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13 Cards in this Set
- Front
- Back
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The unloading system on an air compressor will? |
Reduce the compressor meter load when starting. |
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A reciprocating air compressor is operating unloaded and intercooler relieve valve is blowing. Whats the probable cause for this? |
A defective pressure switch |
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What's operates the plate valves used in some air compressors? |
Pressure differential between stages |
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What would be the indication of air coming out of the compressor intake filter? |
Broken intake valve. |
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Why are uploaders put on air compressors? |
To reduce motor starter load. |
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What kind of pressure test would you use on a large air tank? |
Hydrostatic test (filled with water) |
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An after cooler on an air compressor is for? |
Cooling the discharge air. |
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What is the purpose of an intercooler on a multi stage compressor? |
Reduce the volume of air going to higher stages. |
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If an air compressor is running unloaded and the intercooler relief valve is blowing off, what's the problem? |
Bad interstage relief valve. |
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What actuates the compressor valve's blade plates? |
Pressure differential. |
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What would cause a self contained pressure regulator to have a low pressure at it's outlet? |
Low pressure at the valve. |
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What is an intercooler? |
A cooler located between 2 compressing stages, also the volume of air reduced during cooling, which helps the compressor work more efficiently. |
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What is an aftercooler on a compressor? |
A cooler that is located after the last compression stage. It removes much of the beat of compression from the compressed gas and removes moisture. |
