INSTALL 2019 - Laserfiche WebLink

Home Browse Search

installed and aligned facing the entry point of the flexible pipe sections. 11.2.1 Coax Connections To Tank Fittings Install the coax pipe adapters into the pipe fittings to accommodate the coax pipe couplings installed to the end of the flexible pipe sections. The adapters are attached by first applying thread sealant to the male pipe threads. Then hand tighten firmly followed by two full turns with a pipe wrench. CAUTION: Do not apply the plumbing wrench to the section of the pipe adapter which contains the test port. NOTE: For coaxial fitting NPT threads, use only UL°' classified thread sealant specifically formulated for gasoline and petroleum products. Do not overtighten coax type fittings. 11.2.2 Metallic Connections To Tank Fittings Install the metallic pipe adapters into the pipe fittings to accommodate the metallic pipe couplings installed to the end of the flexible pipe sections. 12.0 DISPENSER SUMP PIPE CONNECTIONS The plumbing connections required inside dispenser sumps can be simple or complicated depending upon the plumbing requirements, dispenser size, and pipe entry locations. Pipe entries that are located considerably off the center line may require the use of flex connectors as riser pipes instead of rigid steel riser pipes. For some dispenser models, the pipe entries are located so close to the wall of the dispenser that product offsets are required. The type of piping application specified shall determine what type of piping connections shall be made inside dispenser sumps. NOTE: Prior to all flexible piping connections in dispenser sumps the riser pipe assemblies must be installed and test boots, if used, must be installed. 12.1 Riser Pipe Assemblies Riser pipe assemblies are designed to interconnect one or two flexible pipe sections to the above ground product dispenser. At the top end they may or may not be fitted with a shear valve and are typically mounted to a stabilizer bar. At the low end they may be fitted with either tee fittings or elbow fittings. Refer to the following riser pipe options available with OPW-FCS's flexible piping system. 12.1.1 Steel Pipe Riser Measuring: Cutting the steel riser pipe to the proper length will allow the piping to enter the dispenser sump on a straight and level plane and in line with the tees, elbows and adapters. Improper riser length results in stress at the pipe fitting/pipe coupling connection. Please follow the steps noted below: • Install the stabilizer bars in their proper position, per OPW FCS Stabilizer Bar Installation Instructions, which 10 F/exWOQ R KS BY OPW FUELING CONTAINMENT EYETEME can be determined by the dispenser manufacturer's footprint for the particular dispenser model. This will allow for proper vertical alignment. Install the shear valve to the shear valve mounting plate and secure this to the stabilizer bar in accordance with the dispenser manufacturer's footprint. Install the entry boots in accordance with the OPW-FCS Flexible Entry Boot installation instructions. • Line up the center of the entry boot with the center of the opening of the tee, elbow or adapter. • Determine the length of the steel riser by measuring between the bottom of the shear valve and the top of the tee, then add 1-1/2" to that length prior to cutting the NPT threads for each end of the riser. • Install the riser to the top of the shear valve with the use of soft set pipe dope that is approved for use with petroleum products. • Install the tee, elbow or adapter to the bottom of the riser, positioning it properly to align with the entry boot horizontally, with the use of soft set pipe dope that is approved for use with petroleum products. • Reinstall the riser set up to the stabilizer bar and then make sure that the tee, elbow or adapter opening is on center with the entry boot opening on both the horizontal and vertical plane. Assure that the opening of the tees, elbows or adapters are all on center with the entry boot, on both the horizontal and vertical plane. 12.2 Non -Contained Riser Pipe Non -contained riser pipe assemblies are only permitted if they are to be installed inside dispenser sumps. These riser pipes assemblies may have a coax or swivel fitting installed at the base of the steel riser pipe. 13.0 FLEXIBLE PIPE FABRICATION After all plumbing trees have been installed inside the tank sumps and riser assemblies installed into either the deep or shallow dispenser sumps, fabrication and installation of the flexible piping may proceed. IMPORTANT: Only currently certified contractors with a valid factory training card are authorized to install Flex piping. 13.1 Pipe Handling At Jobsite Care must always be taken when handling OPW-FCS's flexible piping to prevent damage. It is recommended that the carton be placed in the sunlight several hours before measuring and cutting the pipe, so the pipe may relax for easier extension when measuring. WARNING: Do not drag, cut or scrape the pipe during installation to avoid damage to the external surface of the piping. Use only OPW-FCS approved backfill