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Smith Fiberglass offers Hi ProTM Thread Sealant. Hi Pro sealant makes installation of fiberglass threaded fittings easier and reduces the possibility of joint leaks. Con- nections assembled using Hi Pro sealant require only a "firm" hand tightening and may be pressure Figure 1.0.24 on the other system. Do not bolt flange before bonding unless in- sertion depth of spigot is previ- ously checked to be certain that the spigot does not bottom out or extend through the flange. The use of flat washers on all nuts and bolts is required. The maxi - Typical Pump Installations RED THREAD IIA THREADED ADAPTER FLEXIBLE ADAPTERS Figure 1.6.25 M fittings where settling might cause excessive movement. However, due to the inherently flexible characteris- tics of fiberglass pipe from Smith Fi- berglass Products, flexible connec- tors may not be required when con- necting 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 (1.2m) of straight run is pro- vided between any directional changes of more than 30 degrees." This statement can be misleading. The flexibility of FRP piping discussed in API 1615 is related to the bending properties. The straight run of pipe must be located in an area that will allow the pipe to bend over a 4 ft. length. The bending of this "4 ft. straight run" will prevent shear loads in the pipeline and not exceed the and reducer bushings (NPT) (See tested immediately thereafter. Re- mum allowable torque is indicated Figure 1.6.23) Before fer to Bulletin No. D4510 for in- stallation instructions for Hi Pro on each flange. making up threaded con- Smith Fiberglass Products flanges nections, inspect the threads. Do thread sealant. meet ANSI B16.5 Class 150 bolt not use fittings with damaged Tighten threads 1 to 1 1/2 turns holestandards. Full-facegasketing threads. Inspect all steel threads past hand -tight to ensure a proper materials, 1/8 -inch (3mm) thick, and remove any burrs. Threads seal. with a Shore A hardness of 60 to 70 must be clean and dry before ap- durometer, are recommended for plying thread lubricant. CAUTION: Do not overtighten. Smith Fiberglass Products flanges. When using threaded adapters, Tighten the adapters as if they Gaskets made from Teflon and PVC thread them into the other system were brass or other soft material. usually have high durometer rat - before bonding onto Smith Fiber- ings and are not acceptable. glass Products pipe. Otherwise, NOTE: When using threaded re- ducerbushings,thebushingshould Connecting to flat -face flanges— unless aunion is used, it may be y be BONDED AND CURED before Smith Fiberglass Products flanges impossible to turn the adapter into the male thread is screwed into must be joined to flat -face flanges. the matin thread. Bestresultswill g the bushing. The recommended maximum be obtained using a strap wrench torque is listed on theflange label. and a solvent -free, soft -set, non- You can use DS -8000 series adhe- 1.6.7 Flexible hose connections metallic thread lubricant. The sives instead of thread lubricant thread lubricant must be chemi- on threaded adapters. Be certain Flexible hose connectors arepreferred cally resistant (compatible) with to tighten as with standard thread when connecting the product piping the petroleum or alcohol product lubricant. lines and vapor recovery lines to the conveyed in the piping system. Do 2. Flanges (See Figure 1.6.24) underground storage tank and dis- not use thread sealing tapes. For Before bonding the flange onto penser (See Figure 1.6.25). Use of flexible connectors at each location best results, apply thread lubricant to both the male and female the pipe, make sure the bolt holes facilitates ease of installation and can threads. line up with the mating bolt holes also prevent breaking of the lines or Smith Fiberglass offers Hi ProTM Thread Sealant. Hi Pro sealant makes installation of fiberglass threaded fittings easier and reduces the possibility of joint leaks. Con- nections assembled using Hi Pro sealant require only a "firm" hand tightening and may be pressure Figure 1.0.24 on the other system. Do not bolt flange before bonding unless in- sertion depth of spigot is previ- ously checked to be certain that the spigot does not bottom out or extend through the flange. The use of flat washers on all nuts and bolts is required. The maxi - Typical Pump Installations RED THREAD IIA THREADED ADAPTER FLEXIBLE ADAPTERS Figure 1.6.25 M fittings where settling might cause excessive movement. However, due to the inherently flexible characteris- tics of fiberglass pipe from Smith Fi- berglass Products, flexible connec- tors may not be required when con- necting 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 (1.2m) of straight run is pro- vided between any directional changes of more than 30 degrees." This statement can be misleading. The flexibility of FRP piping discussed in API 1615 is related to the bending properties. The straight run of pipe must be located in an area that will allow the pipe to bend over a 4 ft. length. The bending of this "4 ft. straight run" will prevent shear loads in the pipeline and not exceed the