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Flexible Underground 12.3.5 Mounting the Riser Pipe Assembly 13.0 FLEXIBLE PIPE FABRICATION For shear valves other than Environ shear After all plumbing trees have been installed inside the tank valves install the valve mounting plate to the sumps and riser assemblies installed into either the deep or installed shear valve using the fasteners shallow dispenser sumps or deep dispenser pans, fabrication provided and mount the entire riser pipe and installation of the flexible piping may proceed. assembly to the stabilizer bar ofthe dispenser sump or pan.Move the pipe assembly into the correct position for alignment with the 13.1 Pipe Handling At Jobsite dispenser inlet and tighten bota For Environ It is recommended that the carton be placed in the sunlight shear valves,the shear valve mounting plate several hours before measuring and cutting the pipe, so the need not be installed. pipe may relax for easier extension when measuring. 12.3.6 Installing Entry Boots IMPORTANT: Do not drag to pipe sections or step on the flexible piping during installation to avoid damage to the piping. For dispenser pan applications only,slide the flexible entry boot up the jacketed riser `' '' 13.2 Cold Weather Pipe Handling pipe and into the predrilled boot opening GeoFlex®flexiblei in can be installed and stud holes underneath the bottom of the dispenser pan. Fasten the flexible in ambient temperatures as low as zero p g degrees,provided that the flexible piping , entry boot to the bottom of the pan using has been sufficiently warmed prior to the metal compression ring and nut fasteners. Next tighten the band clamp unrolling. If the pipe is unrolled and around the jacketed riser pipe. straightened while it is warm,it will cool in a straighter position making it easier to install. For cold weather installations where the ambient temperature is below 12.4 Contained Riser w/ Riser Adapter 40' F (5°C), it is recommended that the This contained riser pipe assembly may be piping cartons be placed in a warm room installed inside a dispenser sump, a deep for hours directly prior to installation. If this is not possible,then a small dispenser pan or within. They are fitted �_ hole should be cut in the top center of the lid of the carton for insertion With the riser jacket kits to secondarily of the nozzle of a conventional hair dryer. For piping reels,place a tarp contain the steel riser pipe and riser pipe over the reel and then insert the hair dryer nozzle directly into the end of adapters to seal-off to the top end of the the piping.If this pipe warming procedure is done,do not use the first steel riser pipe. These types of riser pipe 12"of the pipe due to possible damage by the hair dryer.Depending on assemblies may be fitted at their lower end the ambient temperature,it may take up to an hour to warm the roll of with only a coaxial tee or elbow fitting piping sufficiently. depending on the application. Follow the previous installations under 12.3 except for the following: 13.3 GeoFlex Measuring When measuring the distance between containment sumps or (11. Install the riser pipe adapter onto the pans to determine the proper length of a flexible pipe section to steel riser pipe assembly instead of the be installed, it is important to consider that the pipe is flexible shear valve itself. Center the riser pipe and will not be installed perfectly straight. A slight weaving of adapter at the top edge of the riser jacket. the pipe in the piping trench is recommended to compensate for expansion and contraction. The recommended measuring and cutting procedures for the GeoFlex piping are described below: 13.3.1 Direct Pipe Burial Applications When measuring for direct burial of GeoFlex®-S and GeoFlex®-D, (2). Place lubricant(White Lithium grease �y the measuring points will be from the face of one adapter/fitting or 0-ring lubricant)generously around the bl to the next. If swivel couplings and fittings are used,subtract 1" steel riser pipe, 1/2" below the shear valve _ to allow for the length of the two pipe couplings and cut the adapter as shown. piping to that length. If barbed fittings are used,add 3-1/2"for 1- 1/2" piping, 4-1/2" for 2" piping and 6" for 3" piping. For coax Al application, no modification to the measurement is necessary. (3). Position the rubber bushing securely ►'° ,,;. into riser pipe adapter.Tighten the riser -- pipe nut securely onto the shear valve ; `?y adapter so that the rubber bushing is fully compressed.Do not use any tools to secure the coax riser nut. 15