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4 inch 71SO Series CARB EVR Certified Vaportight OPV Overfill Prevention Valve For Up To 12 Foot Diameter Tank With 10 Foot Burial
Item No. 71SO-420C
The OPW 71SO Overfill Prevention Valve is a 2-Point Shut-off Valve designed to prevent the overfill of Underground Storage Tanks by providing a positive shut-off of product delivery. When the liquid level rises to about 95 Percent of tank capacity, the valve automatically slows flow. If the delivery is not stopped and liquid rises to about 98 Percent of tank capacity, the valve closes completely and liquid cannot flow.
2 Inch NPT x 50 Inch Tank Depth Type H Therma Liquid Level Gauge
Item No. H-2-50
Top-mounted liquid level sight gauge with 2-piece bushing that allows precise control of the swing arm when space is restricted.
2 Inch NPT x 50 Inch Depth Type K Interstitial Leak Gauge
Item No. K-2-50
Top-mounted vertical type leak monitor designed to detect leaks in the annular/interstitial space of a doublewall aboveground containment tank.
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