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About This Item

 

Full Description

This standard is a purchase specification for flanged steel pressure relief valves. Basic requirements are given for direct spring-loaded pressure relief valves and pilot-operated pressure relief valves as follows: orifice designation and area; valve size and pressure rating, inlet and outlet; materials; pressure-temperature limits; and center-to-face dimensions, inlet and outlet.
 

Document History

  1. API Std 526


    Flanged Steel Pressure-relief Valves, Eighth Edition

    • Most Recent
  2. API Std 526


    Flanged Steel Pressure-relief Valves, Seventh Edition, Includes Errata 1 (2018)

    • Historical Version
  3. API Std 526


    Flanged Steel Pressure-relief Valves, Sixth Edition (Includes Errata 1, Errata 2)

    • Historical Version
  4. API Std 526

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    Flanged Steel Pressure Relief Valves, Fifth Edition

    • Historical Version
  5. API 526


    Flanged Steel Pressure Relief Valves

    • Historical Version