Tag: ASME

Understanding ASME Flange Standards When selecting flanges for piping systems, engineers often face the decision between ASME B16.5 and B16.47 standards. Understanding the key differences ensures proper specification and cost-effective design. ASME B16.5 Overview Size Range: NPS 1/2 to NPS 24 Pressure Classes: 150, 300, 600, 900, 1500, 2500 Applications: General process piping, refineries, chemical […]

Mastering ASME B16.5 Flange Dimensions A flange size chart ensures proper fit-up, bolt alignment, and gasket seating. Misreading tables leads to costly mistakes. Key Dimension Parameters NPS Nominal Pipe Size (not actual OD for 14 inch+) Class Pressure rating: 150, 300, 600, 900, 1500, 2500 Outside Diameter Overall flange diameter Thickness Flange thickness at hub […]

Understanding Flange Standards Comparison Between ASME, API, ISO, and PED, which standard is strictest? The answer depends on what you measure. PED: Europe Legal Mandate The Pressure Equipment Directive (2014/68/EU) is an EU legislative directive for pressure equipment over 0.5 bar. Unlike voluntary ASME/API standards, PED is a regulatory mandate requiring CE marking for EU […]