The production of Granziero S.p.a. focuses mainly on the construction of pressure vessels, process columns, process reactors, boilers & heat exchangers for oil, petrochemical, oil & gas plants.

The company’s activity started in 1974 and was dedicated to the construction of pressure and atmospheric devices for cleaning and drinking water and over the years has been oriented, in fact, in the world of oil.

The construction of numerous columns, fractioners, vacuum columns and atmospheric towers led Granziero S.p.a. to be a reference supplier for the main EPC Contractors in the world.

Granziero S.p.a. also operates within the framework of the GTL (Gas To Liquids) plants, producing stainless steel and cladded equipment, in strict accordance with the most restrictive international codes of reference for design and production.

Thanks to the collaboration with Emtrol-Buell Technologies U.K., started in 1978, Granziero S.p.a. is the reference manufacturer for regenerator cyclones and reactors as well as high-pressure cyclones and oxygen reactors for FCC European and Middle East.

The investments made in recent years have made possible an increase in production of high thickness containers in carbon steel, low alloy steel, stainless steel and cladded steel, reaching a maximum calendaring capacity, cold, up to 180 mm for three meters in height.

In the cladding field, Granziero S.p.a. has invested with commitment both in the technological front and in research and development, being able to carry out weld overlays with different procedures such as:

GTAW hot wire;
Submerged arc wire welding;
Submergerd arc strip welding;
Electro-slag

Weld overlays performed to date have seen the use of stainless steels, such as:

AISI 304 & 304L
AISI 316 & 316L
AISI 317
AISI 321
AISI 347
AISI 410S
AISI 904L
Inconel 600
Inconel 800

Following the links below you can view some images of equipment built, divided by type, in recent years.

PRESSURE VESSELS
PRESSURE VESSELS

For refinery and petrochemical plants.

COLUMNS
COLUMNS

For refinery and petrochemical plants.

PROCESS REACTORS
PROCESS REACTORS

For refinery and petrochemical plants.

HEAT EXCHANGERS
HEAT EXCHANGERS

For refinery and petrochemical plants.

BOILERS
BOILERS

For refinery and petrochemical plants.

HEATERS & REFORMERS
HEATERS & REFORMERS

For Refineries and Petrolchemical Plants.

REACTOR & REGENERATOR CYCLONES
REACTOR & REGENERATOR CYCLONES

For conditioning Refinery fumes.