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20' Tank container

iStock 000045286502Small

Description 20'
Inside Length 6.058 m
Inside Width 2.438 m
Inside Height 2.438 m
Door opening Width 0.000 m
Door opening Height 0.000 m
Volume 26,100 m³
Max. Gross Weight 24,000 kg
Tare Weight 4,190 kg
Max Payload 26,190 kg



Tank containers are used for liquid cargoes, such as:

  • Foodstuffs: fruit juices, spirits, sweet oils
  • Chemicals: hazardous materials, such as fuels, toxic substances, corrosion protection agents


Tank containers must be at least 80%% full, to prevent dangerous surging of the liquids in transit. On the other hand, they must not as a rule be over 95%% full, or there will not be sufficient ullage space for thermal expansion. The extent of thermal expansion may be calculated for each cargo on the basis of the following formula:

ΔV = Va · γ · ΔT
Ve = Va (1 + γ · ΔT)
ΔV : change in volume

Va : volume at initial temperature a

Ve : final volume at temperature e
γ : coefficient of cubic (thermal) expansion

ΔT : temperature difference in degrees kelvin

Tank containers intended for transporting foodstuffs must be labeled "Potable Liquids only".
Some hazardous materials must be transported in tank containers with no in- or outlet openings below the surface of the liquid.
Tank containers are generally designed for an operating pressure of up to 3 bar (above atmospheric). The test pressure used is 4.5 bar (above atmospheric).

If the cargo requires temperature-controlled transport, tank containers can be equipped with insulation or heating. The temperature of the cargo may be precisely controlled using temperature sensors.