Air Shut-off Valves

  • Overfill Prevention Valve for Used Oil Systems

    Product SKU: FIG FMMASO

    The ASO series of valves is used to shut-off the air supply to an AOD (Air-Operated Diaphragm) pump when the liquid level approaches full capacity.

    The ATO valve is used to turn on the air supply to an AOD pump when the liquid level approaches the full capacity.


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