Working so that energy may cross the world

Valter Alberici and Marc Herzstein

Working so that energy may cross the world.
Working with the passion and skills of our people.
In this way even our own energy becomes strength,
safety and productivity that reaches everyone.
In this way even pipes and fittings can unite the world
and improve quality of life.

Valter Alberici and Marc Herzstein
Presidents of Allied International Group

Allied Group is a worldwide leading group in the production and distribution of fittings, flanges, pipes and related products. It comprises Allied Fitting L.P., based in the US and mainly focused on the American market, and Allied International Group, based in Italy and aimed at developing the business in Europe and other markets in the rest of the world.


Allied Group in the Americas is recognized as the industry leader for distribution of critical application PVF products throughout the Western Hemisphere.

With support from the manufacturing divisions Allied Fitting, Allied Stainless, Tectubi Raccordi, TriLad, Ezeflow, Flowline, Warren Valve and Paulsen Pipe, Allied is recognized as the most well respected source for quality PVF products worldwide.

In addition to the headquarters in Houston, Texas, Allied Group North America has eleven facilities strategically located throughout the USA and Canada. Its unsurpassed inventory of carbon and stainless PVF products enables Allied to service a wide range of industry demands.

The fundamental belief of the Group is that consistent investments in infrastructure, inventory and R&D are essential to the Allied Group North America staying on the cutting edge of technical, operational and quality control excellence.


Allied International Group is a reference point for excellence in the manufacture and distribution of fittings, piping, bends, clad products, prefabrication, flanges, forged, valves and specialties for the upstream, midstream and downstream sectors of oil & gas, thermal and nuclear power generation.

The Group was founded in 2000 by two well-known business managers in the buttwelding fittings sector, Valter Alberici and Marc Herzstein, with the aim of becoming a one-stop solution partner for their clients.

Its headquarters are in Nibbiano, Alta Val Tidone, Piacenza, Italy, from where the Group operates with the most accredited EPC companies, along the lines of the internationalization principle while still maintaining unity through its shared cultural roots.

The Group's business model is characterized by complete control of the supply chain, with integrated production, stock and distribution operations. A strong market image reinforced by genuine trust has enabled very rapid growth in all areas of the world.

Allied International Group, with its head office in Nibbiano, Alta Val Tidone, Piacenza, Italy, comprises the following 9 main companies:

Company Activity Location and facilities Products

Distribution & Stock

- head offices in Nibbiano
- warehouse in Castel San Giovanni
- total area 113,000 sq m (covered 28,000 sq m)
Elbows ½" ÷ 120"
Tees ½" ÷ 120"
Pipes ½" ÷ 120"
Caps/red. ½" ÷ 120"
Special fittings up to 120"
Special supplies


- head offices and factory in Podenzano
- factory in Calendasco
- factory in Castel San Giovanni
- total area 355,800 sq m (covered 61,800 sq m)
factory in Carbonara Scrivia
- total area 50,000 sq m (covered 27,500 sq m)
Elbows up to 120"
Tees up to 120"
Reducers up to 120"
Special fittings up to 120"
Cold bending elbows 2"Ă· 60"
Induction bending elbows 6"Ă· 60"
Manufacturing Facility:
- factory in Nibbiano
- total area 41,000 sq m (covered 13,000 sq m)
Elbows ½" ÷ 16"
Tees ½" ÷ 24"
Reducers ½" ÷ 36"
Caps/red. ½" ÷ 36"
Special fittings up to 36"


- head office and factory in Schio
- total area 30,000 sq m (covered 21,000 sq m)
Welded pipes in 4 production lines: thin wall, heavy wall, large diameters (over 28"), clad/lined


- head office and factory in Tianjin (DEDA, China)
- commercial office in Beijing
- total area 68,000 sq m (covered 35,000 sq m)
Fittings for nuclear primary
circuits, superpipe (clarinettes)
Seamless fittings up to 36"
Welded fittings up to 66"
Manufacturing Facilities:
- head offices and factory in San Rocco al Porto
- total area: 210,000 sq m - covered 61,000 sq m
Fittings up to 120"
Prefabbrication (slug catchers, manifolds, pipe spools, scraper traps)


Software development
- head offices and factory in Prezzate di Mapello
- total area 45,000 sq m - covered 15,000 sq m

- office in Genova
Large radius bends up to 60"br> Prefabrication (pressure vessels, heat exchangers)
Cladding service

SIMAS S.p.A Division

Railway automation systems

Manufacturing Facilities:
- head offices and factory in Maubeuge, France
- total area: 55,000 sq.m. - covered 25,000 sq.m.
Standard elbows up to 30"
Standard tees and reducers up to 18"
Standard caps/dishes ends up to 406.4 mm
Commercial Facilities:
- Head office in Vitrolles, France
Distribution and management of comprehensive packages (including fittings, pipes, bends, flanges, alves, gaskets, filters, prefabrication components)
Manufacturing Facilities:
- office and factory in Vitrolles, France

Engineering and piping branch of Phocéenne;
Manufacturer of a patented quick opening-closure systems
Machining operations
- office and factory in Beauvrages, France
- total area 5,700 sq m - covered 2,500 sq m
Large crowns and flanges;
Specialized in bending, welding and machining

Websites of the Group

Allied International S.R.L. – Sede legale / Registered office: Località Vascellino di Nibbiano, 29031 Alta Val Tidone (Piacenza), Italy
Capitale sociale / Paid capital € 650.000,00 i.v. – REA PC 150342 – IVA / VAT No. IT 01294450331
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