vane compressor Flashcards

1
Q

valve located at the compressor discharge. It allows the wet sliding vane compressor to build enough pressure to get the oil lubrication system working first before sending any air out into the system

A

minimum pressure valve

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2
Q

valve located at the discharge to prevent backflow of compressed air into the compressor on shutdown. On the wet vane, the valve is built into the minimum pressure valve.

A

check valve

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3
Q

valve found after the air filter but before the rotor. It regulates incoming air and matches it to the system requirement. It is open on compressor start up and closes with oil pressure from the servo as pressure builds within the casing.

A

unloader valve

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4
Q

valve in the oil reservoir, just below the unloader valve. It is normally closed on start up and opens as compressor pressure builds. When it opens, it allows oil pressure to reach the unloader valve and move it to the closed position.

A

servo valve

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5
Q

valve on the stator near the compressor discharge. It allows the trapped oil an escape route to prevent hydraulic lock and possible compressor damage.

A

oil relief valve

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6
Q

valve in the bottom of the oil separator on top of the compressor. They allow the separated oil but not air, to be fed back into the compressor intake.

A

oil return valve

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7
Q

valve is in the bottom of the stator. It allows oil to drain back to the reservoir and prevent hydraulic lock

A

oil release valve

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8
Q

valve found on the casing between the rotor and the minimum pressure valve. It prevents overpressure of the casing. It can also be used to unload the compressor for ease of starting.

A

safety relief valve

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9
Q

valve found near the compressor intake and is used to break the vacuum that causes blade instability. This blade instability causes the blade to bounce of chatter, damaging the stator surface.

A

vacuum valve

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