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3.06 HDPE INSTALLATION AND FUSION TESTING A. The Manufacturer shall supply an Installation Manual to the ENGINEER which outlines and guideline for handling, joining, installation, embedding and testing of polyethylene pipeline. 1. These guidelines shall be used as reference material for the ENGINEER in the determination of the required procedures. B. Joints between plain ends of polyethylene pipe shall be made by butt fusion when possible. 1. The Pipe Manufacturer’s fusion process shall be followed at all times as well as the recommendations of the Fusion Machine Manufacturer. 2. The wall thickness of the adjoining pipes shall have the same DR at the point of fusion. C. When saddle connections are fusion welded, the Manufacturer’s recommended saddle fusion procedure shall be used. D. If mechanical fittings (which are designed for, or tested and found acceptable for use with polyethylene pipe) are utilized for transitions between pipe materials, repairs, joining pipe sections, saddle connections, or at other locations; the recommendation of the Mechanical Fitting Manufacturer must be followed. 1. These procedures may differ from other pipe materials. E. On each day butt fusion’s are to be made, the first fusion of the day shall be a trial fusion. 1. The trail fusion shall be allowed to cool completely, and then fusion test straps shall be cut out. 2. The test strap shall be 12” or 30 times the wall thickness in length (minimum) and 1” or 1.5 times the wall thickness in width (minimum). Bend the test strap until the ends of the strap touch. 3. If the fusion fails at the joint, a new trial fusion shall be made, cooled completely and tested. 4. Butt fusion of pipe to be installed shall not commence until a trail fusion has passed the bent strap test. F. Socket and Saddle fusions shall be tested by a bent strap, as described by the Pipe Manufacturer. City of Sunny Isles Beach NE 174th Street Roadway Improvements 15105 - 20 Pipes and Tubes 14-1758 / 09-19-2014