what is difference b/w the solinoid volve and autodrain?

Answer Posted / priyank sharma neb alwar rajas

solenoid is a electropneumatic device which flow the air
according to coil charge & discharge command. that coil may
be 24 vDC or 230 VAC.
autodrain is the elctROMECHANIC DEVICE which is the
combination of solenoid valve & control card.in that
solenoid passes the water at the coil charging command.it
uses in air receivers for drain the water.

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