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OPW Installation , Operation , and Maintenance Manual , Page 76 Executive Order VR - 1024 STEP 7 ; DRILL HOLES ously apply sealant to the first 6 male threads on the 3 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 VJ 1 inch below the flange . Using the pilot holes , drill ( 3 ) tube onto the valve body . Tighten the tube securely by fj 5116 " dia , holes through the tubes . Remove the burrs hand orwith a strap wrench . Remove excess sealant from the drilling operation from the inside of the drop and smooth sealant bead with water moistened mixing l tube assembly with a fine half round file . tick IMPORTANT : Allow sealant ( epoxy) to cure for 24 , IMPORTANT : A 5/ 16 " drill bit must be used . Do not hours before installing into tank . GI F substitute any other size drill bit . !� a(rund 8151 t> lhrE3d5 � re s , ,g t fr Figure 70 ' CF NOTE : Before installing the valve in the tank , a pres- sure test can be performed on the valve to check for € vapor tightness . Seal off both ends of the tube with G Figure 7 inflatable plumber' s plugs . Apply a maximum 10" W . C . I ( 1 /3 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 SeahW STEP 11 : CUT LOWER TUBE AT 45 ANGLE Ali this time . Mix up asmall -_ Measuringfrom the underside of the inlet tube flange , amount of sealant. Gen- \ ' v mark the overall length of the drop tube a distance of erously apply sealant un �� y lot - ; g p derneath each clinch stud , [ i i ( B ) minus 6" or as per local codes or requirements . De - head , each nut, and on termine dimension ( B ) from the measurements taken in the outside of the tube fr ' Step 1 , Figure 1 (Top of the Face Seal Adaptor below the around the holes . = drain valve outlet in the spill container to the bot- tom i of the tank ) . Saw off the excess tube at a 45- degree r, angle , and file off any sharp burrs ( Refer to Figure 16 ) . I Optional : Install the OPW Tank Bottom Protector on the Figure a lower tube ( Refer to Installation instructions supplied with the Tank Bottom Protector) . fi STEP 9 ; TIGHTEN SELF-CLINCHING STUDS STEP 12 : PREPARE FILL RISER FOR VALVE INSER- Tighten clinch studs securely with a 1/2 ' wrench . Use TION only the self-clinching studs that are supplied with the IMPORTANT ; Inspect the riser pipe for any foreign maNi - unit . Seating torque is 11 . 5 ft-lbs min . to 13 . 5 ft-lbs terial . Over spray from tank relining or any internal max . Do not over tighten . Note : Failure to properly burrs inside of pipe must be removed prior to installs - 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 . If a vise is used , clamp on the valve body casting only to avoid damage to the float . Mix the remaining sealant01 until the color is uniform . Using the mixing stick , gener- II : I