USCG Exam PracticePumps, valves, and piping systems
According to 46 CFR §56.07-10, the rated relieving capacity of safety and relief valves used solely for the protection of piping systems must be certified by the manufacturer at what percentage of the valve's set pressure?
- A. 100 percent
- B. 110 percent
- C. 115 percent
- ✓ 120 percentCorrect
Why D is correct
46 CFR §56.07-10(b)(2) specifies that the rated relieving capacity must be based on actual flow test data and certified by the manufacturer at 120 percent of the set pressure of the valve.
Cited:46 CFR §56.07-10