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Testing and Repair of Pressure Relief Valves

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Testing and Repair of Pressure Relief Valves

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Questions and Answers

What is the purpose of the 'pop test' for safety valves?

To check the full operation of the safety valve, including the exact pressures at which it opens and closes (correct)

To determine whether the valve is operating properly or if it requires repair or replacement

To increase boiler steam pressure to the safety valve set point

To perform maintenance on the safety valve

When should the pop test be performed?

Annually (correct)

Bi-annually

Quarterly

Semi-annually

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

Valve manufacturer or its authorized repair representative (correct)

Boiler maintenance personnel

Local boiler operators

Valve users

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

It should be repaired or replaced (B) Signup and view all the answers

What should be compared during the pop test to determine if the valve is operating properly?

Opening pressure and blowdown (D) Signup and view all the answers

What should be done before taking a boiler off-line for maintenance, according to the text?

Perform a pop test on all safety valves (C) Signup and view all the answers

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

To determine if the valve is operating freely (D) Signup and view all the answers

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

Every six months (D) Signup and view all the answers

What is the minimum required pressure for performing a try lever test on a steam heating boiler?

35 kPa (D) Signup and view all the answers

When should try lever tests be performed?

Before pop tests and accumulation tests (C) Signup and view all the answers

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

Part B, Unit 4, Chapter 4 Operational Checks (C) Signup and view all the answers

What is the primary purpose of keeping pressure relief valves in good working condition?

To ensure safe operation of the equipment (B) Signup and view all the answers

Testing and Repair of Pressure Relief Valves

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Questions and Answers

What is the purpose of the 'pop test' for safety valves?

When should the pop test be performed?

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

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

What should be compared during the pop test to determine if the valve is operating properly?

What should be done before taking a boiler off-line for maintenance, according to the text?

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

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

What is the minimum required pressure for performing a try lever test on a steam heating boiler?

When should try lever tests be performed?

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

What is the primary purpose of keeping pressure relief valves in good working condition?

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