Questions and Answers
How often should try lever tests be performed on power boilers operating below 2760 kPa?
Every six months
What is the purpose of a try lever test for pressure relief valves?
To determine if the valve is fully closed
When should the try lever test be conducted for steam heating boilers?
When the boiler pressure is at least 35 kPa
Where can detailed descriptions of pressure relief valve test procedures be found?
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What is the minimum power boiler pressure required for conducting try lever tests?
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What should be done if the relief valve simmers after a try lever test?
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What should be done if the safety valve continues to simmer after operating the try lever two or three times?
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When should pop tests be performed on a boiler?
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Who is qualified to adjust or repair pressure relief valves according to ASME BPVC sections?
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What is the purpose of accurately recording the opening and reseating pressures during a pop test?
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What should be done if a defective safety valve is identified during a pop test?
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Why is it important to perform pop tests annually?
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