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71 SO Overfill PreventioRalve • <br /> Page 1 of 8 <br /> V P W LEADING THE WAY SINCE 1892 <br /> R E T A I L F U E L I N G <br /> ■ oaVE6 camwwr <br /> 71 SO Overfill Prevention Valve <br /> The CARB-certified OPW 7150 vapor-tight Overfill Prevention Valve is <br /> designed to prevent the overfill of underground storage tanks by j <br /> providing a positive shut-off of product delivery.The shut-off valve is <br /> an integral part of the drop tube used for gravity filling. The OPW <br /> 7150 allows easy installation (without breaking concrete)and <br /> requires no special manholes. <br /> The OPW 71 SO is a vapor-tight two-stage shut-off valve. When the <br /> liquid level rises to about 95%of tank capacity,the valve mechanism <br /> is released, closing automatically with the flow.This reduces the flow 7150 <br /> rate to approximately 5 gpm through a bypass valve. The operator <br /> may then stop the filling process and disconnect and drain the <br /> delivery hose. As long as the liquid exceeds the 95%level,the valve <br /> will close automatically each time delivery is attempted. <br /> If the delivery is not stopped and the liquid rises to about 98%of <br /> tank capacity,the bypass valve closes completely. No additional <br /> liquid can flow into the tank until the level drops below a reset point. <br /> 71 SO Overfill Prevention Valve f/docs/libraries/aroduct- <br /> cataloa/retail-fueling/below-around/underaround- <br /> eauipmentf71S0 Overfill Prevention Valve odf? <br /> yr n=2 <br /> Features & Benefits <br /> RECEIVED <br /> Materials <br /> • Valve Body: Cast aluminum DEC 10 2015 <br /> ENVIRONMENTAL <br /> • Float: Nitrile rubber, closed cell foam wca,Tu nco8aTAAck1T <br /> http://www.opwglobal.com/products/us/retail-fueli ng-products/below-grou... 12/10/2015 <br />