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STEP 18: [.OWER TUBE ASSEMBLY FOR STANDARD VAPOR TIGHT MODELS, PROCEED <br /> If a vise Is used, clamp on the vale oThread the lowe� TO STEP <br /> 20 ON PAGE 14& <br /> avoid damage to the float and to <br /> tube onto the valve body until the lower tube bottoms 1=ORTESTAfILE �O"DELS' PROCEED TO PAGE 1 <br /> out on valve body. Tube can be tightened by hand or <br /> with a strap wrench. If a strap wrench is used try to po- <br /> sition it on the threaded Insert <br /> be portion of the lower tube <br /> to prevent damaging the <br /> iThrepadedinsert <br /> Figure 7S <br /> NATE: Before installing the valve in the tank, a pres- <br /> sure test can be performed on the valve to check for <br /> vapor tightness. Seat off both ends of the tube with <br /> inflatable plumber's plugs* Apply a maximum 10" <br /> W,C. (113 PSI) air pressure* if pressure does not hold <br /> and a leak can be located with soap solution, do not <br /> install the valve. Send the valve back to OPW for <br /> warranty evaluation. <br /> CAUTION: Do not over�pressuriae. Excess pressure <br /> can damage the valve. <br /> STEP 19: CUT LOWER TUBE <br /> Measuring from the underside of the inlet tube flanget <br /> mark the overall length of the drop tube a distance of <br /> (B) minus 6". Determine dimension (B) from <br /> urements taken in Step 1 , Figure 1 (Top of the Face Seal <br /> Adapter below the drain valve outlet in the spill con' <br /> tainer to the bottom of the tankvodes ooff the excess e- <br /> tube at a 45-degree angle or per local <br /> meats and file off any <br /> Optional: Install the OPW Tank Bottom Protector <br /> er to Installation instructions sup <br /> on the lower tube (Ref - <br /> plied with the Tank Bottom protector). <br /> IMPORTANT: Remove apQ ips and NOT remove chips andngs out <br /> the cut end of the tubev <br /> shavings by dumping thru valve body. <br /> 12 <br />