Relief valve

Relief valve means a valve used only to release an unplanned, nonroutine discharge. A relief valve discharge can result from an operator error, a malfunction such as a power failure or equipment failure, or other unexpected cause that requires immediate venting of gas from process equipment in order to avoid safety hazards or equipment damage.

Source

40 CFR § 63.111

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Scoping language

All terms used in this subpart shall have the meaning given them in the Act, in subpart F of this part, and in this section, as follows.

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