- FRT (floating roof tanks)
Our experience covers single pontoon and double deck floating roofs with capacity up to 160.000 m3.
roofs are erected on the tank bottom and air- raised to the high level supports elevation.

- CRT (cone roof tank)
Our experience covers crt up to 90.000 m3 (column supported) and up to 50.000 m3 (self supporting structure).
In special cases we have erected a self-supporting structure at the tank bottom and then air raised the complete roof to its final position.

- Roof mechanical lifting with GRIP HOISTs   
As alternative to roof air raising we had developed a safe and efficient means of raising the roofs into place
without the need for any cranes, jacks or extensive scaffoldig. this method has been used succesfully for numerous
roof installations and dismatling.

- Low temperature tank (to -50°C) and cryogenic tank (to -196°C)
Our experience covers single and double wall tanks with suspended deck for low temperature storage for
ammonia, butane, propane, propylene, etc and double wall suspended deck for cryogenic tank
(9% nickel, aluminium or stailess steel inner tank) for ethylene, lng, liquid oxygen and liquid nitrogen (capacity up 110.000 m3).
Dome roof and suspended deck are erected at tank bottom and air raised to final position.
we have experience also with construction by 'jacking-up' system.

- Spheres and spheroids for LPG
Our experience covers sphere site construction up to 7.500 m3.

- Transfer by floating of storage tank
Frequently the storage tanks have been installed so that they do not make the most of the available areas or sometimes
refinery plant renewal requires transfer of flat bottom cylindrical storage tanks from their foundation to place them on some other location in the vicinity.

If the conditions of the area allow it, the transfer takes place by floating in accordance with our know-how.
Our services consist in:
1. site and tank inspection (inside and outside)
2. feasibility study
3. engineering
4. execution of the work (tank and dock preparation then final transfer)

- Double head automatic welding machine for storage tank circumferential joints
The machine is used for thickness up 40 mm and a minimum radius of 8 m. it consists basically of a travelling trolley, an articulated telescopic structure and two cages for the operators.A recirculating flux system provides constant protection of the welding pool.The complete machine is installed in a protective frame for transport in container.Specific detailed information and brochure are available upon request.

- Erection equipment and vacuum box