Vertical steel tanks

Types of tanks for vertical steel VST
The choice of the type of cylindrical tank can be made at the stage of its designing depending on the stored product, the characteristics of the enterprise’s process and the characteristics of the site where it will be installed.There are 4 main types of vertical cylindrical tanks:

  • VST - vertical steel tank with a stationary roof without a pontoon.
  • VSTP - vertical steel tank with a fixed roof and a pontoon
  • VSTFR - vertical steel tank with a floating roof.
  • Tanks with a protective wall ("glass in a glass").


Products stored in vertical cylindrical tanks

  • VST - vertical steel tank with a stationary roof without a pontoon.
    They are used to store products with relatively low volatility (with a saturated vapor pressure not more than 26.6 kPa) and an ignition temperature more than 610С. Most often, fuel oil, diesel fuel, household kerosene, bitumen, tar, oils (including table ones) and water are stored in such cylindrical tanks. Furthermore? steel vertical cylindrical tanks with a fixed roof without a pontoon can be used to store more volatile (from DNP up to 93.3 kPa) and easily flammable products. In such cases, the reservoir of the VST is equipped with a gas piping or light trapping unit.
  • VSTP - vertical cylindrical tanks with a fixed roof and a pontoon.
    Used to store products with a saturated vapor pressure in the range of 26.6 - 93.3 kPa and an ignition temperature of less than 610С. there are often e oil, gasoline, kerosene, and jet fuel that stored in them.The pontoon is a rigid, gas-tight floating disk-shaped coating placed on the product mirror inside a cylindrical tank so that at least 90% of its area is covered. The annular gap between the pontoon and the tank wall is sealed with a special sealing valve.The pontoon serves to reduce the rate of saturation of the gas-air space from the vertical tank with the vapors of the stored product.
  • VSTFR - vertical steel tank with a floating roof.This tank design involves the usage of a roof located on the surface of the stored product with full contact. The buoyancy effect of the roof is achieved with the sealed compartments or boxes.In an empty vertical cylindrical tank the roof is located on special supports set on the bottom. The exception for the rotation of the tank floating roof is achieved by using guide pipes.The disadvantage of a floating roof is the possibility of the stored product contamination because of the precipitation. There are also cases when the roof sealing shutter freezes to the wall. The advantages of this roof design are in reducing product losses from evaporation.
  • Tanks with a protective wall ("glass in a glass").This design of the vertical tank is used at production sites where there is no possibility for a device to embank into the tank battery. Also, cylindrical tanks with a protective wall are built near water bodies and residential settlements to ensure the environment and the population safety.The protective wall is set for preventing of the product spillage during unsealing of the working tank.


Along with vertical tanks, the plant produces horizontal tanks and underground tanks.
Storage of oil and oil products (gasoline, diesel fuel, kerosene, fuel oil, bitumen), industrial alcohols, ammonia water, liquefied gases, sugar syrups and other food liquids, and are also used as fire vertical water tanks and fuel storage tanks.
What is the feature of vertical steel tanks?

  • The most affordable type of oil storage
  • With surface and underground installation they occupy a smaller area
  • Withstand the highest loads and are adapted to any weather conditions
  • A wide range of available volumes and the individual orders


Applications

  • Oil and gas industry
  • Chemical industry
  • Food industry
  • Energy industry 
  • Agriculture
  • Transportation
  • Fire stations
  • Construction