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i -- REMEMBER: MIX ONLY alcohol product conveyed in The use of flat washers on all ONE KIT AT A TIME. the piping system. Do not use nuts and bolts is required. The 1.6.6 Connecting to other systems thread sealing tapes. For best maximum allowable torque is results, apply thread lubricant indicated on each flange. Adapters available for connecting to both the male and female to other systems include:threaded threads. Smith Fiberglass Products adapters (bell or spigot by NPT or flanges meet ANSI B16.5 Class BSP threads), reducer bushings Tighten threads 1 to 11/2 turns 150 bolt hole standards. Full- (NPT), and flanges. past hand-tight to ensure a face gasketing materials, 1/8- proper seal. inch(3 mm)thick,with a Shore Note: When using adapters with spigot ends,it may be necessary to CAUTION: Do not overtighten. A hardness of 60 to 70 duro- cut off a portion of the factory pipe Tighten the adapters as if they meter, are recommended for bell if the threads are not fully were brass or other soft material. Smith Fiberglass Products exposed. flanges. Gaskets made from NOTE: When using threaded Teflon and PVC usually have 1. Threaded adapters (NPT or reducer bushings, the bushing high durometer ratings and are BSP) and reducer bushings should be bonded and cured not acceptable. (NPT) (See Figure 1.6.23) before the male thread is screwed into the bushing. Connecting to flat-face flanges Before making up threaded - Smith Fiberglass Products connections,inspect the threads. You can use DS-8000 series flanges must be joined to flat- Do not use fittings with damaged adhesives instead of thread lub- face flanges.The recommended threads.Inspect all steel threads ricant on threaded adapters maximum torque is listed on and remove any burrs.Threads used with RED THREAD® IIA the flange label. must be clean and dry before pipe only. Connections made applying thread lubricant. with DS-8000 series adhesives 1.6.7 Flexible hose connections When usingthreaded adapters, must be heat cured. Be certain P Flexible hose connectors are thread them into the other to tighten as with standard thread lubricant. preferred when connecting the system before bonding onto product piping lines and vapor Smith Fiberglass Products pipe. 2. Flanges (See Figure 1.6.24) recovery lines to the under- Otherwise, unless a union is ground storage tank and dispenser used, it may be impossible to Before bonding the flange onto (See Figure 1.6.25). Use of flexible turn the adapter into the mating the pipe, make sure the bolt connectors at each location facili- thread. Best results will be holes line up with the mating bolt tates ease of installation and can obtained using a strap wrench holes on the other system. Do also prevent breaking of the lines and a solvent-free, soft-set, not bolt flange before bonding nonmetallic thread lubricant. unless insertion depth of spigot is fittings where settling might ca The thread lubricant must be previously checked to be certain cause excessive movement. How- chemically resistant (compat- that the spigot does not bottom ever,due to the inherently flexible ible) with the petroleum or out or extend through the flange. characteristics of fiberglass pipe from Smith Fiberglass Products, flexible connectors may not be Typical Pump Installations required when connecting to tanks.API publication 1615 states: "FRP piping, which is inherently flexible, can be used to create its own flexible joint if at least 4 feet p (1.2 m) of straight run is provided REO THREAD 11 FLE%IBLE THREADED ADAPTER �-CONNECTION between any directional changes of more than 30 degrees." Note:The use of swing joints is not Figure 1.6.24 Figure 1.6.25 recommended. 17