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PART ONE INSTALLATION INSTRUCTION FOR Red Thread IIA PRIMARY PRODUCT PIPING • Proper installation is the key to achieving a highly reliable, adhesive bonded, matching taper, bell and spigot joint. • Matching taper angles on spigot and bell ends make it possible to lock up a joint by wedging the spigot into the bell so that it takes significant force to separate them. Proper lock up is essential. • A very thin line of adhesive (called the bond line or glue line) between the two matching tapered surfaces is nec- essary to achieve optimum joint strength. • Proper installation results in joint strength equivalent to or stronger than the piping systems. To achieve the most reliable piping system. it is essential that the installation orew be familiar with the joining teohniques in this manual. JOINING SYSTEMS The adhesive bonded, tapered bell and spigot joint is the primary joining method for 2"-4" (50 mm -100 mm) pipe - to -fittings. The T.A.B. joint is the primary joining method for pipe -to -couplings. When combined with the adhesive, the mechanical locking action promotes positive make up of the joint and prevents backout during adhesive carting. Pipe is supplied with T.A.B. spigot x TA.B. spigot ends. Fittings are manufaotured to aooept either a tapered spigot or T.A.B. spigot end of the pipe. Tapers can be made in the field with tools designed for this purpose (see page 3). Bells cannot be field made. When a belled end is needed, a sleeve coupling is required. LAYOUT AND PREPARATION While handling, storing, and transporting the pipe, it sometimes E inours rough treatment. Inspeot all pipe surfaoes for possible damage to the pipe wall and spigot ends. Damaged pipe must be out out and replaoed. Inspeot fittings for any damage. If in doubt about damage, oontaot your distributor or representative. Exposing machined surfaces to direct sunlight will result in loss of joint bonding strength. Because the degree of weathering or surface degradation and subsequent effect on bond strength varies greatly, it is difficult to place a fixed time limit on the acceptable amount of exposure. In all instances where protective coverings are removed from machined surfaces and ultraviolet exposure exceeds one day, corrective action must be taken. Layout -- Advance planning of the piping layout can reduce the quantities of material required and will make servicinq the system easier. NOTE: The soarfed oontainment pipe must be positioned over the produot pipe before bonding the produot pipe. Installation Crew Size and Organization Each installation is different and requirements change depending on whether the installation is simple (long, straight runs of piping) or complex. Requirements are also affected by pipe size, installation temperature, and site locations. TABLE 2. Suggested Units of Labor for Installation For guidance under specific circumstances, consult your dis- tributor or representative. Before beginning an installation, review the Red Thread IIA Installation Checklist (132161) with the crew and fill out as the job progresses. A completed copy should be retained to document compliance with current State/Federal regulations. Installation checklists are available from your distributor or representative. Following are general guidelines that apply to most piping Installations: • For most average -size service stations, the minimum recommended crew size is two. The crew size may be increased as the pipe diameter increase or when installing secondary containment piping. • Organize the crew so the adhesive is spread on the bonding surfaces as quickly as possible after mixing the adhesive, particularly in extremely hot weather. • Plan adhesive kit usage so that sufficient kits are available in the area where the bonding will take place. • Plan ahead so a sufficient number of bonds are available to use one whole adhesive kit before the kit is mixed. R Tapering Hand Power Pipe Size Cutting Joint In.( Min/ Tool Tool Make-up mm Opt Min;'Opr MiniOpr Minutes 2 50 0.5 1.5 0.3 1.0 3 75 0.5 2.5 0.3 2.0 4 100 1 0.5 3.5 0.5 3.0 For guidance under specific circumstances, consult your dis- tributor or representative. Before beginning an installation, review the Red Thread IIA Installation Checklist (132161) with the crew and fill out as the job progresses. A completed copy should be retained to document compliance with current State/Federal regulations. Installation checklists are available from your distributor or representative. Following are general guidelines that apply to most piping Installations: • For most average -size service stations, the minimum recommended crew size is two. The crew size may be increased as the pipe diameter increase or when installing secondary containment piping. • Organize the crew so the adhesive is spread on the bonding surfaces as quickly as possible after mixing the adhesive, particularly in extremely hot weather. • Plan adhesive kit usage so that sufficient kits are available in the area where the bonding will take place. • Plan ahead so a sufficient number of bonds are available to use one whole adhesive kit before the kit is mixed. R