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Field Installed Fittings for Piping and Electrical Conduit Step 3 Step 3 Use clean, dry cloth to remove sanding dust from all Test coupling. sanded surfaces. NOTE: See Section D8, Hydrostatic Water Test for NOTE: If surfaces are contaminated with grease or details. piping dope, use clean solvent to thoroughly clean Step 4 bonding surfaces, then resand surfaces. After successful test, install secondary piping I In into MIX AND APPLY ADHESIVE FRP coupling. NOTE: Adhesive shelf life Is six months. Check pro- DISPOSE OF UNUSED CATALYST, ADHESIVE duction date on box. Step 1 Step 1 Mix unused tubes o catalyst and any unused cata- Confirm bonding surfaces of turbine enclosure and FRP lyst with adhesive tc form a solid for safe disposal. coupling are dry, clean, and sanded. Step 2 Step 2 Dispose of resulting solid as a nonhazardous waste in Thoroughly mix two part adhesive in accordance with accordance with federal, state and local regulations. detailed mixing instructions contained in adhesive kit. Step 3 E2. SECONDARY PIPING CONNECTION Apply adhesive with supplied putty knife to prepared surfaces on both fiberglass turbine enclosure and Two most commonly used methods to secondarily FRP fitting flanges. FIGURE 36 contain piping: Field Installed FRP Coupling I • Double-Wall fiberglass pipe (see figure 37). Turbine Enclosure Wall iI ♦ HDPE secondary containment system (see figure 38). (Interior) Female Male Note: Fiberglass pipe manufactured by Smith Fiberglass Section section and Ameron are dimensionally compatible with the Con- tainment Solutions supplied FRP Coupling. Typical methods to attach secondary piping are jshown in the following drawings: m Sand these surfaces first,then apply adhesive FIGURE 37 to these surfaces just before final assembly. Field Installed FRP Coupling Used With FRP Double-Wall Pipe Male section to be inserted from the inside of the turbine enclosure i Female Section Turbine Enclosure Interior ATTACH FRP COUPLING Fiberglass 1 Male Section Step 1 SecondaryPipe Insert male threaded coupling section from inside of turbine enclosure. Ste 2 Fiberglass Screw female threaded section from outside of tur- Primary Pipe bine enclosure. Adhesive Fill JIT I,Sand inner surface of coupling and outer surface of fiberglass. Step 3 Apply adhesive to inside surface of FRP coupling and outside Tighten down both sections by hand tightening until Surface of FRP pipe just before final assembly. adhesive is squeezed out from flange faces. FIGURE 36 Field Installed FRP Coupling Used With HDPE Secondary NOTE: Hand tighten only. Containment System Step 4 Female Section Turbine Enclosure Use flat stick or putty knife to fill in all gaps around Interior coupling flange and turbine enclosure wall. Fiberglass Pipe Stub Male Section CURING Fiberglass Step 1 Primary Pipe Allow a minimum of four hours for adhesive to harden. NOTE: Mating parts must not be moved before adhe- HDPE Secondary sive is fully cured. Containment System Step 2 Stainless Steel Hose Clamp Adhesive Fill For outside ambient tem eratures below 60°F, a I OSand inner surface of coupling and outer surface of fiberglass. P PP Y Apply adhesive to inside surface of FRP coupling and ouside supplemental heat to initiate adhesive curing process. surface of FRP pipe stub just before final assembly. NOTE: READ Adhesive Application Guidelines in NOTE: Flexible Entry Boots and Conduit Entry Boots Section D4. are available from Containment Solutions. Contact Tank Technical Support for installation details. 25