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RED THREAD IIA PIPE SYSTEMS <br /> Red Thread IIA piping systems are made of fiberglass reinforced, aromatic amine cured, rigid, thermosetting epoxy <br /> resin. The pipe is manufactured using the classical reciprocal filament winding process where fibers are wound around <br /> a steel mandrel under controlled tension at a prescribed angle, optimized for stresses caused by pressure. Most fittings <br /> are made in matched-die compression molds where the pre-impregnated (pre-preg) fiberglass bands are chopped and <br /> placed in the mold cavities where heat and pressure are applied to form the consolidated part. Fittings can also be <br /> made by the filament winding process, where efficiency and practicality make this possible. <br /> Pipe and fittings are bonded together using a two-part adhesive, specially formulated forstrength, fuel resistance and <br /> ease of handling, including the ability to mix, apply and cure at ambient temperatures above the minimum. <br /> Joining Methods + <br /> The primary method of joining pipe-to-pipe is with a T.A. B. (threaded 1 � ' <br /> and bonded) coupling. Matching, low profile threads on the pipe and ' '++>f= <br /> in the coupling allow a mechanical fit of the components while the a, <br /> adhesive cures,assuring a tight make-up. <br /> Pipe-to-fittings bonds are made with matching tapers that"lock" <br /> together as they are joined with either an axial force or a slight twist r <br /> i <br /> while a "push"is being applied by hand (for 2-inch pipe only). Pipe with , . <br /> T.A. B.threads can also be bonded into smooth,tapered ends of fittings �' T <br /> using the same method. "• , . <br /> Complete joining instructions are available, alongwith a comprehensive <br /> set of tools to perform the installation procedures. <br /> Secondary Containment Old vs.New-Pipe in the foreground was installed in 1973 and removed 27 years <br /> later when the station closed. <br /> Where secondary containment is needed, Red Thread IIA provides a <br /> true pipe-in-a-pipe system. Containment pipe is identical to the primary <br /> pipe.Sections are joined togetherwith matching two-piece clamshells <br /> that are bonded and bolted together.one half of the clamshell fitting <br /> is pre-fitted with female threaded fasteners to make assembly fast and <br /> easy from one side of the fitting. <br /> RECEIVED <br /> MAY 24 ?0'3 <br /> ENVIRONMENTAL <br /> HEALTH DEPARTMENT <br /> Fiber Glass Systems I KOY P d�ctio�olutions <br />