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CNI Manufacturing Installation, Operation and Maintenance Manual (IOM) <br />Applicable to Executive Order VR -104-D <br />Bellows <br />Buna N, rubber <br />Spill container <br />Oval flange <br />SNAP -TIGHT COVER <br />Figure P1 <br />1) Cut the 4 inch N.P.T. Product Riser Pipe to Length and Install <br />the <br />le cover <br />GAL. <br />GAL. <br />GAL. <br />a) The length of the product riser pipe will vary depending upon the size of the spill container and <br />the depth of the underground storage tank. Regardless of these variables, the product riser <br />pipe must be cut such that the distance from the top of the product tank riser to the finish grade <br />is 19 inches (plus or minus %2 inch) for the 5 -gallon product spill container; 30 inches (plus or <br />minus'/2 inch) for the ten (10) gallon product spill container; and 37 inches (plus or <br />minus '/z inch) for the fifteen (15) -gallon product spill containers. <br />b) To determine the length of the product riser pipe, measure the distance from finish grade to the <br />top of the tank bung. Deduct: <br />19 inches (plus or minus'/2 inch) for the five (5) gallon vapor spill containers. <br />30 inches (plus or minus'/2 inch) for the ten (10) 15 gallon vapor spill containers. <br />37 inches (plus or minus % inch) for the fifteen (15) gallon vapor spill containers. <br />b) Once the proper riser length is established, use a roller style, 2 -blade pipe cutter to ensure a flat <br />square cut across the top of the product riser. DO NOT USE A HACKSAW TO CUT RISER <br />PIPE RISER. Verify squareness with a T-square or bevel. <br />d) Cut tapered N.P.T. threads on both ends of the product riser for a minimum length of <br />1 1/8 inches. <br />e) Ensure that a square, flush, smooth, sealing surface is achieved across the top of the product <br />riser pipe. De -burr and clean riser threads. <br />f) Apply a Teflon®, Fire Marshall approved thread sealing compound on the lower male threads of <br />the 4 inch product riser pipe. Manually tighten the product riser pipe into tank bung, then torque <br />to value specified in Table 2. <br />15627 ARROW HIGHWAY, IRWINDALE, CALIFORNIA 91706 <br />PHONE (626) 962-6646; OUT OF STATE CALLS (800) 4CNI-MFG; FAx (626) 962-4854 28 <br />WEBSITE: WWW.CNI-MFG.coM EMAIL: INFo(a)CNI-MFG.COM <br />