11 02/18 INSTALLING RTRP FITTINGS (IF USING ADHESIVE): 1. Lightly sand both the bell of the fitting and spigot of pipe with emery cloth. All surfaces must be clean and dry. 2. Pre-warm bonding surfaces after cleaning. 3. Use epoxy adhesive supplied for joining the pipe and fittings. When assembly is ready to be made, add the contents of the small container (hardener) to the large container (resin) and stir thoroughly until a uniform consistency is reached. Rubber gloves should be used when handling adhesive components & cleaner. 4. With the brush supplied, apply a thin layer of adhesive to the tapered surface on the spigot end of the pipe and to the bell of the fitting. 5. Without delay, insert the spigot slowly into the bell using a twisting motion until the fitting locks. Hold for 30 seconds to allow flow of adhesive. 6. Place the heating blanket of fitting and cure for 1 1/2 hours for Mil Spec adhesive installed when ambient air temperatures are less that 70oF. When ambient air temperatures are above 70oF, and for all other adhesives, cure for 30 minutes. Mechanical force such as a rubber hammer and block must be used to insure proper locking of the joints in sizes 2"-6". In sizes 8"-12" a come-along must be used to insure a proper locking of the joint. A properly assembled joint will show a small bead of adhesive around the entire circumference of the joint. THRUST BLOCKS: Thrust blocks must be installed wherever the pipeline changes direction or size as at tees, elbows and reducers or at any point that develops thrust such as at a valve or similar equipment. The above situations may occur either where the fittings etc., are directly buried in the soil, or are in a manhole. Thrust blocks must be designed for maximum anticipated operating or test pressure. If it is anticipated that pressures higher than normal operating pressures will be used at some later date, thrust blocks to accommodate such pressures should be installed initially. Size and type of thrust blocks depend on pressure, pipe size, and the type of soil. This information shall be supplied by the Design Engineer. Where a thrust block serves more than one line, the block must be designed to resist the sum of the thrusts of all the lines involved. Thrust