Pressure machines are devices designed to operate under high pressure, often used in various industrial applications. They can include equipment like boilers, compressors, and pressure vessels, which help in processes such as heating, gas compression, and storing liquids. These machines are built to withstand significant pressure differences, ensuring safety and efficiency in their operations. The design of pressure machines typically involves robust materials and engineering to prevent failures. Regular maintenance and safety checks are crucial to ensure they function correctly and safely. Understanding the principles of thermodynamics and fluid mechanics is essential for optimizing their performance and longevity.