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This specification includes but is not limited to high-density polyethylene (PE 3408) (ductile iron pipe size O.D) pressure pipe primarily intended for the transportation of water and sewage either buried or above grade.
High Density Polyethylene (HDPE) pipes/fittings shall be allowed for use as water, wastewater and reclaimed water pressure pipe where compatible with the specific conditions of the project. The use of material other than HDPE pipe may be required by ASPA if it is determined that HDPE pipe is unsuitable for the particular application. All material used in the production of water main piping shall be approved by the National Sanitation Foundation (NSF).
1) AWWA C901 Polyethylene (PE) pressure Pipe & Tubing, 1/2 inch through 3 inch for water.
2) AWWA C906 Polyethylene (PE) pressure Pipe & Fittings, 4 inch through 63 inch for water.
3) ASTM D3035 Standard Spec for PE Pipe (DR-PR) Based on Controlled Outside Diameter.
4) ASTM D3261 Butt Heat Fusion PE Fittings for PE Pipe & Tubing.
5) ASTM D3350 Standard Specification for PE Pipe & Fittings Materials.
6) TR-33/2005 Generic Butt Fusion Joining Procedure for Field Joining of PE Pipe.
1) High Density Polyethylene (HDPE) Pipe shall be installed in accordance with the instruction of the manufacturer, as shown on the Drawings and as specified herein. A factory qualified joining technician as designated by the pipe manufacturer shall perform all heat fusion joints.
2) HDPE shall be installed either by Open Trench Construction or Directional Bore Method.
3) Care shall be taken in loading, transporting and unloading to prevent damage to the pipe. Pipe or fitting shall not be dropped. All pipe or fitting shall be examined before installation, and no piece shall be installed which is found to be defective. Any damage to the pipe shall be repaired as directed by the Engineer. If any defective pipe is discovered after it has been installed, it shall be removed and replaced with a sound pipe in a satisfactory manner by the contractor, at his own expense.
4) Under no circumstances shall the pipe or accessories be dropped into the trench or forced through a directional bore upon “pull-back”.
5) Care shall be taken during transportation of the pipe such that it will not be cut, kinked or otherwise damaged.
6) Ropes, fabric or rubber protected slings and straps shall be used when handling pipes. Chains, cables or hooks inserted into the pipe ends shall not be used. Two slings spread apart shall be used for lifting each length of pipe.