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fore, the wrenches must be and-down or side-to-side THREAD II secondary contain- placed 6" to 12" (152 to 305 motion.The movement must ment fittings for petroleum pro- mm) away from the joint to be sufficient to move the ducts, DS-7000 series adhesive is assure good joint make-up. joint being checked. No used to bond the joints. These NOTE: If T.A.B. wrenches are movement should be visible joints do not require heat-assisted in the joint.If any movement curing, but you can shorten the not available, strap wrenches, exists, continue to tighten cure time b applying heat. We such as Ridgid"'No.2-P,can be until no movement is visible.recommend external heat to used.To prevent damage to the assure full adhesive cure when pipe wall,wrap the strap wrench Connections into fittings are made ambient temperature is below around the pipe as shown in using the normal bell and spigot 70° F (21° Q. Figure 1 .6.15. CAUTION: methods. Improper use of strap wrenches It is desirable but not necessary for can cause point loading damage 1.6.5 Adhesive cure time the curing operation to imme- and/or bad joints that are not Cure time is the time required for diately follow the bonding opera- locked up. the adhesive in the assembled tion. However, it is preferable to In order to gain experience in joint to harden.Cure time depends bond only that amount of pipe and determining the proper amount on the type of adhesive and the fittings that can be cured during of torque to use, the following ambient temperature,as shown in the same day. procedure is recommended for the following chart (See Figure (')Tool Coil a registered trademark of the Ridge the first few joints. DO NOT 1.6.16). (2)Note:220/240 volt heating collars are available on OVERTIGHTEN. special order. IMPORTANT: When using RED a. Coverall machinedareason THREAD IIA pipe with RED the spigot and at least 1/2- THREAD II fittings and/or RED inch (13 mm) beyond the THREAD II secondary contain- ';;,, PINS last thread in the bell with ment fittings for alcohol and11 adhesive. alcohol-gasoline mixtures, you MUST use DS-8000 series adhe- b. Screw the pipe together by sive to bond the joints, and each hand,ensuring that the joint joint MUST be heat-cured using is not cross-threaded. Two- PIPE inch (51 mm)diameter pipe electric heating collars or chemi- can be hand tightened. To cal heat packs. Reusable heating ensure complete joint make- collars are energized by a 110/120 STRAP \ up for 3"and 4"(76 and 102 volt power source(2) (See Figure HANDLE 1.6.17). mm) diameter pipe, T.A.B. wrenches should be used. When using RED THREAD II or c. Check lock up by moving RED THREAD IIA pipe with RED Figure 1.6.15 free end of pipe in an up- THREAD II fittings and/or RED DS-7000 and DS-8000 Series Ambient Temperature vs.Time to Pressure Temperature(°F) Time(Hours) 55 24 60 16 65 11 70 9 75 412 80 4 85 3'h 90 3 100 2'h 110 1 2 Figure 1.6.16 Figure 1.6.17 Figure 1.6.18 14