Hoover Vault Tanks

Our steel Hoover Vault® tanks meet the requirements of all national fire codes for fire-rated above ground storage tanks and are labeled according to Underwriter’s Laboratories Standard 2085 “Insulated, Protected Secondary Containment”.


Vault tanks utilize patented designs with lightweight fireproofing materials, applied in the interstitial space of UL 142 double-wall tanks. These materials ensure that the inner tank is protected from the effects of fire. This design allows both the inner and the outer tanks to be pressure tested at the factory and in the field. In addition, the fireproofing materials allow liquid to migrate through to the monitoring tube, so leaks from the inner tank are detected. Rectangular vault tanks are space-saving in design.


**Available in different sizes.



Advantages of Hoover Vault® Tanks:

UL 2085 listed for insulated, protected secondary containment

  • Two-hour fire rating using lightweight concrete
  • True 360º “pressure testable” secondary containment
  • Vehicle impact protection
  • Ballistic Protection
  • Built-in leak detection tube

Meets requirements of all National Fire Codes

  • UFC Articles 52 and 79, Appendix II and Standard A-ll-F-l
  • NFPA Standards 30 and 30A
  • BOCA

CARB Certified for Stage I and II Vapor Recovery

Underwriter’s Laboratories of Canada (ULC) Listed

30-Year limited warranty

Factory installed equipment packages:

  • Motor fuel dispensing, emergency generator/fuel oil, used oil collection (others available upon request)

Standard Tank Capacities:

      • 250 to 20,000 gallons (larger sizes up to 30,000 gallons are available)

Vault Tank Options:

  • UL 142 listed double-wall inner tank, providing triple containment
  • Larger tank capacities up to 30,000 gallons
  • 3,000 PSI concrete
  • Stainless steel inner tanks
  • Dual compartments for multi-purpose use available in all capacities
  • Lifting lugs and pump mounting brackets
  • Fibervault® exterior coatings
  • Internal coatings compatible with aviation fuels and other chemicals