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Case Study: Custom Made Large Diameter Duplex Stainless Steel Segmental Tank Heads

Segmental tank heads are a type of vessel head commonly used in the construction of large tanks and pressure vessels. They are made up of multiple segments, which are welded together to create a single, seamless head. These tank heads are known for their durability, strength, and versatility, making them ideal for a variety of applications.

10.8m diameter tank head

In a recent project, Openex was tasked with fabricating a batch of large-diameter segmental tank heads. The project included the production of three different types of tank heads, each with unique specifications.

The first type of tank head had a diameter of 10800mm and was 18mm thick. The second type had a diameter of 10300mm and was 42mm thick, while the third had a diameter of 8000mm and was 32mm thick. To ensure the highest quality, tank heads with diameters over 10000mm were made of duplex stainless steel, while tank heads with diameters of 8000mm were made of Q345R.

8m diameter tank head

The fabrication process for these tank heads included several stages. First, the sheets of duplex stainless steel and Q345R were cut to size using plasma cutting and CNC cutting machines. The segments were then pressed into the required shape using hydraulic presses, after which the edges were beveled to prepare for welding.

10.3m diameter tank head

Next, the segments and the top were fitted together to ensure a tight and precise fit. Welding was then carried out using TIG welding and submerged arc welding methods. After welding, the edges were beveled again to remove any excess material and ensure a smooth finish.

Finally, inspection was carried out using ultrasonic and magnetic particle testing methods to ensure that the tank heads met the highest quality standards. This rigorous testing process ensured that the tank heads were safe and reliable for use in a range of applications.

Openex has years of experience in the fabrication of custom-made tank heads and other pressure vessel components. We are committed to providing high-quality products and services to our customers, and our team of skilled professionals has the expertise to handle even the most complex projects.

In conclusion, the custom-made large-diameter duplex stainless steel segmental tank heads project was a great success, and we were proud to have been a part of it. Our commitment to quality and attention to detail allowed us to deliver tank heads that met the highest standards of safety and reliability. If you need custom-made tank heads or other pressure vessel components, please contact us at yuki.zhou@openex.com.cn to learn more about how we can help.

About Openex

Openex is home to a full-service, one-stop-shop, contract manufacturing company producing custom large machined parts and fabrications. Our full large fabrication services including large machining, cutting, welding, rolling, punching, braking, testing, painting, and others.
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