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Section RAIL SYSTEMS Page 502 <br /> GUIDE RAIL <br /> The dual rail guide design keeps the pump in proper alignment with the stationary discharge piping.These rails shall be 2"galvanized or <br /> stainless steel pipe which bolt directly to the base elbow and to the access frame at the top of the wet-well by an upper guide rail bracket. <br /> PIPING <br /> Piping shall include one (1) swing check valve with outside lever and spring,one (1) plug/gate valve and all the necessary gaskets, <br /> straight pipe,brackets,elbows,tees and fittings.All piping should be coated with coal tar epoxy or equal for corrosion resistance,.Where <br /> piping passes through a wall,welding or sealing concrete shall be used to make a watertight joint. <br /> Note: The Guide Rails and Discharge Piping and Valves are generally supplied by others.They are mentioned here and shown in the <br /> arrangement drawing to provide assistance and clarity. <br /> 4:1 PENTAIR HYDROMATIC <br /> October ©2014 Pentair Ltd. <br />