Double wall
frac tank

A double wall frac tank is a steel storage tank with a second wall built around the primary tank, so a leak in the inner wall stays inside the outer wall. IRONCLAD Powered by Mersino rents a 438 BBL model for fuel, petroleum, dangerous chemicals, and other hazardous liquids that need secondary containment on the job site.

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Secondary containment built into the tank.

A double wall tank carries its own extra layer of protection, which can remove the need for a separate spill containment berm around the tank. Its heavy-gauge A36 carbon steel construction suits industrial applications at refineries, chemical plants, and oil and natural gas sites where stored liquids sit close to sensitive areas.

Our 438 BBL Steel Double Wall Frac Tank (18,396 gallons) delivers maximum security for temporary liquid storage. Its adaptable design and built-in safety features give you reliable storage tailored to your project's specific demands.

Our double wall frac tank provides:

This steel frac tank gives you high-capacity storage with a second layer of protection against leaks. It fits environmentally sensitive locations and permitted jobs that require secondary containment, and the heavy steel build is made for demanding field conditions.

Key features and specifications:

  • Capacity: Each tank holds 438 BBL (18,396 gallons) of liquid.
  • Double wall construction: A 1/4-inch A36 inner wall and 3/16-inch A36 outer wall sit on a 1/4-inch A36 plate floor with 12-inch channel floor rails.
  • Interstitial drains: Three 3/4-inch ball valves at the front and three at the rear drain the space between the walls, with two 1-inch vented plugs at the top front corners.
  • Access: A 22-inch and 36-inch combo manway on the curb side and 36-inch manways at the front and rear of the roof give crews room for inspection and tank cleaning. A ladder serves the front roof manway.
  • Valves and venting: A 4-inch drain at each end, an 8-inch pressure/vacuum (P/V) valve on the roof, and two 4-inch blind flanges on the roof control drainage and pressure.
  • Dimensions and weight: The tank is 45 feet 8 inches long, 8 feet 6 inches wide, and 8 feet 11 inches tall, with a tare weight of about 36,000 lbs.

 

Uses:


Double wall steel tanks serve operations where a leak would create a cleanup or compliance problem. These flat top tanks bring built-in containment to liquid storage across several industries.

  • Chemical storage: Hold dangerous chemicals and other hazardous liquids at chemical plants and petroleum refineries with a second wall in place.
  • Fuel storage: Use the tank as a temporary fuel tank for diesel and other petroleum products on construction and industrial sites.
  • Oil and natural gas operations: Set it up as a flowback tank for fluids from hydraulic fracturing on sites near sensitive areas where an open frac pond is not an option.
  • Sensitive and permitted sites: Help satisfy secondary containment requirements on environmentally sensitive locations without building a separate containment berm.

Why rent a double wall frac tank

Renting specialty containment equipment from Ironclad gives your team three practical advantages.

Full rental support

Ironclad manages delivery, setup, and pickup for every double wall tank. The team is available 24/7 if you need guidance while the tank is on site.

Hydrotested before each rental

Every tank is hydrotested and maintained before it goes out, so it arrives ready to hold liquid without leaks.

Spill prevention

The double wall design is built for leak and spill control. Ironclad's large fleet also means tanks can often ship from a nearby location, which cuts down on transport miles for your project.

DoubleWall

A full lineup of steel tanks and containment equipment

Ironclad operates the largest specialty containment fleet in the U.S. The steel tanks lineup includes the 438 BBL double wall tank, the open top frac tank, the closed top frac tank, and the mini frac tank, which also comes in a 170 BBL double wall build for smaller footprints. Ironclad also rents roll-off boxes, spill containment berms, and pumps to round out your storage solutions.

Tell the team what you need to store, how much, and where the tank will sit, and Ironclad will recommend the right double wall frac tank rental and send a free quote.

ironclad employee gesturing to the jobsite for two other employees