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Your International Solution Partner Since 1955

We operate in more than 15 countries with our 55,000 m² factory and over 70 years of experience, knowledge, experience, technology, capabilities and international network.

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Advanced Engineering and High Technology

We can manufacture 14,000 different products, primarily carbon steel and stainless steel groups, in our 35,000 m² factory built on 55,000 m² of open space.

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Pipe Spool Manufacturing

We manufacture all pipe spools needed by natural gas combined cycle power plants, geothermal power plants, thermal power plants, oil refineries and petrochemical facilities.

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Pressure Vessel Manufacturing

As GGN-CO Swiss, we can manufacture pressure vessels and boilers for all ASME projects using the latest technological possibilities.

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Projecting & Engineering & Manufacturing

We try to meet our customers' expectations at the highest level with our expertise, experience and correct project planning. In line with these values, we provide services in terms of isometric drawing, design and re-projecting of lines in cases encountered in the field.

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Advanced Steel Manufacturing and Engineering

We manufacture steel supports and constructions required for spools and pressure vessels in our product range, as well as steel skid manufacturing required for power plants, within GGN&CO Swiss.

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Quality and Testing Services

We provide a certain standardization in our product quality with testing services. Testing services encourage quality, eliminate the loss of labor, time and raw materials that will occur with low-quality production, and remove bad products from the market.

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Over 70 Years of Experience

With over 70 years of experience, GGN directly exports its own manufactured products to 66 countries on 6 continents.

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Induction Bends

With our induction bending capability and machines capable of bending all material qualities up to 60” - 7D and 60mm, products can be made from all longitudinally welded or seamless pipes.

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Ring Rolling

Up to 5500mm diameter. Duplex, Super Duplex, Stainless, Carbon Steel and All Alloy Materials.

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Since 1955, GGN has been constantly improving its manufacturing capabilities and technologies by bringing together its high-quality products with its customers in the most suitable way and adopting satisfaction as its basic principle.

In our 35,000 m² factory built on 55,000 m² of open space, we can provide services primarily in carbon steel and stainless groups, as well as 16Mo3, P11, P22 and P91 product groups.

Our company, which produces pipe fittings and fabrication at world standards and quality with its superior technology, has been among the first in the sector and has been the choice of many companies. It is among the few manufacturers in the world with its expert engineer staff and a product range of over 14,000 products. It has the capacity to produce all the needs of the sector, including carbon steel, stainless steel, alloy steels and special steel groups.

ABOUT US >

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Our company, which is a manufacturer with ASME S and U Stamp and Pressure Piping certificates, also has ISO 9001, ISO 14001 and ISO 45001 certificates. We can provide service in 16Mo3, P11, P22 and P91 product groups, especially carbon steel and stainless groups. GGN; As of November 2016, ASME NPT, NR and R Stamp studies have started.

ADVANCED TECHNOLOGY
MANUFACTURING SOLUTIONS

Since 1955, GGN has been producing flanges, elbows, tees, reducers, caps and forged fittings for oil and natural gas lines, refineries and petrochemical plants, purification and separation plants, nuclear and power generation plants, dams and hydroelectric power plants, shipbuilding industry, defense and automotive industry.

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  • Manufacture of Prefabricated Piping Parts

    With its advanced production capabilities and engineering expertise, GGN designs and manufactures a wide range of prefabricated piping components to meet the highest standards. With over 14,000 product references available, we offer solutions tailored to the specific needs of each project, ensuring quality, reliability, and optimized installation times.

  • Manufacture of Pressure Equipment Compliant with International Standards

    GGN designs and manufactures pressure vessels and heat exchangers in accordance with the most demanding international standards, such as ASME, PED, TEMA, and AD-2000. Our in-house design office ensures optimized designs tailored to the specific needs of each project, ensuring performance, safety, and reliability in the most demanding industrial environments.

  • Manufacture of Metal Frames and Pipe Supports

    Spool and basin can be installed in the support of the base of the pump, the energy will be reduced by the skid imalatlarını of the GGN bünyesinde yapmaktayız.

  • Testing and Quality Control Services

    At GGN, we have a state-of-the-art laboratory dedicated to performing a wide range of destructive and non-destructive tests, ensuring the metallurgical compliance of our products with international standards.

    Our facilities include:
    ✔ Several test benches for the mechanical and metallurgical evaluation of materials
    ✔ A dedicated X-ray testing bunker for internal weld inspection
    ✔ A hydraulic pressure test pit specially designed for our piping spools

    Thanks to this equipment, we ensure rigorous quality control, thus eliminating non-conformities, optimizing production, and strengthening the market competitiveness of our products.

  • Engineering and Project Management

    At GGN, we apply our expertise and engineering capabilities to the comprehensive design of your projects. Through a rigorous approach incorporating advanced calculations, simulations, planning, and scheduling, we optimize each phase of the project to ensure efficiency, compliance, and timeliness. Our mastery of analysis and management tools allows us to anticipate technical and logistical constraints, ensuring the smooth and efficient execution of your industrial projects.

Manufacture of Pressure Equipment Compliant with International Standards

Ring Rolling

Steel Pipe Fittings

Wind Turbine - Tower Equipment

REFERENCES · PARTNERS