SUPERLIT is the only company in Turkey which can use both Continuous Filament Winding and Centrifugal Casting technologies togetherto produce GRP pipes and SUPERLIT has been continuing its activities unabated since 1961. With the continuous production technology SUPERLIT can produce between 300 mm and 4000 mm diameter GRP pipes.

Company details

Cumhuriyet Cad. 255/3 , Harbiye , Istanbul 34367 Turkey
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Business Type:
Industry Type:
Pipes and Piping
Market Focus:
Internationally (various countries)
Year Founded:

Our Vision

To become one of the three most value added companies in the world composite pipe systems market, renowned for its quality, cost, novelty and environmentally focused approach, with its technology and solutions prioritized in international infrastructure projects.

Our Mission

To provide the world’s scarce water resources with minimum loss for the benefit of mankind by contributing to nature’s ecological balance. While carrying out this mission, we strive to satisfy our shareholders, customers and employees to create resources for growth.


SUPERLIT Boru Sanayi A.S., the first company established by KARAMANCI HOLDING which has a significant role in the Turkish commerce and industry sector, was founded in 1961.

SUPERLIT, which produces and sells pressurized/unpressurized pipes in compliance with international standards, currently continues its GRP (Fibreglass Reinforced Polyester) Pipe production lines, and its wide scale powerful domestic and international sales activities with its product range, and high quality.

SUPERLIT is one of the largest in its sector.

Established on 185 acre land with an indoor area of 30 000 m2, SUPERLIT Duzce Factory possesses Glass-Fibre Reinforced Polyester (GRP) manufacture lines  which produce pipes:

  • within the 300 mm – 4000 mm dimension range
  •  of 1250 – 2500 – 5000 – 10000 – 20000 stiffness (and above with customized designs),
  •  resistant to 0-40 bar pressure.

Using both  “Continous Flament Winding” and “Centrifugal Casting” technologies that comply with national and international standards such as ISO, TS, BS, DIN, ASTM, and AWWA, SUPERLIT produces pipes for drinking water, watering, energy, sewerage systems, purifying, cooling, and sea discharge systems.

Since its founding in 1961, SUPERLIT, has been providing its products and services to Iller Bank, State Water Works, Municipalities, Water Administrations, Rural Services, Local Administrations, and Private Contractors in the domestic market. An exporter to international markets since 1977, particularly to  the Middle East, North Africa and Europe, today, SUPERLİT is amongst the most well-recognized companies iin Turkey and the World in manufacturing and supplying GRP pipes and additional parts.

New Investments
As a continuation of its growth goals and policies, SUPERLIT has realized its first international investment in Romania with the “Continous Flament Winding” technology by means of establishing its Fibreglass Reinforced Polyester pipe manufacture factory.
SUPERLIT aims to increase its investments in accordance with the demands in both domestic and international markets.

SUPERLIT will continue its characteristic and tradition of being the leading company in the market with its;

  • High technology manufacture lines,
  • High manufacturing capacity,
  • Wide range of products,
  • High quality and internationally recognized, approved products,
  • Before and after sales technical/consultancy services, and
  • Accumulating experience since 1961.

Superlit Boru San. A.S. is a member of CTP-Sander (Glassfiber Reinforced Plastics Manufacturers Association).


  • Possesses a Quality Control System that operates with a fully automatic control mechanism,
  • and that begins from the stage of procuring raw materials to the final stage of pipe manufacture.
  • It is presented to the consumer with complete assurance with impermeability, external load resistance, and environmental protection factors reinforced a lot more at each stage.
  • Without exception, each product that has completed the manufacture process meticulously undergoes all the tests stated in the international standards.

SUPERLIT is the first GRP pipe manufacturer in Turkey to have a TURKAK certified, internationally accredited laboratory.

Besides providing after sales service with its professional, qualified, and experienced staff, SUPERLIT also provides supervision services for application in unloading, storage, laying, and first land tests.

1961 : Superlit was established
1964 : Kartal Factory was established
1973 : Ankara Factory was established
1975 : Düzce factory was established
1986 : 25th Anniversary
1999 : Duzce earthquake
2000 : GRP Pipe Manufacturing was started (Düzce Factory)
2005 : First time in Turkey, Superlit Pipe Industries Inc. established International Accreditation Quality Lab.
2007 : Second CFW manufacturing line established in Duzce Factory
2008 : First time in Turkey, DN 3000 Diameter GRP pipe produced by Superlit Pipe Industries Inc..
2008 : First time in Turkey, DN 3000 Diameter GRP pipe produced for underwater application.
2008 : First time in Turkey, DN 3400 Diameter GRP pipe produced by Superlit Pipe Industries Inc.
2008 : Romania Factory was establishedı
2009 : Superlit is obtained the firstplace reward in “Best Company” Research by Human Researches Consulting Firm Hewitt.
2011 : 50th Anniversary
2012 : Malatya Factory was established. DN 4000 Diameter GRP pipe produced.