Double Walled Tanks


Double walled tanks are designed and built to be a tank within a tank (interstitial space). This interstitial space acts as an indicator and containment of any tank failure or leaks. These tanks are easily deployed and are able to be put into service immediately as no secondary containment installation is needed.

Our standard Double Walled Tanks are all built to API 12F Codes and come in a variety of different orientations and capacities.

Available tank sizes: 50bbl, 100bbl, 200bbl, 400bbl & 750bbl

All of our stock units are standardly setup with the following:

  • External paint or external insulation
  • Flat bottomed floor or sloped bottomed floor
  • 8” 3 saddle “L” skid
  • Standard inlet, outlet and vent nozzles c/w valves and plugs.
  • 3” external VRU downcomer.
  • Sour sealed gaugeboard c/w poly float and internal guides
  • Sour sealed thief hatch
  • Access ladder
  • 2’x 4’ manway
  • Hauling pads
  • Lifting lugs
  • Heating Source: U-Tube Burner System or Catadyne Heating System


  • Internal coating
  • Extra nozzles
  • Fall arrest systems
  • Envirovault enclosure

New and used purchase pricing and rental optionals are available.

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Contact Us 780-858-2212