API 526 is a standard published by the American Petroleum Institute (API) that covers safety valves for use in the petroleum and natural gas industries. API 526 safety valves are designed to protect against overpressure conditions in piping systems, vessels, and equipment by automatically relieving excess pressure. They are used to protect against hazards such as explosions, structural damage, and injury to personnel. API 526 covers the design, materials, testing, and installation requirements for safety valves in these applications.
API 526 is a purchasing specification for "API safety valves" that specifies nominal diameters, flange pressure ratings, center-to-face dimensions, flow areas, body and spring materials, and service restrictions. API safety valves are utilized in the petrochemical sector globally, both on and off-shore. Standardized plants, blow-down systems, and large pipework sections distinguish these applications. The LESER type 526 combines the API standards and the ASME Code requirements with the LESER range's established and tested service reliability.
