This presentation by Justin Phillips, P.E., presents language from the newest API standards updates, the significance of the updates for the process industry, and clarification on the standard with helpful links and diagrams. Here the most significant changes in API 520 Part 1, sizing and selection of pressure-relieving devices (10th Edition) are reviewed. The standard provides important sizing procedures that give operators the correct specifications when choosing a pressure-relieving device for their refinery. This presentation also highlights API 520 Part 2, installation of pressure-relieving devices (7th Edition). The standard includes details of an Engineering Analysis that can be performed to ensure appropriate installation of pressure-relieving devices. Changes to API 521, pressure-relieving and depressuring systems (seventh edition) are also reviewed. API 521 provides guidance, recommendations, and alternatives for the design of pressure-relieving and vapor de-pressuring systems at liquefied natural gas terminals, petrochemical facilities, gas plants, and other petroleum production facilities. Since 1924, the American Petroleum Institute (API) has established and maintained standards for the oil and gas industry. Because API standards development is ANSI-accredited, policymakers and companies can trust that API standards meet the industry’s stringent performance criteria, with appropriate margins for safety and environmental protection.
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