A1100 Coaxial Overfill Prevention Systems

Overfill Prevention Valves/Assemblies - A1100 Guardian Coaxial Overfill Prevention System

Emco A1100 coaxial assemblies are factory welded; bottom tube screws to top tube/valve assembly. The assemblies are vapor tight, meet the EPA 40 CFR Part 63 requirements and will pass the Pressure Decay Test (CARB TP201). All standard A1100 variants are acceptable for use with up to E85 ethanol blend gasoline and B100 biodiesel blends. Emco "E" variant OPV's are recommended when working with high percentage ethanol (E85) or biodiesel (B100) fuels.

A1100 Coaxial

A1100 Coaxial

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A1100 Coaxial
Guardian Coaxial Overfill Prevention System

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A1100 Coaxial


Model No. Description Nominal Tank Dia. Max. Burial Depth Upper Tube Length A Lower Tube Length B Max. Overall Length C E85 Lbs.
A1100-065S* Coaxial Screw Together Non-EPA CFR 40 8 ft. 5.6 ft. 65" 82" 162" 21.9
A1100-066S* Coaxial Screw Together Non-EPA CFR 40 10 ft. 5.5 ft. 65" 94" 174" 24.7
A1100-067S* Coaxial Screw Together Non-EPA CFR 40 12 ft. 5.3 ft. 65" 120" 200" 22.5
A1100-085S** Coaxial Self-Sealing Screw Together 8 ft. 5.4 ft. 65" 82" 162" 23.0
A1100-086S** Coaxial Self-Sealing Screw Together 10 ft. 5.3 ft. 65" 94" 174" 26.3
A1100-087E** Coaxial Self-Sealing Screw Together E85 12 ft. 5.1 ft. 65" 120" 200" ✔ 28.0
A1100-087S** Coaxial Self-Sealing Screw Together 12 ft. 5.1 ft. 65" 120" 200" 28.0
Model No.Nominal Tank Dia.Max. Burial DepthUpper Tube Length ALower Tube Length BMax. Overall Length CE85

 

The A1100 Overfill Prevention Valve is not recommended for tanks under 6.5’ in diameter. Custom lengths available. Contact Customer Service at 800-234-4394 for ordering information.
Self-sealing variants are available with a 95” top tube. To order, add an “L” to the end of the variant number.
Maximum burial depth assumes 95% shut-off and 6” clearance between the top of drop tube and inside bottom of containment manhole lid.
*The A1100-06x series are non-poppeted and will not pass the pressure decay test. The -06X series must be used with the Emco A0096-001 Fill Adapter.
**Add a "P" to the end of the variant number to include an A0097-005 Fill Cap and A0089-001 Fill Adapter.