Which one of the following is a difference between a typical relief valve and a typical safety valve?
A. The actuator closing spring on a relief valve is in a compressed state whereas the actuator closing spring on a safety valve acts in tension.
B. A relief valve gradually opens as pressure increases above the setpoint pressure whereas a safety valve pops open at the setpoint pressure.
C. Relief valves are capable of being gagged whereas safety valves are not.
D. The blowdown of a relief valve is greater than the blowdown of a safety valve.
Show Answer
Answer: B
Share your understanding of this question with the correct explanation.