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Jun 05 02 02:47p Elite Iv Contractors Inc 209461 342 p.5 Primary Piping System In Cation T.A.B. Joint T.A.S. joint installation pro- ceduresJOINT follow the normal bell Ambient Cure and spigot operations of cleaning, , Cure time is the time requried for the adhesive in the AN`-."." adhesive mixing, etc. as described assembled joint to harden. Cure time depends on the type previously. The threads on the of adhesive and the ambient temperature, as shown in Table bonding surfaces are designed to 7. improve the reliability of the joint, particularly under adverse conditions. Two T.A.B. wrenches TABLE 7. Adhesive Ambient Cure Time or strap wrenches are recommended when joining T.A.B. pipe. Separate T.A.B. wrenches are available from Smith Fibercast for each size pipe. The wrenches lock around the pipe and force the pipe into a very slight oval shape. Therefore, the wrenches must be placed 6" to 12" (150 mm to 300 mm) away from the joint to assure good joint make up. NOTE: If T.A.B. wrenches are not available, strap wrenches such as Ridgid No. 2-P, can be used. To prevent damage to the pipe wall, wrap the strap wrench around the pipe as shown. CAUTION: Improper use of pin w strap wrenches can cause point -loading damage and/ or bad joints that are locked up. In Pipe•. order to gain experience in determining the proper amount of torque to use, the Strap following procedure is recommended Handle X for the first few joints. DO NOT OVER TIGHTEN. Cover all machined areas on the spigot and at least one-half inch beyond the last thread in the bell with the adhesive. Screw the pipe together by hand, ensuring that the joint is not cross threaded. Two inch (50 mm) diameter pipe can be hand tightened. To ensure complete joint make up for 3" and 4" (75 mm and 100mm) diameter pipe, use T.A.B. wrenches. Check lock up by moving free end of pipe in an up- and-down or side-to-side motion. The movement must be sufficient to move the joint being checked. No movement should be visible in the joint. If any movement exists, continue to tighten until no movement is visible. Connections into fittings are made using the normal bell spigot methods. Hyy �� e✓l � , 0 Adhesive Type Temperature Degrees F Degrees C Cure Time (Hours) 7000 110 43.3 2 90 32.2 3 80 26.7 5 70 21.1 8 60 15.6 18 55 12.8 24 8000 110 43.3 1 90 32.2 2 80 26.7 4 70 21.1 6 60 15.6 12 55 12.8 18 NOTE: Cure time is the time before the line can be tested. Times may vary depending on temperature, humidity, etc. Heat Assist Methods When working attemperatures below 55°F oris situations where rapid cure is necessary, Fiber Glass Systems has developed heat assist methods for curing adhesive bonded pipe or fitting joints. rheating ectric Heating Collare most effective method heat assist is electric collars. Reusable heating collars are energized by a 1001120 volt power source. NOTE: 220/240 volt heating collars are available on special order and are shipped without the male plug. Curing Operation - It is desirable, but not necessary, for the curing operation to immediately follow the bonding operation. However, in cold weather it is preferable to bond only the amount of pipe that can be cured during the same day. If generator is used, assure the power supply is adequate for all of the units being used. Use 110/120 Volt A.C. only. When extension cords are used, make certain they can handle the total wattage of the collars used. Refer to Table 4 on page 4. • When temperatures fall below 32°F (01C), fiberglass insulation should be added to heat collars to achieve a '--4Dror)er cure.