What is a process stub, as defined in 40 CFR 82.152?
Recovery techniques · EPA 608 Type I. The correct answer, and the reasoning behind it.
Identifying refrigerants, access valves, passive recovery and solderless fittings.
The question
What is a process stub, as defined in 40 CFR 82.152?
- A valve that lets refrigerant flow in only one direction through a line
- A fitting that releases pressure when it gets too high
- Tubing that gives access to the refrigerant and can be resealedCorrect answer
- A short pipe that drains oil from the compressor
Why “Tubing that gives access to the refrigerant and can be resealed” is correct
The regulation defines a process stub as a length of tubing that provides access to the refrigerant inside a small appliance or room air conditioner and that can be resealed at the conclusion of repair or service.
Source: 40 CFR 82.152
Why the other answers are wrong
- A valve that lets refrigerant flow in only one direction through a line — That is a check valve.
- A fitting that releases pressure when it gets too high — That is a pressure relief device.
- A short pipe that drains oil from the compressor — A process stub provides refrigerant access, not an oil drain.
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