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- First Assistant Engineer (Steam-Motor-Gas Turbine Plants (Unlimited)) »
- Q512 - General Subjects II
404. A reciprocating refrigeration compressor may be tested for leaking discharge valves by stopping the compressor, turning the discharge service valve all the way in, and then turning the compressor over by hand. If the discharge valves are leaking, the high-side pressure gauge will show pressures which react in which way?
Leaking discharge valves cause high-side pressure to rise during compression and fall during suction, resulting in oscillating pressure readings with each stroke.
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