ATB Riva Calzoni - Hydromechanical

Since more than one century ATB RIVA CALZONI SpA is dealing with design, manufacturing, installation and commissioning of Steel Penstocks and Hydromechanical Equipment for hydraulic and hydroelectric plants all over the world.
On the basis of this long experience in a continuously expanding market, ATB RIVA CALZONI SpA is recognized among the most qualified international companies for the supply, on “turn key” basis, of the following equipment:

	Steel penstocks, linings, bifurcations and manifolds
	Butterfly valves, dissipating valves and regulating valves
	Spillway and bottom outlet radial gates, fixed-wheel gates, sliding high-pressure gates, complete of operation and control equipment
	Hydraulic units and control panels, equipped with computer operated systems
	Trashracks and trashrack cleaning machines

In the last years, ATB RIVA CALZONI SpA has also acquired great experience in the field of high tensile strength materials for penstocks fabrication, in particular as far as welding procedures are concerned.

Hydroelectric and Hydraulic plants application

ATB Riva Calzoni is today among the most qualified international companies for design, fabrication, installation and commissioning of equipment for hydraulic and hydroelectric plants basing its long experience in this field.
In fact by combining the experience of the two mother companies, ATB and Riva Calzoni, it can be said that more that 90% of hydroelectric power plants installed in Italy up to the 80’s have been supplied by our company.
Since its foundation ATB has developed the growing needs of Italian industrialization and becoming the leading fabricator in the supply of high pressure pipes for penstocks applications

The design of bended penstocks externally reinforced with hot fitted forged rings has constituted for years a patent of ATB that has produced with this system pipes able to resist the higher pressure using relatively thin plates easy to be welded and installed in field all over the world. As example could be considered the penstock in the plant of ENEL-San Fiorano with a water head of 1.418 meters and a diameter of 2.150 mm.
In the last years, the company has developed also the welding of high strength quenched and tempered steels that can be welded in field with considerable saving in the thickness, compared with the traditional plain carbon pipe works.
For reference, the company has completed the fabrication of pipes for the Cleuson Dixence plant in Switzerland made by STE 890, 3m diameter, thickness up to 80 mm, total weight 3.000 ton using a special welding procedure.

Riva Calzoni designed the first hydraulic turbine in 1867 and starting from the beginning of the 20th century developed other complementary applications that have made them well known all over the world.
In the field of mechanical equipments for hydroelectric and hydraulic plants, both the companies developed their know-how in the design of valves and gates covering all types and overall sizes.
Furthermore the development of the more valuable oleo-dynamic control mechanism extensively employed in the control of large radial gates as an alternative to the electromechanical hoists has been promoted worldwide.
The combined track records of the two companies, allow us to cover the production of any kind of hydromechanical equipment
Recently the company has also implemented design and construction of mini-hydro power plants on turn-key basis.

more information

hydro@atbrivacalzoni.com

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