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Primary Piping System Installation INSPECTING FOR POTENTIAL TESTING RECOMMENDATIONS CAUSES OF JOINT FAILURE Joint Backout - When assembling a bell and spigot joint, a bead of adhesive is normally formed at the edge of the bell. If the joint is not locked up and backs out before the adhesive cures, the bead will no longer be next to the edge Safety Precautions of the bell. FIBER GLASS SYSTEMS SHALL NOT BE LIABLE Cocked Joint- If a joint is cocked or misaligned, there will UNDER ANY WARRANTY, CONTRACT, OR IN usually be a large gap between the bell and spigot on one TORT, FOR ANY RESULTING INJURY TO PERSON- side.The opposite side will usually have a smaller or no gap. NEL OR DAMAGE TO EQUIPMENT, PIPE, OR Misalignment is easier to detect if one sights down the line OTHER PERSONAL PROPERTY FOR FAILURE TO and views the joint from a distance. FOLLOW THE PROCEDURES AND COMPLY WITH THE PRECAUTIONS SET FORTH. NOTE: When using heat assist, the pipe may bend if it is under stress while curing. In this case itis extremely difficult As in any system where pressure is employed,adequate to determine if the pipe is bent because of heating or if it is safety precautions should be exercised. EXERCISE a cocked joint. Avoid making up pipe and fitting joints when DUE CARE IN INSTALLING AND TESTING THE PIPING SYSTEM. pipe is under stress. Improperly Cured Joint - If the adhesive bead is soft or In buried applications,it is suggested that long pipe runs flexible, the adhesive is not sufficiently cured. If the bead is be partially backfilled at various points to secure them in cured,it is hard and brittle when checked with a knife. When place. All joints and connections should be left exposed for the bead is not hard after exposure to the recommended inspection. temperature and time cycle, the adhesive was not mixed FIBER GLASS SYSTEMS RECOMMENDS THAT YOU properly. CAUTION: The adhesive bead will cure faster DO NOT TEST ANY INSTALLATION WITH AIR OR GAS than the adhesive in the joint. It is important that the joint BECAUSE OF THE SAFETY HAZARDS CREATED. The not be pressurized until it has been subjected to the proper time-temperature cure cycle. A temperature vs. time-to- lightweight,flexibility,and elasticity of fiberglass pipe creates pressure chart is included in the instructions packed with different conditions than are present with steel pipe. If a each adhesive kit. failure should occur while testing fiberglass pipe with air or gas,the system would be subject to considerable Weather Damage-If a joint has been exposed to sunlight for whipping and other shock-induced conditions due to a long period of time and the machined area has turned from the sudden release of stored energy. The violent release white in color to yellow or brown and was bonded without can cause severe personal injury or death to personnel a proper repair, the joint may be suspect and could leak or in the area and can also cause property damage to the even separate. Inspect for color change on all machined pipe or other property. areas before bonding. If a line is tested with air or gas, Fiber Glass Systems Although not all inclusive, the conditions mentioned well not be responsible for any resulting injury to personnel above are the most common indications of failure to achieve or damage to property, including the pipe. If there is no a properly assembled joint. alternative to testing with air or gas,FGS will recommend test procedures and precautions to minimize possible hazards All damaged or improperly assembled joints must be but will not bear responsibility for damage or injury under replaced. See Repair Procedures on pages 14-15. any circumstances. Such testing is done entirely at the risk of those involved. Test Procedures - Installed FGS Smith Fibercast pipe systems should be tested prior to use to assure soundness of all joints and connections.In testing,sudden pressure surges or"water hammer" must be avoided, as in some instances surge or hammer can produce pressures of several times the rating of the pipe and fittings. Locate pressure gauge in close proximity to the pressurizing equipment,not directly on the piping system. Pressure gauge with the test pressure at mid scale is recommended. 12