Given the following specifications for a main steam safety valve (MSSV):
Setpoint pressure (MSSV starts to open) = 1,200 psia
Maximum pressure (MSSV will be fully open) = 1,230 psia
Reseat pressure (MSSV will be fully closed) = 1,140 psia
Which one of the following is the percent blowdown for the MSSV?
A. 2.5 percent
B. 5.0 percent
C. 7.5 percent
D. 33.3 percent
Show Answer
Answer: B
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