Design Tanks

Fiberglass & Poly Tanks

Design Tanks has been producing fiberglass-reinforced plastic (FRP) tanks for over 50 years. Their headquarters is located in Sioux Falls, SD and they have an additional facility, dedicated solely to the production of 12ft diameter tanks in Belle Fourche, SD. In comparison to steel storage tanks, fiberglass is roughly 75% lighter than steel which allows for easier installation.

Fiberglass tanks have an average life expectancy of 20-30 years. Compare that to the average life expectancy of poly tanks (10–15 years) and you can see the added benefits of fiberglass tanks. From energy storage to fertilizer storage Dultmeier Sales can help you find a solution.

Fiberglass vs Poly Tanks:
  • Fiberglass tanks offers greater longevity – roughly twice the lifespan of poly.
  • Polyethylene tanks can potentially swell three to four percent over its lifespan; a fiberglass tank has an extremely low co-efficient of expansion.
  • Manways can easily be installed on fiberglass tanks as this does not negatively affect the integrity of the tank structure
  • An internal slope bottom can be installed in fiberglass tanks which will allow for complete drain out.
  • There is design freedom with fiberglass tanks that allows one to install accessories anywhere on the tank vs. flat areas only on polyethylene tanks.
  • Hold-down systems can easily be supplied on fiberglass tanks to allow for anchoring to protect against wind shear and seismic activity.

Please call us at 1-888-677-5054 for pricing or further information.

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