Cylindrical Segment

Ankay Büküm manufactures cylindrical penstock pipe segments in DN300-DN3000 diameter and 6-60 mm wall thickness.

What Is a Cylindrical Segment?

A cylindrical segment is a straight pipe section that forms the main body of penstock pipelines. It is produced by rolling steel plates into cylindrical form on plate bending machines and joining them by welding. It is the most fundamental component of penstock lines used to convey water from dams to turbines in hydropower plant (HPP) projects. At Ankay Büküm in Ankara's Ostim Industrial District, we manufacture cylindrical segments from DN300 to DN3000 diameter and 6 mm to 60 mm wall thickness, providing production support for HPP projects across Turkey.

Application Areas

Hydropower Plants: Straight sections of penstock main lines, water tunnel outlet connections, and turbine inlet sections
Water Transmission Lines: Main pipe segments for high-pressure water lines and inter-city water transfer projects
Industrial Pipelines: Large-diameter industrial process pipelines, cooling water lines, and wastewater transmission pipes
Dams and Irrigation: Dam downstream pipelines, irrigation tunnel outlet pipes, and discharge pipe segments
Mining: Slurry lines, hydraulic transport pipe systems, and waste management pipelines

Technical Capacity and Specifications

Our cylindrical segment production covers DN300 to DN3000 diameter range with 6 mm to 60 mm wall thickness. Standard segment length ranges from 1.5 m to 3 m, adjusted per project requirements. Plate rolling uses 3 and 4-roll hydraulic machines, and longitudinal seam welding is performed by SAW (submerged arc) method. Materials include S235JR, S355J2, P265GH, and L360 grade steels. Segment ends are delivered with weld preparation.

Quality Assurance

All cylindrical segments are produced under EN ISO 3834-2 welding quality standard. Longitudinal seam welds undergo 100% radiographic (RT) or ultrasonic (UT) testing. Diameter measurement, roundness inspection (ovality <1%), and surface quality checks are applied to each segment. Production complies with EN 10219 and AWWA C200 standards.

Ankay Büküm delivers reliable cylindrical segment manufacturing from Ankara Ostim across Turkey. For main pipe segment needs of your HPP penstock projects, our dedicated manufacturing capacity, certified welding workshop, and NDT inspection infrastructure are at your service. Share your project specifications and let us develop the production plan together.

Frequently Asked Questions

What is a cylindrical segment and what is it used for?

A cylindrical segment is the straight pipe component forming the main body of penstock lines. Produced by rolling steel plate into cylindrical form and welding. Used in HPP projects to convey water from dams to turbines.

What sizes are cylindrical segments produced in?

DN300 to DN3000 diameter, 6-60 mm wall thickness. Segment length 1.5-3 m adjusted per project requirements.

What is Ankay Büküm's cylindrical segment capacity?

Segments up to DN3000 diameter and 60 mm wall thickness. SAW welding, 100% NDT inspection, and EN 10219 compliant production.

What materials are used?

S235JR, S355J2, P265GH, and L360 grade steels. Material selection based on project pressure, temperature, and corrosion requirements.

How are pricing and delivery times determined?

Pricing is project-based per diameter, wall thickness, material grade, quantity, and NDT scope. Manufacturing time ranges 2-8 weeks depending on project size. Contact us for details.