Laserfiche WebLink
r- <br /> 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 'N <br /> and bonded) coupling. Matching, low profile threads on the pipe and ' '++>f= : i <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-fittingsbonds are madewith matching tapers that " lock " I <br /> together as they are joined with either an axial force ora slight twist r <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 /> usingthe same method . Or .. <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 2 4 ? 0f 3 <br /> ENVIRONMENTAL <br /> HEALTH DEPARTMENT <br /> Fiber Glass Systems I KOY P d�ctio�olutions <br />