Underground TanksSingle-wall in Steel

Underground Tanks
Single-wall in Steel

At Citergaz we manufacture products for various business areas. We have in this specific segment the know-how for the idealization, projection and production of underground tanks for fuels with signle walls in steel.

Our experience, along with excellent qualified workers, as well as knowledge acquired over the years, allows us to operate from the chemical industry to the food industry, including the extractive industry, among others. We are a company with eyes on the world, we try to increasingly have our products spread all over the globe, so we like to be able to affirm that we have the real capacity to produce for any part of the national or international territory.

For detailed information read more below or please consult the product’s technical sheet (Pdf.)

Underground Tanks

For fuels with Single-wall in Steel

Manufacturing Standards

  • Tanks manufactured in accordance with European Standard EN12285-1;
  • Single wall in carbon steel grade S235JR according to European Standard EN10025;
  • MRC type bottoms in carbon steel of grade S235JR according to the European Standard EN10025;
  • Steel grit to grade SA 2 ½” according to ISO 8501-1;

Materials and Procedures

  • Carbon steel wall;
  • Carbon steel bottoms;
  • Submerged Arc Welding (S.A.W.) where possible, and/or semiautomatic (M.I.G./M.A.G.) In the remaining locations;

Standard Equipment>

  • Manhole with cap and respective pricks;
  • Graduated probe ruler in anodized aluminum;
  • Lifting lugs.

Surface Protection

  • Stripping by steel shot to grade SA 2 1/2 ”;
  • Internal surfaces and weldings in a natural state, clean and properly dried;
  • Application of external 2-component Endoprene® coating with factory-proven dielectric strength greater than 6000V.

Inspection and Testing

  • Leak test by hydraulic test to the inner body at 0.75 bar;
  • Dimensional control;
  • Ink thickness control;
  • Visual test of the welds.


  • Probe rod guide tube;
  • Bottom Valve(s);
  • Interior paint suitable for the fuel liquid to be contained: Diesel / Gasoline / JET / Adblue®.

Measurement Table

Parede Simples12501500170019002150190021502500250025002500250025002500300030003000
Parede Dupla12581508171019102165191021652515251525152515251525152515302030203020
Espessura da parede (mm.)
Parede interna (mm.)55566666666666777
Parede externa (mm.)33334444444444444
Parede Simples465568792n/a12181484188921432813298233733763460153807098872610353
Parede Dupla6538231192n/a1932206429873494410847815396601074088635108621338615653

* * Values valid unless typographical error and subject to change without notice.
* Note: Other capacities available on request or consultation.

For detailed information please refer to the product technical data sheet (PDF.).
For more information, please consult our sales department.

Also available models:
Underground Tanks with Double Wall in Steel/Steel (Click here)
Underground Tanks with Double Wall in Steel/HdPe (Click here)

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