AST Valves

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 Retrofitted 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

Reducing fire hazards and preventing fuel spillage should a line rupture. The flow would automatically stop the syphon effect. No need to specify head settings. Everything is included to cover an operating range of 0′ to 20′.

• Automatic Shut-Off Syphon Effect
• Precision Machined Valve Seats
• Prevents Fuel Spillage
• No Need to Specify Head Settings When Ordering

• Cast Iron Body
• Buna-N Seals
• Now Available in Ductile Iron

Reducing fire hazards and fuel spillage should a line rupture. The valve opens when energized from a dispenser or pump switch.

• Zero Differential – Direct Lift
• Normally Closed
• Higher Flow than Diaphragm Valves
• Internal Pressure Relief
• No Need to Specify 120V/60 or 24DC When Ordering

Other Sizes and Materials Available. Call or Email Us for a Quote.

• Brass Body and Piston
• FKM Seals

Holds the prime in suction systems. Ultra-precise machined bronze seat and poppet for effectively holding the prime.

• Ultra Precise Machined Bronze Seat and Poppet for Effectively Holding the Prime
• Cast Iron Body that Eliminates Any Distortion of the Valve Seat While Tightening

• Zinc-Plated Cast Iron Body
• Precision Bronze Seat and Poppet