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FIG 9095AA

Overfill Prevention Valve - AA Series (2”)

The 9095AA 2” series overfill prevention valve is designed to prevent overfilling storage tanks by providing a positive shut-off during a pressurized fill.

*For use on clean liquids only.

Product Features

Standard Features

Installs directly onto a 4 inch riser or top mounted spill container

Minimum shut-off height is 2” from the tank top

2.35” of float height adjustment

Drop tube adaptor accepts 2” drop fill tubes (Morrison 419)

Full flow to shut-off point, cushioned closure eliminates shock

Integral pressure relief

Integral anti-siphon function

Optional test mechanism

Construction Details

  • Direct fill adaptor: passivated aluminum
  • Remote adaptor: ductile iron, powder coated
  • Shaft, linkage and hardware: stainless steel
  • Lower pipe nipple: e-coated steel
  • Drop tube adaptor: passivated aluminum
  • Body: passivated aluminum

Operational Criteria

Minimum 5 PSI flow requirements

Maximum operating pressure is 100 PSI

Maximum viscosity of 3000 centistokes

A tight fill connection is required for the valve to operate

The estimated flow rate is 230 GPM at 10 PSI pressure drop (See flow curve)

Code Compliance

ULC-S661-10 listed; NFPA 30, 30A; UFC; IFC; PEI /RP200; PEI/RP 600; and Florida DEP EQ-851. California EVR models available.

Product Ordering Instructions

Fig Suffix Size Description Tank Opening Weight
9095AA 0200 AV 2” Valve with 2” male quick disconnect x 4” female threads 4” 14.1



AST Overfill Prevention Valve w/2” Female Threaded x 4” Female Threaded Connection, CARB EVR Approved

Adaptor 2” male thread to 2” raised face flange; for use with 9095AA3200AVEVR



9095AA 4000 AV 2” Valve with 3” male quick disconnect x 4” female threads 4” 16.8
9095AA 4200AVEVR 2” Valve with 3” female threads x 4” female threads, CARB EVR Approved 4” 21.25
9095AA 5200AVEVR 2” AST Overfill Prevention Valve w/ 2” Dry Disconnect Adaptor x 4” Female Threads, CARB EVR Approved 4” 21.25
9095AA 9200AVEVR 2” AST Overfill Prevention Valve, Less Adaptor, CARB EVR Approved 4” 14.1
BSP Threaded Models
9095B 0200 AV 2” BSP AST Overfill Prevention Valve (Aluminum body) w/ 2” Male Quick Disconnect x 4” Female British Threads 14.1
9095B 0300 AV 3” BSP AST Overfill Prevention Valve (Aluminum body) w/ 3” Male Quick Disconnect x 6” Female British Threads 29