Api 553 | Pdf

Guidance on EBVs for containing flammables and toxic materials, including requirements for fail-safe positions (usually "fail-close").

A 3rd Edition was in development as of early 2024. api 553 pdf

Based on the table of contents, the is structured to guide engineers through the entire lifecycle of a valve: Guidance on EBVs for containing flammables and toxic

Includes guidelines for Fluid Catalytic Cracking Unit (FCCU) slide valves and vapor depressurizing systems. Critical Sections of the Document published in October 2012

Offers extensive recommendations for Emergency Block Valves (EBVs) and on/off valves used in Safety Instrumented Systems (SIS).

The 2nd Edition, published in October 2012, is the current active version.