During relief valve inspection, which result is a direct verification?

During relief valve inspection, which result is a direct verification?

• A. Water is flowing through it properly
• B. The valve opens to relieve pressure
• C. The valve is painted
• D. The noise level is reduced

Answer: (B)

Relief valves are meant to open at the set relief pressure to protect the system. The direct verification is observing the valve actually opens to relieve when that pressure is reached, confirming it will function as designed. Merely seeing water flow doesn’t prove correct operation at the set point, painting is cosmetic and not a test of performance, and a reduced noise level doesn’t confirm that the valve relieves at the correct pressure.

Relief valves are meant to open at the set relief pressure to protect the system. The direct verification is observing the valve actually opens to relieve when that pressure is reached, confirming it will function as designed. Merely seeing water flow doesn’t prove correct operation at the set point, painting is cosmetic and not a test of performance, and a reduced noise level doesn’t confirm that the valve relieves at the correct pressure.