DV Systems HDI - Compressor Terminology

HDI-03-W
Mar ‘15
- 6 -
Compressor Terminology
Please refer to the picture below, as it identifies the major components of a typical Piston Air Compressor Unit
and their function. (Some Units may vary slightly from this design, eg. gas powered or base mounted Units.)
Compressor Pump
Compresses the air.
I
ntercooler
Allows the compressed air to
cool while it transfers between
the low and high pressure
Cylinder.
Beltguard
Protects personnel from the
moving parts of the Flywheel,
Pulley, and Belts.
Aftercooler Tube
Allows the compressed air
to cool as it transfers from
the Pump to the Tank.
Electric Motor
Pressure Switch
A Switch which starts and
stops the Unit at a
predetermined minimum
and maximum pressure.
Pressure Gauge
Reflects Tank pressure.
Safety Valve
Protects the Tank if
pressure is too high.
Check Valve
Allows the compressed air
to enter the Tank, but
prevents it from flowing
back out.
Air Receiver (Tank)
Stores the compressed air.
Magnetic Starter
An electrical device which
receives a signal from the
Pressure Switch and
allows power to flow to the
Motor.
Drain Valve
Allows the Customer to
drain moisture from the
Tank.
Ball Valve
Discharge/outlet from
Tank.
Pump Components
Please refer to the Compressor Pump Service Bulletin provided
with your Unit to identify the part numbers, location, and
quantities for your particular Pump model.