About Us

The Grandpipe was built on an open area of ​​87.500 m², with 13.200 m² closed.

The management and production facilities of Grandpipe Sanayi ve Ticaret AS are located in Yalova. Grandpipe has a partnership with Grandpipe Technology in pipe systems and technology.

Grandpipe follows national and international markets through its domestic and international offices.

Grandpipe Technology has been operating in the GRP pipe and composite sector since 1992 and has been successful in projects in which GRP pipes and composites are used successfully in all kinds of water conveyance, special process applications and transportation products. The most important factor in achieving these successes is the Grandpipe Technology Center, where research and development work is carried out with great care.

Grandpipe products fulfill the requirements of standards published by many standard organizations such as CEN, ISO, TSE, AWWA, ASTM, BSI.

Grandpipe's standard product range is as follows.
* Diameter: DN 100 - 4000 mm
* Pressure: PN 1 - 40 bar
* Stiffness: SN 1250 - 10000 Pa

This product range defines standard products and tailor-made for non-standard applications in accordance with customer requirements and project needs. Above mentioned pressure and stiffness values, there are Grandpipe approved designs.

Scope Of Our company:
"Production and Sales of GRP Pipes and Fittings".

Dear Stakeholders,

At Grandpipe, we do not see our operations merely as production; we shape them according to principles of quality, environmental responsibility, and sustainability. Fully compliant with national and international standards, and with a management approach centered on customer satisfaction, we carry the responsibility of being a pioneering brand that adds value to the infrastructure sector.

Our goal is to continue producing reliable and eco-friendly solutions that meet not only today’s but also future needs. We remain committed to building tomorrow with a mindset of continuous improvement.

Sincerely,

Seyed Kiarash Naghibi

Chairman of the Board / CEO