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OPW Installation , Operation , and Maintenance Manual , Page 74 Executive Order VR- 102-0 4 ; ®Registered T. M. Owens Corning Fiberglass Corporation ASSEMBLY INSTRUCTIONS ach of the numbered steps in the instal " Tape measure IMPORTANT : E 1 .� lation instructions are designed as a CHECK LIST to en - f sure proper installation and trouble free operation of the IA OPW61 SO Overfill Prevention Valve . �I Read and follow these steps carefully , checking them off as you proceed . 1 = Riser Pipe � ) Figure numbers correspond to step numbers for easy with Face To Tank ( ) reference . Seal Adaptor Top To ° ( 1 . ) Tank STEP 1 : MEASURE ; Bot om Install the OPW Face Seal Adaptor and the OPW Thread - i on Spill Container on the Fill Riser ( Refer to the Installa - tion Instructions Supplied with the Spill Container) . In - sert a tape measure through the riser pipe and hook it under the inside of the tank in the lengthwise direction . EXAMPLE ' Measure the distance from the top of the Face Seal , , 1 ) For an Owens- Corning Model G3 FiberglassCR Tank Adaptor threads inside the base of the spill container z Calibration Chart : bucket just below the drain valve outlet window to the Tank Capacity 101000 gall , nominal 9 ,403 gall inside , top lip of the storage tank ( Dim . "A" ) NOTE : Use actual capacity only ( See Figure 1 & 1A) . 2 ) 95 %a of actual tank capacity = 0 . 95 x 9403 gal . n the Face Seal _ The top flange on the 61 SO will rest o 8933 gal . Adaptor just below the drain valve outlet , and be locked 3) The closest numberwhich is less than 8933 gal . Is in place between the Face Seal Adaptor and the 4 " 7 8910 gal . Choosing the closest number less than nipple that is installed in the spill container with the 95 % of actual capacity ensures that the initial Jack Screw Kit ( See Figure 1A) . ( For riser pipe configu - I; I shutoff will occur when the tank is no more than rations other than that shown , consult installation 95 % full . drawings or use other necessary means to measure Dk 4 ) The calibration chart reading of 8910 gal . corre - mension " A" ) . sponds to a dipstick measurement of 82 " . Using a tape measure , measure the distance from the top C 5 ) Dipstick number ( X ) = 82 " of the Face Seal Adaptor in the spill container to the Tank diameter ( Y ) - 92" bottom of the tank ( Dim . i (Y ) ( X ) _ (Z) ( 92" 2" = 10" ) IMPORTANT : Inspect the riser pipe for any foreign ma- e€ (Z) = 10" terial . Over spray from tank relining or any internal burrs 6 ) (Z) - 2" = C ( 10" - 2" = 8") inside of pipe must be removed prior to installation . 0,16 C - 8" Failure to have an unobstructed riser pipe may prevent 011, proper installation and operation of the valve . The 61 SO 7 ) Is 8" less than 6- 112" ? is designed for installation into schedule 40 riser pipes . The 61 SO cannot be installed into schedule 80 riser f NO Measure the distance from the top of the FSA- pipes . 400 Face Seal Adaptor installed on the riser pipe STEP 2 : MARKTHETUBE s to the inside , top lip of the storage tank and5 obtain measurement (A) . Use the result from Step 1 and HOW TO LOCATE THE li POSITION OF THE 61SO AT95% TANK CAPACITYto I Upper tube length = C + (A) mark the upper tube . Measure the distance from the point where the upper tube and valve meet . For alve body 11 " C" measurements greater than 6111, 1l2" use tape measure to mark the calculated upper tube length onto the upper tube . i, t i