API Shop Fabricated Tanks

Serving the Oil & Gas Industry Since 1976

Dixie Southern designs and custom fabricates above-ground, welded-steel storage tanks that meet the exacting standards of the American Petroleum Institute (API).
API establishes standards for the design and fabrication of welded-steel storage tanks for storing oil and other liquids. The API standard is applicable for stationary atmospheric and low-pressure petroleum storage tanks used in all sectors of the petroleum and petrochemical industry. We serve customers in the oil and gas industry, and beyond, for their custom, legal load or over-dimensional, API certified storage tanks in carbon steel and stainless steel.
Some examples of API shop fabricated tanks we design and fabricate:
  • Water treatment tanks
  • Distillation tanks
  • Flocculation tanks
  • Separator tanks
  • Petroleum storage tanks
  • Chemical storage tanks
  • Storage tanks
  • Water storage tanks
  • Sulfuric acid storage tanks
  • Condensate tanks
  • Condensate storage tanks
  • Bulk tanks
  • Caustic tanks
  • Caustic storage tanks
  • Sludge tanks
  • Diesel tanks
  • Underflow tanks
  • Amine storage tanks
  • Oily water tanks
  • Water holding tanks
  • Sulfuric acid tanks
API Shop Fabricated Tank, Steel Bulk Storage from Steel Fabricator in Florida
Dixie Southern has decades of experience designing, fabricating, assembling, and inspecting API 620 and API 650 storage tanks. At our 12-acre, 65,000 square foot manufacturing facility in West Central Florida, we have the professional designers, welders, and fabricators needed to build your custom welded API storage tanks.
API 620 Tank, API Shop Fabricated Tanks from Dixie Southern
API 620 Tanks

The design configuration of API 620 requires that the user has an elevated or flat bottom on which to set the steel tank. This type of storage tank has a single, vertical, central axis of revolution, and the tank is used for products that have high internal pressures, such as liquified natural gas and cryogenic tanks.

API Tanks and API Shop Fabricated Tanks from Dixie Southern
API 650 Tanks

The design configuration of API 650 covers tanks that support the whole bottom evenly and tanks in non-refrigerated service that have a maximum design temperature of 200 degrees F. API 650 tanks can store oil, gas, chemical, water, and biofuel and are some of the most common steel tanks in the oil industry.

Our API Tanks are designed, fabricated, and delivered to your facility worldwide.
  • Designed and fabricated to meet API 620 and API 650 standards
  • API storage tanks fabricated from carbon and stainless steel
  • Legal load, oversized, super load, custom heavy storage tanks
  • Lined internally for special applications
  • Can be used across many industrial markets

API Tank Industries Served

We serve the exacting needs of facility operators, EPC contractors, general contractors, and OEMs in oil and gas and multiple other industries.

Oil & Gas


chemical treatment


food & beverage processing


mining & minerals




power generator


water & wastewater treatment


pulp & paper


waste treatment



The Dixie Southern Process

5 Steps to Delivery of Your Custom API Tank


Our professional drafters design your API steel tank to meet API standards.


You review our API storage tank design before we procure materials and begin fabrication.


We use cutting edge design and manufacturing processes to ensure that your API tank meets specifications.


API Tanks are inspected in accordance with the appropriate API standard and the corresponding label is attached.


Your API shop fabricated tank is delivered to your facility anywhere in the continental U.S.

Recent API Tank Projects
Water Holding Tank, API Tank Project by Dixie Southern

RO Water Holding Tank

API Shop Fabricated Tank Designed by Dixie Southern, Used for Water

Raw Water Tank


Screen Underflow Tank 

API Shop Fabricated Tank, Steel Bulk Storage from Steel Fabricator in Florida

70kL Ammonium Nitrate Emulsion Tanks 

API Shop Fabricated Tank and Bulk Storage Tanks from Dixie Southern

Raw Dilute Juice Tanks


Caustic Storage Tank

API 620 Tank, API Shop Fabricated Tanks from Dixie Southern

Bulk Tank

API Tanks and API Shop Fabricated Tanks from Dixie Southern

Condensate Storage Tank

Tell us more about your project

American Welding Society Member
American Water Works Association Member
API Association Member
ASME Certification for Dixie Southern ASME Pressure Vessels and ASME Tank
UL Certification for Dixie Southern, a UL Certified Steel Fabricator