Overfill Valves
Underground Storage Tank Equipment

Underground Storage Tank Equipment That Delivers Dependable, Compliant Containment

Source North America Corporation offers a complete line of underground storage tank equipment and accessories that are engineered to deliver the integrity and dependability fuel sites need in order to meet today's strict and growing environmental compliance regulations.

From spill containers, manholes and containment sumps to submersible pumps, motors and leak detection devices, our comprehensive line of supporting UST equipment works hard to prevent costly environmental hazards. With a large selection of valves, drop tubes, vents, caps and adaptors, Source has underground storage tank accessories that meet the needs of almost any site configuration. From the most trusted brands in the industry, our durable UST equipment is built to deliver long-term, reliable performance.

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4 Inch Overfill Prevention Valve Up To 10 Foot Diameter Tank 10 Foot Burial (Non Vapor Tight)

4 Inch Overfill Prevention Valve Up To 10 Foot Diameter Tank 10 Foot Burial (Non Vapor Tight)

  • The OPW 71SO is a vapor-tight two-stage shut off valves. 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 to 5GPM.

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4 Inch Overfill Prevention Valve Up To 10 Foot Diameter Tank 10 Foot Burial (Vapor Tight)

4 Inch Overfill Prevention Valve Up To 10 Foot Diameter Tank 10 Foot Burial (Vapor Tight)

  • The OPW 71SO is a vapor-tight two-stage shut off valves. 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 to 5GPM.

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4 Inch Testable Vapor-Tight Overfill Prevention Valve Up To 10 Foot Diameter Tank 10 Foot Burial

4 Inch Testable Vapor-Tight Overfill Prevention Valve Up To 10 Foot Diameter Tank 10 Foot Burial

  • The OPW 71SO is a vapor-tight two-stage shut off valves. 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 to 5GPM.

Quick Info
4 Inch Overfill Prevention Valve Up To 12 Foot Diameter Tank 10 Foot Burial

4 Inch Overfill Prevention Valve Up To 12 Foot Diameter Tank 10 Foot Burial

The CARB-certified OPW 71SO vapor-tight Overfill Prevention Valve is designed to prevent the overfill of underground storage tanks by providing a positive shut-off of product delivery

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4 Inch Overfill Prevention Valve Up To 10 Foot Diameter Tank 10 Foot Burial Testable E85 Evr (Vapor Tight)

4 Inch Overfill Prevention Valve Up To 10 Foot Diameter Tank 10 Foot Burial Testable E85 Evr (Vapor Tight)

The CARB-certified OPW 71SO vapor-tight Overfill Prevention Valve is designed to prevent the overfill of underground storage tanks by providing a positive shut-off of product delivery

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