USCG Exam PracticePumps, valves, and piping systems
Under 46 CFR §56.07-10, at what percentage of the set pressure must the rated relieving capacity of a safety or relief valve protecting a piping system be certified by the manufacturer?
- A. 100 percent of the set pressure
- B. 110 percent of the set pressure
- ✓ 120 percent of the set pressureCorrect
- D. 150 percent of the set pressure
Why C is correct
46 CFR §56.07-10(b)(2) specifies that the rated relieving capacity must be certified by the manufacturer at 120 percent of the set pressure of the valve. The other percentages do not appear in this provision.
Cited:46 CFR §56.07-10