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C. Sleeve type couplings shall be harnessed except where noted. 1. The harnessing shall be as shown on the drawings or as specified herein. 2. Harnesses for steel pipe shall be in accordance with AWWA Manual M11 for the pipe size and pressure, working or test whichever is greater. D. Harnesses for ductile iron pipe shall be tie rods spanning between adjacent flanges. 1. Friction clamps shall not be permitted. 2. The size and number of tie rods shall be the same as for steel pipe for the same pressure and pipe size. E. Where the distance between adjacent flanges is in excess of ten (10) feet or where a harness cannot be used, the pipe supports adjacent to the coupling shall restrain the piping, preventing linear or angular movement resulting in the pipe separating from the coupling or misalignment in the joint. F. Where expansion joints are used, control units shall be provided. 1. Tie rods and control units shall be installed in accordance with to the manufacturer's recommended procedures. G. Tie rods and associated hardware shall be type 316 stainless steel. H. Valves and fittings shall be restrained in an approved manner such that the any developed unbalanced force shall be supported independent of the piping system. 3.16 FLUSHING AND TESTING A. General 1. Furnish necessary labor and equipment required for the field tests specified below including, but not limited to, air compressor, gauges, conduit caps, temporary pipe, and connections. 2. Provide potable water for flushing and testing purposes. 3. Furnish and install means and apparatus necessary for getting the water into the pipeline and flushing and testing; including pumps, gages, meters, necessary plugs and caps, and temporary blow-off piping required to discharge water. Complete with necessary reaction-blocking to prevent pipe movement during the flushing and testing. City of Sunny Isles Beach NE 174th Street Roadway Improvements 15105 - 28 Pipes and Tubes 14-1758 / 09-19-2014