What kind of pressure vessel is designed for absolute pressures exceeding 40 psi?

A cylinder is specifically designed to hold compressed gases at high pressures, making it suitable for applications where absolute pressures exceed 40 psi. These vessels are constructed from strong materials that can safely contain the pressurized gas, ensuring both functionality and safety.

Cylinders are subject to rigorous testing and manufacturing standards to withstand the high pressures they are expected to contain. They typically have features such as thick walls and reinforced construction, which help minimize the risk of rupture under pressure. These design characteristics make cylinders appropriate for the storage and transport of compressed natural gas (CNG), which is often utilized in various applications, including fuel for vehicles.

The other types of pressure vessels mentioned do not generally adhere to the same standards for high-pressure containment as cylinders do. For example, portable tanks usually have a different structural design focused on mobility rather than high-pressure applications, while multiunit tanks may be used for bulk storage and distribution. Pressure chambers may be employed in specific applications, but they typically do not serve the same purpose as cylinders in high-pressure gas storage and transport.