Large Diameter HDPE Pipe for Water Main Applications

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Large Diameter HDPE Pipe for Water Main Applications ( large-diameter-hdpe-pipe-water-main-applications )

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6.7 Aerial view of the drill rig used to install the 20 in. HDPE transmission main to Fisher Island...........................................................................................................78 6.8 HDPE pipe segments stacked in field prior to installation...............................................79 6.9 A view of the Gatehampton Borehole project site during installation .............................79 6.10 Resistance to corrosion and flexibility were the primary reasons for Howard County to select HDPE ..........................................................................................80 6.11 Flexibility of HDPE enabled fast construction of the South Catamount reservoir transfer pipeline under a design-build contract......................................................81 B.1.1 Points received for each topic ........................................................................................107 C.2.1 Back-flow pressure valve ...............................................................................................127 C.2.2 Inlet and outlet solenoid valves ......................................................................................128 C.2.3 Components of the control board ...................................................................................129 C.2.4 Control board logic flowchart ........................................................................................130 C.2.5 Pressure transducer.........................................................................................................131 C.2.6 Multi-stage centrifugal pump (10 HP) ...........................................................................132 D.1.1 The 36 in. HDPE being inserted into the host pipe .......................................................136 D.1.2 Fusing the joints in the trench imposed a challenge for the construction crew..............137 D.1.3 Access pit to the steel host pipe......................................................................................137 D.1.4 Flanged tee connected to the new HDPE pipe ...............................................................138 D.2.1 Finished reclaimed water to ground storage tanks (Purple), raw water pipeline route from RWPS (Blue) .....................................................................................140 D.2.2 Raw pipeline route looking over asphalt road and scrub jay PML ................................141 D.2.3 Raw water pipeline route, turning onto berm road adjacent to FPL corridor ................141 D.2.4 Raw water pipeline, approaching RWPS .......................................................................142 D.2.5 Lowering the heater plate between the pipes for fusing.................................................143 xv ©2015 Water Research Foundation. ALL RIGHTS RESERVED.

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Large Diameter HDPE Pipe for Water Main Applications

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