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OPW : Products: Category > Page 1 of 2 Hone Contarl Us Carders l: nks Login Cover Operating C:ornr,,,'nies COMPA YPROHLE PRODUCTS FIND DISTRIOUTORS NEWS EVENTS . SUPPUER PORTAL FIAPLOYEEEMAIL a x> Product Categories Search by Model umber: rose by Categories: Model Number: category: ' Select Category Description: IMPORTANT: OPW products should be used in compliance with applicable federal, state, provincial, and Local caws and regulations. Product selection should he based on physical specifications and limitations and compatibility with the environment arid materials to be handled. OPW MAKES NO WARRANTY OF FITNESS FOR A PARTICULAR USE. All illustration: and specifications in this literature are based on the latest product information available at the time of publication. OPW reserves the right to make changes at any time in prices, materials, specifications and models and to discontinue rnodels without notice or obligation. OPW > OPWEnvironmental > Elndergrokind_. tory ..Tarr _.Equip ent > Overfill Prevention Equipment > 61SO Overfill Prevention Valves 61SO Overfill Prevention Valves The OPW 61SO Overfill Prevention Valve is designed to prevent the overfill of underground storage tanks by providing a positive shut-off of product: delivery. The shUt-riff valve is an integral part of the drop tube used for gravity filling. The OPW 6:€.SO allows easy installation (without breaking concrete) and requires no special manholes. The OPW 61SO is a two-stage shut-off valve. When the liquid level rises to about 954%0 of tank capacity, the valve mechanism is released, ,losing automatically with the flow. This reduces the flow rate to approximately 5 gp€n through a bypass valve. The operator may then strop the filling process and disconnect and drain the delivery hose. As long as the liquid exceeds the 95% level, the valve will close automatically each time delivery is attempted. If the delivery is not stopped and the liquid rises to about 98% of tank capacity, the bypass valve closes completely. No additional liquid can flow into the tank until the level drops below a reset point. Models of the 61SO are available to rneet virtually any UST application including two-point, coaxial, poppeted coaxial and rernote fill. The 61SO-3000 provides two-point overfill protection for 3" riser pipes, and the. 61SO-1000 and 61SO-1000: (CAR.B) feature a grooved -tube design for use with tank gauging systems. Methanol and CARB (vapor -tight) approved models are also available. The OPW 61SO is approved by the New York City Fire Department. (Approval 44902) Important In order to prevent product spillage from the Underground Storage Tank (UST), properly maintained delivery equipment and a proper connection at the tight -fill adaptor are essential. Delivery personnel should be managed and trained to inspect delivery elbows and hoses for damaged and missing parts. They should always make certain there is a positive connection between the adaptor and elbow. If delivery equipment is not properly maintained, or the elbow is not securely coupled to the adaptor, a serious spill may result when the OPW 61SO closes, causing a hazard and environmental contamination. NOTE: The DPW 61SO is designed for use on tight -fill gravity drop applications only. Cao not use for pressure fill applications. 61SO Series Overfill Prevention Valves The DPW 6.1.SO Overfill Prevention Valve is designed to prevent the overfill of underground storage tanks by providing a positive shut off of product delivery. The shut off valve is an integral part of the drop tube used for gravity filling. The DPW 61SO allows easy installation (without breaking concrete) and requires no special manholes. The OPW 61SO is a two stage shut: off valve. When the liquid level rises to about 95% of tank capacity, the valve mechanism is released, closing automatically with the flow, This reduces the flow rate to approximately 5 gpm through a bypass valve. The operator, may then stop the filling process and disconnect and drain the delivery hose. As long as the liquid exceeds the 95% level, the valve will close http://www.opw-fc.conVproduct_category.aspx?cid=56 2/1/2008