ASME B16.5
ASME B16.5 is an American National Standard published by the American Society of Mechanical Engineers (ASME) that specifies dimensions, tolerances, materials, testing, and marking requirements for pipe flanges and flanged fittings. It covers flanges in sizes from NPS 1/2 to NPS 24 and pressure ratings from Class 150 to Class 2500, ensuring compatibility and safety in piping systems. This standard is widely used in industries such as oil and gas, chemical processing, power generation, and water treatment for connecting pipes, valves, pumps, and other equipment.
Developers, particularly mechanical engineers, piping designers, and project managers, should learn ASME B16.5 when designing, specifying, or maintaining piping systems that require standardized flanged connections to ensure safety, reliability, and interoperability. It is essential for compliance with regulatory codes in high-pressure or hazardous fluid applications, such as in petrochemical plants or power facilities, where failure could lead to leaks or accidents. Understanding this standard helps in selecting appropriate flanges, gaskets, and bolts, and in performing inspections or audits on existing installations.