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Tight Fill Products <br />Drop Tubes <br />Emco Wheaton offers a range of drop tubes to match various fill <br />system needs. These drop tubes are supplied in a variety of <br />lengths and are designed to be altered in the field to meet specific <br />tank dimensions. Installing drop tubes is fast and simple and <br />requires no excavation. The drop tube is inserted in the riser pipe <br />A20 Drop Tube <br />A70 Coaxial Drop Tube <br />The A20 Drop Tube is used <br />in conventional non -vapor <br />recovery and dual point vapor <br />recovery fill systems. The drop <br />until it touches the bottom of the tank. Next, the distance from <br />the top of the tube or lugs to the top edge of the riser pipe is <br />measured, and 3" is added. This length is then cut from the bottom <br />of the drop tube at a 450 angle. The tube is inserted into the tank <br />and is ready for use. <br />tube fits directly into the tank <br />riser pipe to permit tight fill <br />submerged filling with reduced <br />turbulence and minimal vapor <br />loss. The A20 is constructed of <br />lightweight aluminum for easy <br />handling and installation. <br />Complete with buna gasket. <br />Cut 450 in the field to fit. Use <br />with the A30 Fill Adapter and <br />A97 Tight Fill Cap. <br />Model No. Size Length Weight Adapter* Bushing* <br />A20-002 <br />3" <br />A20-004 <br />4" <br />A20-006 <br />4" <br />(.065 Wall <br />thickness) <br />A20-008 <br />4" <br />*Items must be ordered <br />separately. <br />The A70 Drop Tube is used for <br />coaxial vapor recovery tight fill <br />systems and has a vapor <br />recovery efficiency rated in <br />excess of 95%. <br />The A70 tube design is <br />narrow at the top but flares out <br />to a standard tube size in the <br />middle. This "vase" like design <br />helps to decrease flow restric- <br />11' 31/2 lbs <br />12' 5 lbs. <br />12' 5 lbs. <br />14' 51/2 lbs <br />tion by actually creating a pull <br />through effect in the system. <br />The A70 Drop Tube is to be <br />used with the A96-001 Coaxial <br />Tight Fill Adapter (order <br />separately). A special 491689 <br />reducer bushing is also re- <br />quired when using the 3" A70. <br />The A70 is constructed of <br />light weight aluminum for easy <br />handling. Cut to size in the field <br />at a 45° angle for efficient flow. <br />A30-014 491689 <br />A30-014 — <br />A30-014 — <br />A30-014 — <br />Model No. Size Length Weight Adapter* Bushing* <br />A70-001 4" 12" 12 lbs. A96-001 — <br />A70-002 3" 12" 8lbs. A96-001 491689 <br />*Items must be ordered separately. <br />