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5) Dipstick number(X)=82" top of the Face Seal Adaptor in the spill container to the Tank diameter(Y)=92" bottom of the tank(Dim."B"). (Y)-4X)=W (92"-2"= 10") IMPORTANT:Inspect the riser pipe for any foreign mate- (7)- 10" rial. Over spray from tank relining or any internal burrs 6) (Z) 2"=C 41 a"-2"M 8") inside of pipe must be removed prior to installation. C=8" Failure to have an unobstructed riser pipe may prevent 7) is 8"less than 6-112"? proper installation and operation of the valve. The 7150 is designed for installation into schedule 40 riser pipes. The 7150 cannot be installed into schedule 80 NO Measure the distance from the top of the FSA- riser pipes. 400 Face Seal Adaptor installed on the riser pipe to the inside,top lip of the storage tank and ob- STEP 2: MARK THE TUBE tai n measurement(A). Use the result from Step 1 and NOW TO LOCATE THE POSITION OF THE 71SO AT 9S%TANK CAPACITY to Upper tube length=C+(A) mark the upper tube. Measure the distance from the seam where the upper tube and valve body meet. Use For testable models only,ending in"T": Upper Tulse a tape measure to mark the calculated upper tube Length=C+(A)-1-112" length onto the upper tube. See Figure 2. ASSEMBLY INSTRUCTIONS Tapa measure IMPORTANT: Each of the numbered Steps in the in- stallation instructions are designed as a CHECK LIST to ensure proper installation and trouble free operation of the OPW 71 SO Overfill Prevention Valve. Read and follow these steps carefully,checking them Riser Pipe with Face off as you proceed. Seal Adapter (A) To Tank (B) Figure numbers correspond to step numbers foreasy op(I.D.) To Tank reference. am STEP 1: MEASURE Install the OPW Face Seal Adaptor and the OPW Thread- on Spill Container on the Fill Riser(Refer to the Installa- tion Instructions Supplied with the Spill Container). In- Figure 7 serf a tape measure through the riser pipe and hook it under the inside of the tank in the lengthwise direction. Measure the distance from the top of the Face Seal Adaptor threads inside the base of the spill container bucket just below the drain valve outlet window to the 4°NFT inside,top lip of the storage tank(Dim,"A") (See Figure Nipple 1 WA). The top flange on the 71 SO wilt rest on the Face Seal Adaptor just below the drain valve outlet,and be locked in place between the Face Seal Adaptor and the ° OP%N Spill 4"nipple that is installed in the spill container with the Container Jack Screw Kit(See Figure 1A). (For riser pipe configura- Jack Screw tions other than that shown,consult installation draw- Measure tb ew he Kit legs or use other necessary means to measure pirr�en- for Jack 2'installation v-Ring Seal cion"A"). (Top d Face Seal An smpt w) Face Seal Using a tape measure,measure the distance from the 71 SO Adaptor Figure 1A s