Concerning pressure-relief valves, what...

Question 1 / 205eccef9bbacbc34ba4d453e1

Question 1 of 205eccef9bbacbc34ba4d453e1

Concerning pressure-relief valves, what statement is true?

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Question 1 of 20

5eccef9bbacbc34ba4d453e1

Concerning pressure-relief valves, what statement is true?

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🔍 Key Concepts

• Purpose of a pressure-relief valve – what it is intended to do in an overpressure situation • How a stop isolation valve could affect the operation of a relief valve if it is closed • Regulatory/engineering idea that relief paths must remain unobstructed in normal service

💭 Think About

• If someone accidentally or intentionally shut a stop valve near the relief valve, what would happen during an overpressure event? • Is it safer (or more typical) to allow any valves on the inlet side, the discharge side, both, or neither? Think about where pressure could be trapped. • Consider the intent of safety codes: do they want any possibility that the relief device can be isolated from the system it’s protecting?

✅ Before You Answer

• Check which side (between the source of pressure and the relief valve) is most critical to keep always open for safety. • Check whether safety codes allow any valve on the discharge side if it might block flow from the relief valve when shut. • Confirm that the correct statement will not allow a single-operator action to completely defeat the relief protection during normal operations.

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Question 1 of 20

Concerning pressure-relief valves, what statement is true?

No stop isolation valve may be installed between the relief valve and its source of pressure, and no stop isolation valve may be installed in the relief valve discharge piping.

It is permissible to install a stop isolation valve between the relief valve and its source of pressure, but no stop isolation valve may be installed in the relief valve discharge piping.

It is permissible for a stop isolation valve to be installed between the relief valve and its source of pressure, and it is permissible for a stop isolation valve to be installed in the relief valve discharge piping.

No stop isolation valve may be installed between the relief valve and its source of pressure, but it is permissible for a stop isolation valve to be installed in the relief valve discharge piping.

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Question 1 / 205eccef9bbacbc34ba4d453e1

Question 1 of 205eccef9bbacbc34ba4d453e1

Concerning pressure-relief valves, what statement is true?

Back

Question 1 of 20

5eccef9bbacbc34ba4d453e1

Concerning pressure-relief valves, what statement is true?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

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