Learn about the different types of dished heads and their role in pressure vessels, storage tanks and industrial process equipment.
Dished heads are critical components used to close the ends of pressure vessels, tanks, heat exchangers and other industrial equipment. Their geometry allows them to withstand internal and external pressures efficiently while ensuring structural integrity and operational safety.
Modern manufacturing processes combine advanced dishing and flanging technologies with precise quality control to produce dished heads that meet international standards.
What Are Dished Heads?
Dished heads are formed metal components manufactured from flat plates through controlled forming operations. Their curved geometry provides superior strength compared to flat end closures.
They are widely used in industries where pressure resistance, reliability and durability are essential.
Main Types of Dished Heads
Torispherical Heads
Torispherical heads are among the most commonly used designs for pressure vessel applications due to their balance between strength and manufacturing efficiency.
Elliptical Heads
Elliptical heads provide excellent pressure resistance and are frequently used in demanding industrial applications.
Hemispherical Heads
Hemispherical heads offer the highest pressure resistance but generally require more complex manufacturing processes.
Industrial Applications
- Pressure vessels.
- Storage tanks.
- Heat exchangers.
- Energy industry equipment.
- Chemical processing plants.
- Oil and gas installations.
How Dished Heads Are Manufactured
The production process typically combines forming, trimming and inspection operations to achieve the required geometry and quality.
Specialised head forming machines and powerful dishing presses are commonly used during manufacturing.
Quality and Standards
Dished heads are often manufactured according to international pressure vessel standards that define dimensional tolerances and material requirements.
The Importance of Dished Heads
Dished heads remain fundamental components in modern industrial equipment, combining strength, safety and efficiency in a single engineered solution.