Overfill Protection Valves

Prevents overfills and fuel spillage when fueling underground tanks, which reduces the risk of fire, contamination, and costly clean-up. Only Universal has one moving part to eliminate any line shock. This valve is designed to shut off gradually when the fuel reaches a pre-determined level, preventing line shock during gravity drops. When there’s no line shock, there’s no stress put on the system.

• Faster Deliveries with Less Restriction
• Only One Moving Part
• Easily Retro-Fitted in Existing Tanks
• Completely Automatic Operation
• Easy Field Installation Without Breaking Ground
• Enables Manual Gauging of Tank
• No Minimum Flow Rate Required for Shut Off

• Cast Aluminum Body
• Stainless Steel Shaft
• Aluminum Internal Components
• Reinforced Closed Cell Float
• Spring Steel Pre-Trip Mechanism
• Thrust Bearing
• Teflon Washer

Prevents overfills and fuel spillage when fueling underground tanks, which reduces the risk of fire, contamination, and costly clean up. Only Universal has one moving part to eliminate any line shock. This valve is designed to shut off gradually when the fuel reaches a pre-determined level, preventing line shock during gravity drops. When there’s no line shock, there’s no stress put on the system. Testable functionality without removing the overfill valve from the riser pipe.

• Faster Deliveries with Less Restriction
• Only One Moving Part
• Easily Retro-Fitted in Existing Tanks
• Completely Automatic Operation
• Easy Field Installation Without Breaking Ground
• Enables Manual Gauging of Tank
• No Minimum Flow Rate Required for Shut Off

• Cast Aluminum Body
• Stainless Steel Shaft
• Aluminum Internal Components
• Reinforced Closed Cell Float
• Spring Steel Pre-Trip Mechanism
• Thrust Bearing
• Teflon Washer

For all AST/UST storage applications. The best overfill protection available today. No line shock and gradual shut-off to eliminate any stress on the system. 

• No Line Shock, Gradual Shut-Off Design
• No Stress on System
• No Float Hang-Up
• Prevents Overfills in Above Ground Tanks, Reducing Contamination and Costly Clean-Up
• Completely Automatic Operation
• Easily Retro-Fitted to Existing Tanks
• Shipped With Fill Adapter
• Adjustable Collar Provides Simple Installation
• Minimal Pressure Drop

• Hard Coated Aluminum Pipe Adapter
• Zinc-Plated Steel Linkage
• Reinforced Closed Cell Float

The 47-20 fits 2″ tank openings. With no minimum flow rate this valve can be used for a wide variety of applications. Only Universal Valve offers a 2″ overfill valve designed to operate with no minimum flow rate. Making this the most versatile overfill on the market. For Installation Certification info please e-mail

• No Minimum Flow Rate to Operate
• No Line Shock, Gradual Shut-Off
• No Float Hang Up
• Prevents Overfills in Tanks Reducing Contamination and Costly Clean-Up
• Completely Automatic Operations
• Easily Retrofitted to Existing Tanks
• 2″ NPT Tank Opening

• Hard Coated Aluminum
• Reinforced Closed Cell Float
• Buna Gaskets

2” overfill valve. Designed to fit your 4″ UST opening. With no minimum flow rate, this valve can be used for a wide variety of applications. For Installation Certification info please e-mail

• No Minimum Flow Rate to Operate
• No Line Shock, Gradual Shut-Off
• No Float Hang Up
• Prevents Overfills in Tanks Reducing Contamination and Costly Clean-Up
• Completely Automatic Operations
• Easily Retrofitted to Existing Tanks

• Hard Coated Aluminum
• Reinforced Closed Cell Float
• Buna Gaskets