Engine_2014 : Steam Plants - 612/1951
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| On an operating boiler, the superheater safety valve shown in the illustration is set to lift at 670 psi and reseat at 630 psi. To increase the lifting pressure to 700 psi, but maintain the previous reseat pressure, you would turn the compression screw __________ . |
| A) in the clockwise direction only |
| B) in the counterclockwise direction only |
| C) clockwise direction and lower adjusting ring |
| D) counterclockwise direction and raise the adjusting ring |
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Illustration SG-0018
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