Vacuum Relief Valve for Fuel Storage Tanks
Valve preventing tank collapse by admitting air during vacuum conditions in underground fuel storage tanks. Functions as safety relief valve under HTS 8481.40.00.00 for petroleum storage vats.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If primarily regulating positive pressure only
Standard pressure regulators without vacuum relief function differently.
If other tank appurtenances not qualifying as valves
Tank fittings not meeting valve definition classify as other tank components.
Not sure which classification is right?
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Import Tips & Compliance
• EPA SPCC plan documentation; UL-67 listing for fuel tanks; vacuum rating certification required
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