Laserfiche WebLink
r <br /> IMPORTANT: OPW products should be used in compliance with applicable federal, <br /> state,provincial, and local laws and regulations. Product selection should be based on <br /> physical specifications and limitations and compatibility with the environment and <br /> materials to be handled. OPW MAKES NO WARRANTY OF FITNESS FOR A <br /> PARTICULAR USE.All illustrations and specifications in this literature are based on the <br /> latest product information available at the time of publication. OPW reserves the right to <br /> make changes at any time in prices,materials, specifications and models and to <br /> discontinue models without notice or obligation. <br /> 61SO Series Overfill Prevention Valves(61SO-3000 61SO-1000 61SO-100C 61SO- <br /> 4000 61SO-4010 61SO 40OC-EVR 61SO-41OC-EVR 61SO 42OC-EVR 61JSK-4400- <br /> EVR 61SO 490161SO 490C 61SOM412161SOM412C-EVR 61SOR 61SO4BYT <br /> 61SOC4BYT 61JSK-4RMT 61SOC400161SOC401161SOP-4002 61SOP-4012 <br /> 61SOCM-4000 61SOR-4000 61SORM-4000) <br /> The OPW 61 SO Overfill Prevention Valve is designed to prevent the overfill of <br /> underground storage tanks by providing a positive shut-off of product delivery. The shut- <br /> off valve is an integral part of the drop tube used for gravity filling. The OPW 61 SO <br /> allows easy installation(without breaking concrete) and requires no special manholes. <br /> The OPW 61 SO is a two-stage shut-off valve. When the liquid level rises to about 95% <br /> of tank capacity,the valve mechanism is released, closing automatically with the flow. <br /> This reduces the flow rate to approximately 5 gpm through a bypass valve. The operator <br /> may then stop the filling process and disconnect and drain the delivery hose. As long as <br /> the liquid exceeds the 95%level, the valve will close automatically each time delivery is <br /> attempted. <br /> If the delivery is not stovt)ed and the liquid rises to about 98%of tank capacity,the <br />