COMPLIANCE INFO_2003-2005 - Laserfiche WebLink

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Before beginning the actual assembly procedures, read and make sure you and all individuals involved in the installation thoroughly understand the following information and precau- tions: Matching taper angles for the spigot and the bell make it possible to me- chanically "lock up" a joint by wedg- ing the spigot into the bell. This produces a very thin line of adhesive called the bond line, or glue line, which is only a few thousandths of an inch thick. In all cases, the bonding surfaces must be clean and dry before applying adhesive. Joint strength of the bell and spigot joint is essentially controlled by the adhesive thickness between the two matching tapered surfaces. The ad- hesive is relatively brittle in thick sec- tions and fails easily if the bond line is too thick. The mechanical lockdeter- mines adhesive thickness. Smith Fiberglass Products offers free, in-depth training seminars covering both primary product and secondary containment piping installation pro- cedures. The training seminar in- volves hands-on participation, and each attendee receives a complete Smith Fiberglass Products petroleum marketing catalog containing instal- lation manuals used during the semi- nar. Each installer attending also receives documentary proof of atten- dance. Joints that are not locked -up during installation may pass an initial steady pressure test but can fail ata later date due to reduced bond strength caused by the thick adhesive. Therefore, it is essential that the installation crew be familiar with the joint concept and understand the importance of com- pletely inserting and locking the spigot into the bell. The mechanical lock- ing of the joint is absolutely essential to develop the full strength of- the joint. Using mechanical force(such as ham- mering against wooden block placed against a fitting or bell end of pipe) helps achieve lock-up. Note: This is the same mechanical lock of match- ing tapers that is commonly used on machinetools. ForT.A.B.T� (threaded and bonded) joints, special T.A.B. wrenches are recommended to achieve the mechanical lock-up in the joint. Due to the ever-increasing need for manufacturer -trained installers, we highly recommend that anyone di- rectly involved in underground pip- ing installations attend the Smith Fi- berglass Products installation train- ing seminar. For current information on training seminars, contact your local Smith Fiberglass Products dis- tributor or representative. To assist installers with proper instal- lation of fiberglass piping systems, 3 Cool weather conditions require spe- cial procedures when bonding pipe and fittings. The adhesive is very viscous (thick) when it is applied to cool pipe or fittings. This thick adhe- sive can actually be stiff enough to preventcompletejointlock -up. There are different installation procedures for both warm and cool weather in- stallations. These procedures are of- ten overlooked when a crew installs piping when there are significant tem- perature variations throughout the day or week. All bonding surfaces must be factory fresh in appearance. When end caps have been lost, surfaces will weather and cause a significant loss of bond strength. When surfaces are weath- ered, retaper spigots and sand bells to achieve a factory fresh appearance (See Part One, Section 8). NOTE: T.A.B. COUPLINGS THAT HAVE BEEN WEATHERED MUST BE RE- PLACED. the Fiberglass Petroleum Tank and Pipe Institute has prepared an instal- lation checklist, "Fiberglass Piping Systems Installation Checklist for Un- derground Petroleum Pipe". This sheet is included in Smith Fiberglass Prod- ucts petroleum marketing catalogs. For a copy of this checklist, contact your local Smith Fiberglass Products distributor or representative.