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Dipstick number (X) = 82" Tank diameter- (Y) 9r (Y)- (x) = (7) . IT (Z) - C ( 10' - 2' 81 C=fsg Is ir less than 6-la'? NO Measure thP distance from the top of the FSA- 400 Face Seal Adaptor installed on the riser pipe to the inside, top lip of the storage tank and Ob- tain measur einerot (A) . Upper tube length = C + (A) For tastable modals only, ending in Upper Tube Langth C + (A) - 1-1/2" ASSEMBLY INSTRUCTIONS IMPORTANT: Each of the numbered steps in the in instructions ar e designed as a CHECK LIST to ensure proper Installation and trouble free operation of the opw 7150 Overfill Prevention Valve. Read and follow these steps carefully,. checidng them off as you proceed. Figure numbers correspond to step numbers far easy reference. STEP 1: MEASURE Install the OPW Face Sea/ Adaptor and the OPW Thread- on Spill Conniner on the Fill Riser [Refer to the rnsraila- Lion Ingructions Supplied with the Spill Container). In- sert a tape measure through the riser pipe and hook It tinder the Inside of the tank in the lengthwise direction. Measure the distance horn the top of the Face Seal Adaptor threads Inside the base of the spill container bucket )ust below the drain valve outlet window to the inside, top lip of the storage tank Pim. "An (s.• Figure 1 &1Al. The top flange on the 7150 will rest on the Face Seal Adaptor just below the drain valve outlet, and be locked in place between the Face Seal Adaptor and me 4" nipple that is installed in the spill container with the Jack Screw Kit (See Figure 1A). (For riser pipe conflgura tions other than that shown, consult instxiation draw- ings or use other necessary means to measure Dimeh sion Using a tape measure, meaf.0 re the distance trom the top of the Face Seal Adaptor tn the spill container to the bottom of the rank Dim. T). IMPORTANT; tnspea the riser pipe for any Foreign mate- rial. Over spray from tank relining or any internal burrs Inside of pipe must be removed prior to instalia tion Failure to have an unobstructed riser pipe may prevent proper Installation and operation of the valve. The 71 SO is designed for Inst3IlatIon Into schedule 40 riser pipes. The 71SO cannot be Installed into schedule 80 riser pipes. STIP 2.z MARK THE TUBE Use the result from Step 1 and HOW TO LOCATE THE POSITION OF THE Y ISO AT 95% TANK CAPACMr` to mark the upper tube. Measure the distance from the seam where the upper tube and valve body meet- Use a tape measure to mark the calculated upper tube kingth onto the upper tube. See Figure 2 Figure I Ruins IA