Pressure Vessels are containers designed to hold gases or liquids at a pressure significantly different from the ambient pressure. These vessels are used in a variety of applications, ranging from industrial processes to everyday products. They are typically made of steel or other metals, and they are designed to withstand high pressures without leaking or failing. They may be cylindrical or spherical in shape, and they may be equipped with various features, such as valves, gauges, and safety devices, to control and monitor the pressure and ensure safe operation. Pressure Vessels are used in various industrial processes, such as chemical processing, oil and gas refining, and power generation, to hold and transport gases and liquids at high pressures and temperatures.