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Manual 1190 October 1, 1986 DOUBLE-WALL SECONDARY CONTAINMENT PIPING INSTALLATION INSTRUCTIONS SMITH SMITH FIBERGLASS PRODUCTS INC., A SUBSIDIARY OF A.O. SMITH CORPORATION 2700 West 65th Street - Little Rock, Arkansas 72209-8592 - Telephone: (501) 568-4010 - TWX NO. 910-722-7377 The Smith Fiberglass Products double-wall secondary containment system is designed for use with U.L. Listed RED THREADS II pipe, manufactured by Smith Fiberglass. Secondary containment systems consist of the next larger size of pipe and special two-piece fittings. Refer to Manual 9474 or 1055 and Bulletin 1004 for installation in- structions for the U.L. Listed pipe. SECTION I PREPARATION AND ASSEMBLY A. Containment System Smith Fiberglass secondary containment sizes are: Containment For Product Pipe Size Pipe Size 3" RED THREAD II 2" RED THREAD II 4" RED THREAD II 3" RED THREAD II 6" RED THREAD II 4" RED THREAD II All factory spigots and couplings must be cut off the ro ^—n- ment piping prior to installation. Containrnant fittings accept only plain -end pipe (iitoroughly sanded). The ends of the containment pipe must be thoroughly sanded with 40-60 grit sandpaper to remove all surface gloss when the pipe is to be joined with fittings. Any heavy resin drips or surface irregularities must be removed. Belt sanders, disc sanders, drum sanders or a coarse cut flat file may be used. The sanded length must exceed 33/4". The containment pipe must be positioned over the RED THREAD II product pipe prior to bonding of the product pipe. After testing of the product pipe, the containment fittings should be installed and the containment system tested. ®RED THREAD is a registered trademark of Smith Fiberglass Products Inc Useful sections of Manual 9474: — Tool and Equipment List (NOTE: Two 7/16" wrenches are also required for installation.) — Storage and Handling — Layout and Preparation — Cutting — Bonding/Adhesive Mixing Typically the length of the containment system is determined from: L = (OAL of Product Piping) — (B) (See Figure 1) _Wuct Containment Pipe Pipe I OAL Ll Figure 1 Product Pipe Size B C 2" 3" 6„ T" 31/2' 61/2" 4 31/2" 71/2" C___ _OAL — B Example: If 2" product pipe is 20 ft., 6 in. long, cut containment pipe 20 ft., 3 in. long. NOTE: When terminating with a concentric reducer, use the C dimension in the table above. It is helpful to lay out the system, cut, taper and dry fit all product lines. Where possible, place containment fitting halves under the product fittings. (See Figure 2)