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Float Valve Extractors C Simple ball float valves have long the A75-002 float vent valve. The been used to significantly reduce extractor fitting mounts on the the risk of storage tank overfills. underground tank flange, and As the liquid level in the tank rises, secures and positions the float the ball float is forced to seat itself vent valve in the tank. A 2" port on in the vent line. This shuts off vapor the fitting accommodates the tank return to the tanker, which slows vent line. the gravity flow of product out of The A79-002, -003 and -004 float the tanker, retarding the rate of vent valve extractor assemblies product drop. each consist of a heavy-duty cast Emco Wheaton float valves are iron extractor fitting body, an designed to close at approximately extractor cage, and the A75 float 95% of tank capacity. When the vent valve. Like the A79-001 float valve is fully closed, flow rate assembly, the A79-002, -003, and from the delivery vehicle is reduced -004 mount directly on the by 99%. underground tank flange and can A79-001 A79-002 This gives the driver adequate be used where underground vent time to realize that flow has been piping of similar products may be shut down, and to close his tank manifolded. valves before an overfill occurs. The A560-002 extractor wrench is Should an overfill occur however, required to remove the float valve 7" a bleed hole provides pressure 3'/z,�Ffrom each of these extractor relief for com ressed air in the tank. -- p assemblies. 3'�1 Q — ,� Emco Wheaton carries two styles of float valve extractors. The Ball float valves are available A79-001 consists of a heavy-duty Sartaratelnumber A75.to Emco Wheaton cast iron body galvanized for rust P protection, an extractor cage, and 18" l Materials = --f Body: Cast Iron, Galvanized Extractor Cage: Stainless Steel Tube: Aluminum Ball Float: Stainless Steel A79-001 Model No. Weight Bleed Hole Manifold Port A79-002 & A79-003 33/8" A79-001 183/4 lbs. '/6"" None �A79-004 & A79-005 5%- A79-006 183/4 lbs. '/,s None 7" A79-002 17 lbs. X1/9 3" Female NPT A79-003 17 lbs. *'/1 s" 3" Female NPT A79-004 18 lbs. 1/8" 2" Female NPT —, - - A79-005 18 lbs. '/s"" 2" Female NPT 3'/,8" All of the above A79 models feature: 2" Female NPT Vent Port, 4" Male NPT Tank Connection, 4" Male NPT Riser Connection. 18" 'Also available without bleed hole to further reduce fuel seepage into the vapor return line from the nozzle. Consult factory for details. r A79-002 6