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Horizontal steel tanks production

Multicorporate enterprise “RussianTankWorks” produces horizontal steel tanks, underground drain containers on the modern production site, equipped by the facilities for metal-roll preparation and welding outfit of the world’s leading producers.

The advantages of our tanks

The advantages of our tanksIn the course of production of horizontal tanks we are oriented on the most demanding and intelligent customers. Three basic goals are set for our production to make the work effective: competitive price of the finished tank, ideal and stable quality, the shortest period of production.

These goals are achieved due to well-reasoned technology of metal containers production and the modern welding equipment.

Automatic and auto-manual welding equipment Lincoln Electric is used in our production. The welding facilities of such level enable us to provide an excellent quality of welding joints along with the decrease in the time of production and labor expenses.

The welding facility of our production line has a number of advantages:

  • The frameworks of sheet metal-roll, among which are the horizontal tanks, are assembled with the use of automatic welding, which is featured by avoiding contraction, ensuring throat-welding without burn-through and a sufficient decrease of the post-welding procedures period.
  • Modern welding equipment provides the managed penetration and heat input.
  • Low sputter level and the minimal welding blow-out are achieved due to the automatic adjustment of the welding current and optimization of the metal transfer process.
  • High-speed welding does not affect the quality and the view of the welding joint.
  • Regulated background and the trailing edge enable to set the exact volume of heat input, to decrease the probability of burn-through as well as to ensure the needed penetration.
  • Conformance to the requirements of IEC974-1, ROHS and CE standards.

Photo equipment

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Technological process of metal horizontal tanks production

  • Technological process of metal horizontal tanks productionnitial check (incoming test);
  • Metal preparation;
  • Manufacturing of the wall;
  • Manufacturing of the endwalls, manway plates and pipe junctions;
  • Backing holders and maintenance shaft production;
  • Tank assembling;
  • Corrosion preventive procedures

To ensure the effective use of the horizontal tank, the pre-production stage demands special attention to the choice of steel type. As a rule, steel of st3sp, 09G2S is used in our production, along with stainless steel types AISI304 and AISI321 of 4 to 10 mm thickness.

The tank wall is a set of several shells, made of roll or sheet steel (1500 mm wide).The firmness of the framework is provided by the supportive (with triangle diaphragm plate) and midpoint (interim) stiffening-rings. The rigidity of the tank wall in the course of transportation, re-load and installation is ensured by the horizontal stiffening-rings made of standard section and toe-welded to the wall. Such scheme provides the rigidity of walls, exposed to vacuum and wind influence.

Technological process of metal horizontal tanks productionThe bottom of the horizontal tank is flat, manufactured with the excessive pressure up to 40 kPa. The pressure level from 40 kPa to 70 kPa requires the conical shaped bottoms. To ensure the framework firmness flat bottoms are often reinforced by the stiffening plates.

The framework of the ground-level horizontal tanks includes two supporting structures: saddle shaped or poles. The angle of contact of the saddle-shaped structure is 60-120°.

The framework of underground horizontal tanks is provided with the maintenance shafts, enabling the access of the staff to the tank dome and technological pipelines.

The quality standard for the horizontal tanks

The welding procedures were originally worked out and tested by our WeldingTo ensure quality of the welding joints our factory applies a complex of measures.

The quality standard for the horizontal tanksLaboratory. They were taken as the basis for the Welding Operating Conditions, which determine the requirements for welding joints and the order of technological operations as regards the types and the thicknesses of metal roll, type of the weld, steel edge preparation and other parameters. Keeping the Welding Operating Conditions provides conformance to the requirements of the State Standards (GOST).

Our Welding Operating Conditions represent the basic operation document, determining the work of welders and the quality control of the joints.

Correspondence to the Welding Operating Conditions is controlled by the General Welding Operator Service and Quality Control Department.

The quality standard for the horizontal tanksAs a result of thorough work through and strict execution of the Welding Operating Conditions we were able to provide the highest quality of the welding joints. It is considered to be one of the main advantages of the horizontal tanks, produced by the company. It often happens that imperfections of welding technology or/and its violations cause a range of serious problems, as:

  • Non-conformance of the welds’ crown to the requirements of the State Standard GOST-31385-2008. This means that the smooth connection of the weld and the main metal is not provided.
  • Main metal undercuts and cold laps appear.
  • Defects in welding joints appear: cracks, ripples, gas pockets and their chains, burn-through and blowholes.

As a result of these, full strength of the welding joint does not meet the standards and may cause welding deformations.


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Horizontal tanks documents

As a tank-producer our company guarantees the full order in technological and authorization documents for all types of products. This makes the approval and registration procedures easier.