USCG Exam PracticePumps, valves, and piping systems
According to 46 CFR §56.07-10, a relief valve protecting a piping system must have a relieving capacity sufficient to prevent pressure from rising more than what percentage above the system's maximum allowable working pressure?
- A. 10 percent
- B. 15 percent
- ✓ 20 percentCorrect
- D. 25 percent
Why C is correct
46 CFR §56.07-10(b)(2) requires that the relieving capacity of a relief valve be sufficient to prevent pressure from rising more than 20 percent above the system maximum allowable working pressure.
Cited:46 CFR §56.07-10