What kind of fitting is often clamped onto the tubing to gain access without brazing?
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
Most small appliances have no service valves. What kind of fitting is often clamped onto the tubing to gain access without brazing?
- A king valve
- A spring-loaded pressure relief valve
- A solderless piercing access valveCorrect answer
- A thermostatic expansion valve
Why “A solderless piercing access valve” is correct
Small appliances are hermetically sealed and usually have only a process stub. A piercing access valve clamps onto the tubing and gives access without brazing, but it should be removed at the end of service.
Source: EPA: Test Topics; 40 CFR 82.152
Why the other answers are wrong
- A king valve — King valves are on the receivers of larger systems.
- A spring-loaded pressure relief valve — A relief valve protects against overpressure; it is not an access fitting.
- A thermostatic expansion valve — A TXV meters refrigerant; it is not used to gain service access.
Practice more of this
More EPA 608 Type I practice questions, or see every EPA 608 practice test.
Unofficial, not affiliated with the EPA or any EPA-approved certifying organization. Questions are original practice written from public EPA material, not real exam questions.