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OPW Installation , Operation , and Maintenance Manual , Page 76 Executive Order VR - 102 -Q STEP 7 : DRILL HOLES ously apply sealant to the first 6 mate threads on the lk With the inlet tube in place , carefully drill ( 3 ) 1 /8" diam - valve body as shown in figure 10 . Make sure coverage eter pilot holes through the drop tube and inlet tube at is completely around the threads , and work the sealant three locations at 120 degree intervals around the tube , down into the thread profile . Quickly thread the lower 1 inch below the flange . Using the pilot holes , drill ( 3 ) tube onto the valve body . Tighten the tube securely by 5/ 16" dia . holes through the tubes . Remove the burrs hand or with a strap wrench . Remove excess sealant from the drilling operation from the inside of the drop and smooth sealant bead with wafer moistened mixing tube assembly with a fine half round file . stick IMPORTANT : Allow sealant ( epoxy) to cure for 24 IMPORTANT : A 5116 " drill bit must be used . Do not hours before installing into tank. �i substitute any other size drill bit . --- 174 ncr y Sealant n ct ��: � Ei it ,r _ amu�d frst t, dh cads r � a r� k Figure 10 4 NOTE : Before installing the valve in the tank , a pres - €' sure test can be performed on the valve to check for I vapor tightness . Seal off both ends of the tube with Figure 7 inflatable plumber' s plugs . Apply a maximum 10" W . C . i ? ( 113 PSI ) air pressure . If pressure does not hold and a STEP 8 : ASSEMBLE AND SEAL CLINCH STUDS leak can be located with soap solution , do not install Loosely assemble the the valve . Send the valve back to OPW for warranty three ( 3 ) clinch studs , lock evaluation . Caution : Do not over- pressure . Excess pres ' washers , and nuts in sure can damage the valve . holes . Do not tighten at Apply SeA1111 STEP 11 : CUT LOWER TUBE AT 45 ANGLE ' this time . Mix up a small amount of seala `' \, f t Measuring from underside of the inlet tub Gen e flange nt . the , erousl a I sealant un �� f mark the overall length of the drop tube a distance of y pp y !` > ( B ) minus 6" or as per local codes or requirements . De - derneath each clinch stud j head , each nut, and on I �' � 1 " termine dimension ( B ) from the measurements taken in f" Step 1 , Figure 1 ( Top of the Face Seal Adaptor below the the outside of the tube drain valve outlet in the spill container to the bot- tom E around the holes . of the tank) . Saw off the excess tube at a 45- degree I angle , and file off any sharp burrs ( Refer to Figure 16 ) . i i Optional : Install the OPW Tank Bottom Protector on the Figure a lower tube ( Refer to Installation instructions supplied with the Tank Bottom Protector) . STEP 9 : TIGHTEN SELF-CLINCHING STUDS STEP 12 : PREPARE FILL RISER FOR VALVE INSER- € TION Tighten clinch studs securely with a 1/2 ' wrench . Use at are supplied with the IMPORTANT : Inspect the riser pipe for any only the self- clinching studs thforeign ma- I unit . Seating torque is 11 . 5 ftdbs min . to 13 . 5 ftdbs terial . Over spray from tank relining or any internal zl max . Do not over tighten . Note: Failure to properly burrs inside of pipe must be removed prior to installa - apply and cure the sealant may result in a failure of a tion . Failure to have an unobstructed riser pipe may pressure decay leak test. prevent proper installation or operation of the valve . STEP 10 : LOWER TUBE ASSEMBLY Thoroughly clean top of riser pipe . Rl If a vise is used , clamp on the valve body casting only to o avoid damage to the float . Mix the remaining sealant until the color is uniform . Using the mixing stick , gener- �i i