What is the difference between a pressure tank and a pressure vessel?

　　While often used interchangeably,pressure tanks and pressure vessels serve distinct purposes and have different design specifications.
　　A pressure tank is primarily designed for the storage and management of fluids under pressure,such as water or gas.These tanks are often utilized in applications like irrigation systems,well water systems,and heating systems.They generally operate at lower pressures and may include features like diaphragm systems to maintain water pressure,making them suitable for household and agricultural use.
　　In contrast,a pressure vessel is a more robust structure engineered to hold gases or liquids at significantly higher pressures.Commonly found in industries such as oil and gas,chemical processing,and power generation,pressure vessels undergo stringent standards and codes to ensure safety and integrity.They are built to withstand extreme temperatures and pressures and often require complex engineering analyses during their design phase.
　　Moreover,pressure vessels are typically made from high-strength materials and are subjected to rigorous inspection processes,while pressure tanks may not require such stringent scrutiny.
　　In summary,the primary difference lies in their applications and structural requirements,with pressure vessels designed for high-pressure environments and critical industrial uses,and pressure tanks intended for lower-pressure fluid storage and management.