITTALS A. Brochures containing complete information and instructions pertaining to the storage, handling, installation and inspection of pipe, fittings and joints furnished

3 B. Test certificates for the manufacturer s tests required under Paragraph C. Pipe manufacturers Certificates of Compliance on pipe, with each lot of pipe supplied. Immediately turn certificates over to Engineer. Materials delivered to the site without accompanying certificates will be subject to rejection DELIVERY, STORAGE & HANDLING A. Each length of pipe delivered to the site shall be clearly marked with the name of the manufacturer, class of pipe and pipe diameter. Store in accordance with manufacturer s approved instructions. B. Carefully handle all pipes and fittings when loading and unloading. Lift pipes and fittings by hoists or lower on skid-ways in a manner to avoid shock. Lower pipe into trench with derricks, rope or other suitable equipment. C. Do not dump or drop pipe and fittings. Those that are dumped or dropped are subject to rejection by Engineer. D. Comply with all other recommendations of the manufacturers DUCTILE IRON PIPE PART 2 PRODUCTS A. Pipe AWWA C151, laying lengths, except for closures and specials, shall be a minimum of 18. B. Fittings AWWA C110. C. Joints Mechanical, with restrained joints where shown on the Drawings. 1. Mechanical AWWA C Mechanical, Restrained AWWA C106, except, provide mechanical joint retainer gland with set screws in lieu of follower gland. D. Class

4 E. Lining Cement Mortar with bituminous seal coat per AWWA C 104. F. Coatings Bituminous per AWWA C151. G. Pipe Bedding Earth bedding, unless otherwise ordered by the Engineer REINFORCED CONCRETE PIPE A. Pipe & Fittings ASTM C76, Class IV, Wall B-elliptical reinforcement is prohibited. B. Joints Bell and spigot or tongue and groove ends with joints sealed with a round rubber O ring gasket. Design of joints and physical requirements for rubber gaskets shall conform to ASTM C443, except that the Shore durometer hardness, type A, shall be C. Minimum Laying Lengths 8. D. Class IV E. Pipe Bedding Earth bedding, except where shown otherwise on the Drawings HIGH DENSITY POLYETHYLENE PIPE (HDPE) A. Pipe & Fittings N12 IB ST (soil tight) pipe with bell and spigot joints. Meet requirements of ADS Product Note 3.107, Specification for Smooth Interior Corrugated Polyethylene Pipe. B. Pipe Bedding See details on the Drawings POLYVINYLCHLORIDE PIPE (PVC) A. NSF Seal Pipe shall bear National Sanitation Foundation Seal of approval. B. Pipe and Fittings 1. ASTM D2241 and ASTM D1784, Type 1, Grade 1 PVC. Laying lengths, except for closures and specials, shall be a minimum of 20 feet, plus or minus one inch

5 C. Joints 2. ASTM D1785, Type 1, Schedule 80 pipe ASTM D2464 threaded fittings ASTM D2467 socket type fittings. 1. Rubber sealing ring allowing expansion and contraction at each joint and supplied by the pipe manufacturer. Bell joint with the pipe shall be wall thickened so that standard dimension ratios are maintained or exceeded. 2. Solvent cement ASTM D Screwed ASTM D1785 and D Flanged Flanges shall be screwed, with smooth or O-ring grooved faces as required to match companion flange, complete with gasket and bolts. D. Pipe Bedding Three inch minimum sand shield all around, as detailed on the Drawings INSTALLATION A. See details on the Drawings. PART 3 EXECUTION B. Pipe installations are specified in other Division 2 Sections under which pipes are furnished and installed FIELD QUALITY CONTROL A. In the presence of Engineer, inspect each length of pipe delivered to the job for flaws, cracks, dimensional tolerances and compliance with the applicable specifications. B. Provide Engineer with suitable templates, calipers, feeler gauges and other equipment for checking pipes and fittings. Only pipes and fittings accepted by Engineer, and so marked, shall be installed in the Work. END OF SECTION

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