Product

Pressure vessels are enclosed containers designed to hold fluids or gases at pressures significantly different from ambient conditions. While they can theoretically be manufactured in various shapes, practical designs typically use combinations of spheres, cylinders, and cones due to their strength and ease of fabrication. These geometries help distribute internal pressure evenly, reducing stress concentrations and improving safety.

The most common configuration is a cylindrical shell fitted with end closures known as heads. These heads are often designed as hemispherical or dished (torispherical) shapes, as they provide excellent structural integrity under pressure while optimizing material usage. Hemispherical heads offer the highest strength but are more expensive to manufacture, whereas torispherical heads balance performance and cost.

More complex shapes are rarely used because they are difficult to analyze for stress distribution and challenging to fabricate accurately. Standardized designs ensure reliable performance, easier maintenance, and compliance with safety codes, making pressure vessels suitable for a wide range of industrial applications.