What we do

Since 1947 Maraldi has been providing state of the art Pressure Storage Spheres and Low-temperature and Cryogenic (Storage) Tanks for ammonia, oxygen, nitrogen, ethylene, ethane, propane and other hydrocarbons.

Cryogenic Tanks

Made to store gases in liquid phase at ambient pressure, low-temperature and cryogenic tanks must ensure constant low temperatures to keep evaporation of the product to a minimum.

There are a number of important factors to consider in their design, including use of proper thermal insulation techniques, knowledge of materials and their behavior under thermal gradient and application of the best control systems.

Optimal tank operation and performance depend on all these elements.

From this point of view, Maraldi is able to ensure design experience and precision in the construction phase of single or double-walled tanks for containing ammonia, oxygen, nitrogen, ethylene, ethane, propane and other hydrocarbons.

The largest storage tank in cryogenic service was accomplished in the year 2000 for Sonatrach in Algeria with a capacity of 70,000 m3 and the lowest design temperature was achieved in the year 1996 for Air Liquide in a nitrogen tank with a design temperature of – 196°C.

Pressure Storage Spheres

Constructing 20-25 m diameter pressure storage spheres requires extensive skills and the best technologies for millimetric precision. In addition to extremely precise design and planning, careful attention and experience in the construction phase is needed: forming the caps and petals requires observance of strict tolerances. Maraldi has been building spheres since 1962 and with over 300 past references in this field can guarantee structures that in addition to being easy to assemble, are extremely safe in service.

Our projects in the world