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VAPOR VENTS <br /> PRESSURE VACUUM VENT-A CARB-certified vent utilized for vapor recovery <br /> { applications. An internal pressure valve,which is set at 2"water column, plus or <br /> 4� minus 1"water column,restricts vapor escape during product drops.The pressure <br /> valve has a vacuum setting that does not exceed 1/2 oz. per square inch or 8" <br /> 5� water column of vacuum.The vent is designed to slip onto existing vent piping <br /> } and is held in place by three set screws. <br /> 4 Model# `Size Weight(lbs) Height Width Pressure <br /> 46CS-2080 2' 2.0 51 8 oz <br /> •Assures even pressure in the UST during filling or pumping <br /> •All metal construction <br /> •Flame-retardant 40 mesh bronze screen <br /> 46`i.7 •Conforms with NFPA-30 <br /> •CARB-certified <br /> BLOW OFF VENT-Provides venting to relieve excessive internal pressure build <br /> C� up in the event of a fire or during filling above ground storage tanks.The <br /> emergency vent will open at approximately 1 PSi.The mushroom design prevents <br /> water and contaminants from entering the tank. <br /> f r, Model# Size:. Weight(lbs.) Heigh Width <br /> f. r 48-40 4 » 18.8 i6' _71/2 <br /> 48-60 6' 30.0 6' 10' <br /> 48-li 8' 39.0 6' 121/i <br /> •Contains female threads <br /> •Mounts onto the tank <br /> 48 •Non-corrosive polymeric coating <br /> •Flame-retardant 40 mesh brass screen <br /> •Conforms with NFPA-30A <br /> 5 MUSHROOM VENT-Designed for venting of underground storage tanks.The <br /> "\ mushroom-style prevents water and contaminants from entering vent lines. It <br /> threads easily onto vent lines, and can be fit against flat walls or corners. <br /> - -- Model# Size . Weight(lbs) Height Widlh' <br /> r� 41.15 1112'_ __ ..0.9`. 111$ 3/4 <br /> 41-20 2 1.3 211e' 4' <br /> •Zinc-plated cast iron body <br /> 41 •Flame-retardant 40 mesh brass screen <br /> •Conforms with NFPA-30A <br />