Testing and Repair of Pressure Relief Valves
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Questions and Answers

How often should try lever tests be performed on power boilers operating below 2760 kPa?

  • Every month
  • Every three months
  • Every six months (correct)
  • Every year

    • What is the purpose of a try lever test for pressure relief valves?

  • To determine if the valve is leaking
  • To determine if the valve is faulty
  • To determine if the valve will open at its set pressure
  • To determine if the valve is fully closed (correct)

    • When should the try lever test be conducted for steam heating boilers?

  • When the boiler pressure is at least 35 kPa (correct)
  • When the boiler pressure is at least 70 kPa
  • When the boiler is not under any pressure
  • When the boiler pressure is below 35 kPa

    • Where can detailed descriptions of pressure relief valve test procedures be found?

    <p>ASME BPVC Sections I, IV, VI, and VII</p> Signup and view all the answers

    What is the minimum power boiler pressure required for conducting try lever tests?

    <p>At least 75% of the setting of the safety valve</p> Signup and view all the answers

    What should be done if the relief valve simmers after a try lever test?

    <p>Report to the maintenance department</p> Signup and view all the answers

    What should be done if the safety valve continues to simmer after operating the try lever two or three times?

    <p>Repair or replace the valve</p> Signup and view all the answers

    When should pop tests be performed on a boiler?

    <p>Annually</p> Signup and view all the answers

    Who is qualified to adjust or repair pressure relief valves according to ASME BPVC sections?

    <p>Local Boiler Inspector</p> Signup and view all the answers

    What is the purpose of accurately recording the opening and reseating pressures during a pop test?

    <p>To determine the exact pressures at which the safety valve opens and closes</p> Signup and view all the answers

    What should be done if a defective safety valve is identified during a pop test?

    <p>Replace or repair the valve prior to the boiler re-entering service</p> Signup and view all the answers

    Why is it important to perform pop tests annually?

    <p>To ensure compliance with ASME BPVC sections</p> Signup and view all the answers

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