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2 in. Overfill Prevention Valve
One Year Manufacturer Warranty

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Clay & Bailey 01228-03-2400 2 in. Overfill Prevention Valve

with 4 in. x 2 in. Adaptor

Ships From Manufacturer

Select Model & Quantity:

Model # Description Price Qty
01228-03-2400 with 4 in. x 2 in. Adaptor $595.27
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Clay & Bailey - 01228-03-2400 - 2 in. Overfill Prevention Valve

Clay & Bailey introduces the solution to the problems of:

  • Restricted height GenSet Tanks with storage capacity
  • Installing an overfill Prevention Valve into a 4 in. opening
  • Preventing expensive overfilling of ASTs
  • Unreliable whistle/vent alarms

The #1228-03-2400 2 in. x 4 in. Overfill Prevention Valve have these outstanding design features:

  • 4 in. NPT (1228-03-2400 model) opening
  • Accepts pressure delivery of product
  • Provides GenSet tanks with large fuel storage capacity at shutoff height
  • Provides positive shut off of fuel
  • Retro-fits to an existing AST
  • Mechanical in operation - no user interface required
  • Compatible with fuels (Consult factory for your specific product)
  • Minimum 5 PSI operating pressure required
Typical Shut Off Heights and Capacities of Aboveground Storage Tanks

Configuration: 4 in. Opening; 5 in. high pipe nipple; single wall top of tank

AST Style AST Height Shut Off Height % Capacity
Rectangle 12 in. 10.8 in. 90%
Rectangle 14 in. 12.6 in 90%
Rectangle 16 in. 14.4 in 90%
Rectangle 24 in. 22.8 in. 95%
Rectangle 30 in. 28.6 in. 95%
Rectangle 36 in. 34.2 in. 95%


Configuration: 4 in. Opening; 6 in. high pipe nipple; single wall top of tank

AST StyleAST HeightShut Off Height% Capacity
Rectangle12 in.11.4 in.95%
Rectangle14 in.13.3 in.95%
Rectangle16 in.15.2 in.95%


Configuration: 4 in. Opening; 5 in. high pipe nipple; single wall top of tank

AST StyleAST HeightShut Off Height% Capacity
Round12 in.11 in.90%
Round14 in.12 in.90%
Round16 in.14 in.90%
Round24 in.23 in.95%
Round30 in.27 in.95%
Round36 in.33 in.95%
Important Information for the Filling Operation
  1. Always use a liquid tight connection for filling an AST
  2. Product surge/wave action may occur during filling of an AST
  3. Always consult the factory for installation configurations

The #T-200 is designed for use with gasoline, diesel, #2 heating oil and other lightweight liquids. Always consult the factory for approval to use these overfill prevention valves in any other type of product.