Underground Storage Tank - Tank Types

Tank Types

Underground storage tanks generally fall into four different types:

  1. Steel/aluminum tank, made by manufacturers in most states and conforming to standards set by the Steel Tank Institute.
  2. Composite overwrapped, a metal tank (aluminum/steel) with filament windings like glass fiber/aramid or carbon fiber or a plastic compound around the metal cylinder for corrosion protection and to form an interstitial space.
  3. Tanks made from composite material, fiberglass/aramid or carbon fiber with a metal liner (aluminum or steel). See metal matrix composite.
  4. Composite tanks such as carbon fiber with a polymer liner (thermoplastic). See rotational molding and fibre-reinforced plastic (FRP).

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